结构体系

Job_Management/.gitignore

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+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

Job_Management/.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml

Job_Management/.idea/compiler.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="1.8" />
+  </component>
+</project>

Job_Management/.idea/gradle.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="PLATFORM" />
+        <option name="disableWrapperSourceDistributionNotification" value="true" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="1.8" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+        <option name="resolveModulePerSourceSet" value="false" />
+        <option name="useQualifiedModuleNames" value="true" />
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

Job_Management/.idea/jarRepositories.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="BintrayJCenter" />
+      <option name="name" value="BintrayJCenter" />
+      <option name="url" value="https://jcenter.bintray.com/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="Google" />
+      <option name="name" value="Google" />
+      <option name="url" value="https://dl.google.com/dl/android/maven2/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven" />
+      <option name="name" value="maven" />
+      <option name="url" value="https://jitpack.io" />
+    </remote-repository>
+  </component>
+</project>

Job_Management/.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>

Job_Management/app/.gitignore

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+/build

Job_Management/app/build.gradle

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+plugins {
+    id 'com.android.application'
+}
+
+android {
+    compileSdkVersion 30
+    buildToolsVersion "30.0.3"
+
+    defaultConfig {
+        applicationId "com.hong.job_management"
+        minSdkVersion 16
+        targetSdkVersion 30
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+}
+
+dependencies {
+
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'com.google.android.material:material:1.1.0'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'com.github.PhilJay:MPAndroidChart:v3.0.3'
+    testImplementation 'junit:junit:4.+'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+    implementation 'com.baoyz.swipemenulistview:library:1.3.0'
+}

Job_Management/app/src/androidTest/java/com/hong/job_management/ExampleInstrumentedTest.java

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+package com.hong.job_management;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.ext.junit.runners.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.hong.job_management", appContext.getPackageName());
+    }
+}

Job_Management/app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.hong.job_management">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:usesCleartextTraffic="true"
+        android:theme="@style/Theme.Job_Management">
+        <activity android:name=".StatisticsActivity"/>
+        <activity android:name=".ScheduleActivity" />
+        <activity android:name=".RegisterActivity" />
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+    <uses-permission android:name="android.permission.INTERNET" ></uses-permission>
+</manifest>

Job_Management/app/src/main/java/com/hong/job_management/Homework.java

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+package com.hong.job_management;
+
+import android.widget.DatePicker;
+
+public class Homework {
+    private String homework_name;//用来放作业名称的
+    private String homework_subject;//用来放作业科目的
+    private String homework_rank;//用来放作业难度的
+    private String homework_time;//用来放作业截止时间的
+    public int isfinish;//1为已经完成，0为未完成
+    private String homework_finish;//完成标记
+
+    public Homework(String homework_name,String homework_subject,String homework_rank,String homework_time,int isfinish) {
+        this.homework_name = homework_name;
+        this.homework_rank = homework_rank;
+        this.homework_subject=homework_subject;
+        this.homework_time=homework_time;
+        this.isfinish=isfinish;
+    }
+
+    public String getHomework_finish() {
+
+        return homework_finish;
+    }
+
+    public void setHomework_finish(String homework_finish) {
+
+        this.homework_finish = homework_finish;
+    }
+
+    public String getHomework_name() {
+
+        return homework_name;
+    }
+
+    public void setHomework_name(String homework_name) {
+
+        this.homework_name = homework_name;
+    }
+
+    public String getHomework_subject() {
+
+        return homework_subject;
+    }
+
+    public void setHomework_subject(String homework_subject) {
+
+        this.homework_subject = homework_subject;
+    }
+
+    public String getHomework_rank() {
+
+        return homework_rank;
+    }
+
+    public void setHomework_rank(String homework_rank) {
+
+        this.homework_rank= homework_rank;
+    }
+
+    public String getHomework_time() {
+
+        return homework_time;
+    }
+
+    public void setHomework_time(String homework_rank) {
+
+        this.homework_time= homework_time;
+    }
+}
+
+
+
+
+

Job_Management/app/src/main/java/com/hong/job_management/JsonParse.java

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+package com.hong.job_management;
+
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+public class JsonParse {
+    public static byte[] readParse(String urlPath) throws Exception {
+        ByteArrayOutputStream outStream = new ByteArrayOutputStream();
+        byte[] data = new byte[1024];
+        int len = 0;
+        URL url = new URL(urlPath);
+        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
+        InputStream inStream = conn.getInputStream();
+        while ((len = inStream.read(data)) != -1) {
+            outStream.write(data, 0, len);
+        }
+        inStream.close();
+        return outStream.toByteArray();//通过out.Stream.toByteArray获取到写的数据
+    }
+
+    public static List<String> getList(String urlPath) throws Exception {
+        List<String> url_backgroud = new ArrayList<String>();
+        byte[] data = readParse(urlPath);
+        JSONArray array = new JSONArray(new String(data));
+        for (int i = 0; i < array.length(); i++) {
+            JSONObject item = array.getJSONObject(i);
+            String icon = item.getString("icon");
+            url_backgroud.add(icon);
+        }
+        return url_backgroud;
+    }
+}

Job_Management/app/src/main/java/com/hong/job_management/MyHelper.java

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+package com.hong.job_management;
+
+import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
+import android.database.sqlite.SQLiteOpenHelper;
+
+import androidx.annotation.Nullable;
+
+public class MyHelper extends SQLiteOpenHelper {
+
+    public MyHelper(@Nullable Context context) {
+        super(context,"Homework.db",null,2);
+    }
+
+    @Override
+    public void onCreate(SQLiteDatabase db) {
+        db.execSQL("CREATE TABLE homework(_id INTEGER PRIMARY KEY AUTOINCREMENT,subject VARCHAR(6),name VARCHAR(30),time VARCHAR(12),rank VARCHAR(6),isfinish INT(20))");
+    }
+
+    @Override
+    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
+    }
+}

Job_Management/app/src/main/java/com/hong/job_management/RegisterActivity.java

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+package com.hong.job_management;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.ContentValues;
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.database.sqlite.SQLiteDatabase;
+import android.os.Bundle;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.AdapterView;
+import android.widget.Button;
+import android.widget.DatePicker;
+import android.widget.EditText;
+import android.widget.Spinner;
+import android.widget.Toast;
+
+import static com.hong.job_management.MainActivity.chinese;
+import static com.hong.job_management.MainActivity.chinese_finish;
+import static com.hong.job_management.MainActivity.biology;
+import static com.hong.job_management.MainActivity.biology_finish;
+import static com.hong.job_management.MainActivity.chemistry;
+import static com.hong.job_management.MainActivity.chemistry_finish;
+import static com.hong.job_management.MainActivity.english;
+import static com.hong.job_management.MainActivity.english_finish;
+import static com.hong.job_management.MainActivity.geography;
+import static com.hong.job_management.MainActivity.geography_finish;
+import static com.hong.job_management.MainActivity.history;
+import static com.hong.job_management.MainActivity.history_finish;
+import static com.hong.job_management.MainActivity.math;
+import static com.hong.job_management.MainActivity.math_finish;
+import static com.hong.job_management.MainActivity.other;
+import static com.hong.job_management.MainActivity.other_finish;
+import static com.hong.job_management.MainActivity.physics;
+import static com.hong.job_management.MainActivity.physics_finish;
+import static com.hong.job_management.MainActivity.politics;
+import static com.hong.job_management.MainActivity.politics_finish;
+import static com.hong.job_management.MainActivity.sum;
+import static com.hong.job_management.MainActivity.sum_finish;
+
+
+public class RegisterActivity extends AppCompatActivity {
+        private Button bt_register;
+        private Spinner subject;
+        private String subject_select;
+        private Spinner rank;
+        private String rank_select;
+        private DatePicker time;
+        private String time_select;
+        private EditText name;
+        private String name_editext;
+        private int isfinish=0;
+        private RegisterActivity ScreenUtil;
+
+        MyHelper myHelper;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_register);
+        bt_register=(Button)findViewById(R.id.btn_homework_dj);
+        subject=(Spinner)findViewById(R.id.subject);
+        rank=(Spinner)findViewById(R.id.rank);
+        time=(DatePicker)findViewById((R.id.time));
+        name=(EditText)findViewById(R.id.name);
+        myHelper=new MyHelper(this);
+
+        rank.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                if(position!=0)
+                Toast.makeText(RegisterActivity.this, "您选择了 ：" +parent.getItemAtPosition(position).toString() , Toast.LENGTH_SHORT).show();
+            }
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+
+            }
+        });
+
+        subject.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
+            @Override
+            public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
+                if(position!=0)
+                Toast.makeText(RegisterActivity.this, "您选择了 ：" +parent.getItemAtPosition(position).toString() , Toast.LENGTH_SHORT).show();
+            }
+            @Override
+            public void onNothingSelected(AdapterView<?> parent) {
+
+            }
+        });
+
+        bt_register.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                ScreenUtil.closeSoftInput(RegisterActivity.this, v);//关闭输入法
+
+                SQLiteDatabase db;
+                ContentValues values;
+                name_editext=name.getText().toString().trim();
+                subject_select=subject.getSelectedItem().toString();
+                rank_select=rank.getSelectedItem().toString();
+                int year=time.getYear();
+                int month=time.getMonth()+1;
+                int day=time.getDayOfMonth();
+                time_select=(String.valueOf(year)+"."+String.format("%02d",month)+"."+String.format("%02d",day));
+                if(name_editext.length()==0||subject_select.equals("科目")||rank_select.equals("难度"))
+                {
+//                    db=myHelper.getWritableDatabase();
+//                    db.delete("homework",null,null);
+//                    db.close();
+                    if(subject_select.equals("科目"))
+                        Toast.makeText(RegisterActivity.this, "请选择作业科目", Toast.LENGTH_SHORT).show();
+                    else if(name_editext.length()==0)
+                        Toast.makeText(RegisterActivity.this, "请填写作业名称", Toast.LENGTH_SHORT).show();
+                    else if (rank_select.equals("难度"))
+                        Toast.makeText(RegisterActivity.this, "请选择作业难度", Toast.LENGTH_SHORT).show();
+                }else{
+                    name_editext=name.getText().toString();
+                    switch (subject_select)
+                    {
+                        case "语文":
+                            if(rank_select.equals("简单"))
+                            {
+                                chinese=chinese+1;
+                                sum=sum+1;
+                            }
+                            else if(rank_select.equals("中等"))
+                            {
+                                chinese=chinese+2;
+                                sum=sum+2;
+                            }
+                            else if(rank_select.equals("困难"))
+                            {
+                                chinese=chinese+3;
+                                sum=sum+3;
+                            }
+                            Toast.makeText(RegisterActivity.this, "作业登记成功！", Toast.LENGTH_SHORT).show();
+                            break;
+                        case "数学":
+                            if(rank_select.equals("简单"))
+                            {
+                                math=math+1;
+                                sum=sum+1;
+                            }
+                            else if(rank_select.equals("中等"))
+                            {
+                                math=math+2;
+                                sum=sum+2;
+                            }
+                            else if(rank_select.equals("困难"))
+                            {
+                                math=math+3;
+                                sum=sum+3;
+                            }
+                            break;
+                        case "英语":
+                            if(rank_select.equals("简单"))
+                            {
+                                english=english+1;
+                                sum=sum+1;
+                            }
+                            else if(rank_select.equals("中等"))
+                            {
+                                english=english+2;
+                                sum=sum+2;
+                            }
+                            else if(rank_select.equals("困难"))
+                            {
+                                english=english+3;
+                                sum=sum+3;
+                            }
+                            break;
+                        case "生物":
+                            if(rank_select.equals("简单"))
+                            {
+                                biology=biology+1;
+                                sum=sum+1;
+                            }
+                            else if(rank_select.equals("中等"))
+                            {
+                                biology=biology+2;
+                                sum=sum+2;
+                            }
+                            else if(rank_select.equals("困难"))
+                            {
+                                biology=biology+3;
+                                sum=sum+3;
+                            }
+                            break;
+                        case "物理":
+                            if(rank_select.equals("简单"))
+                            {
+                                physics=physics+1;
+                                sum=sum+1;
+                            }
+                            else if(rank_select.equals("中等"))
+                            {
+                                physics=physics+2;
+                                sum=sum+2;
+                            }
+                            else if(rank_select.equals("困难"))
+                            {
+                                physics=physics+3;
+                                sum=sum+3;
+                            }
+                            break;
+                        case "化学":
+                            if(rank_select.equals("简单"))
+                            {
+                                chemistry=chemistry+1;
+                                sum=sum+1;
+                            }
+                            else if(rank_select.equals("中等"))
+                            {
+                                chemistry=chemistry+2;
+                                sum=sum+2;
+                            }
+                            else if(rank_select.equals("困难"))
+                            {
+                                chemistry=chemistry+3;
+                                sum=sum+3;
+                            }
+                            break;
+                        case "历史":
+                            if(rank_select.equals("简单"))
+                            {
+                                history=history+1;
+                                sum=sum+1;
+                            }
+                            else if(rank_select.equals("中等"))
+                            {
+                                history=history+2;
+                                sum=sum+2;
+                            }
+                            else if(rank_select.equals("困难"))
+                            {
+                                history=history+3;
+                                sum=sum+3;
+                            }
+                            break;
+                        case "政治":
+                            if(rank_select.equals("简单"))
+                            {
+                                politics=politics+1;
+                                sum=sum+1;
+                            }
+                            else if(rank_select.equals("中等"))
+                            {
+                                politics=politics+2;
+                                sum=sum+2;
+                            }
+                            else if(rank_select.equals("困难"))
+                            {
+                                politics=politics+3;
+                                sum=sum+3;
+                            }
+                            break;
+                        case "地理":
+                            if(rank_select.equals("简单"))
+                            {
+                                geography=geography+1;
+                                sum=sum+1;
+                            }
+                            else if(rank_select.equals("中等"))
+                            {
+                                geography=geography+2;
+                                sum=sum+2;
+                            }
+                            else if(rank_select.equals("困难"))
+                            {
+                                geography=geography+3;
+                                sum=sum+3;
+                            }
+                            break;
+                        case "其他":
+                            if(rank_select.equals("简单"))
+                            {
+                                other=other+1;
+                                sum=sum+1;
+                            }
+                            else if(rank_select.equals("中等"))
+                            {
+                                other=other+2;
+                                sum=sum+2;
+                            }
+                            else if(rank_select.equals("困难"))
+                            {
+                                other=other+3;
+                                sum=sum+3;
+                            }
+                            break;
+                    }
+
+                    SharedPreferences myprefs=getSharedPreferences("homework_jd",MODE_PRIVATE);
+                    SharedPreferences.Editor editor=myprefs.edit();
+                    editor.putInt("chinese",chinese);
+                    editor.putInt("math",math);
+                    editor.putInt("english",english);
+                    editor.putInt("biology",biology);
+                    editor.putInt("chemistry",chemistry);
+                    editor.putInt("physics",physics);
+                    editor.putInt("history",history);
+                    editor.putInt("politics",politics);
+                    editor.putInt("geography",geography);
+                    editor.putInt("other",other);
+                    editor.putInt("sum",sum);
+                    editor.commit();
+                    editor.apply();
+
+                    //储存后清零
+                    name.setText("");
+                    rank.setSelection(0);
+                    subject.setSelection(0);
+
+                    values=new ContentValues();
+                    values.put("subject",subject_select);
+                    values.put("name",name_editext);
+                    values.put("time",time_select);
+                    values.put("rank",rank_select);
+                    //values.put("isfinish",isfinish);
+                    db=myHelper.getWritableDatabase();
+                    long insert_pd=db.insert("homework",null,values);
+                    db.close();
+                    if(insert_pd!=-1)//插入失败为-1
+                        Toast.makeText(RegisterActivity.this, "作业登记成功！", Toast.LENGTH_SHORT).show();
+                    else
+                        Toast.makeText(RegisterActivity.this, "作业登记失败！", Toast.LENGTH_SHORT).show();
+                }
+            }
+        });
+
+
+    }
+
+    public boolean onTouchEvent(MotionEvent event) {
+        closeKeyBoard();
+        return super.onTouchEvent(event);
+    }
+
+    public void closeKeyBoard() {
+        if (getCurrentFocus() != null && getCurrentFocus().getWindowToken() != null) {
+            View v = getCurrentFocus();
+            ScreenUtil.closeSoftInput(this, v);
+        }
+    }
+
+    public static void closeSoftInput(Context context, View v) {
+        if (v != null) {
+            InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
+            imm.hideSoftInputFromWindow(v.getWindowToken(), 0);
+        }
+    }
+    
+}

Job_Management/app/src/main/java/com/hong/job_management/ScheduleActivity.java

@@ -0,0 +1,107 @@
+package com.hong.job_management;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ListView;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import java.util.ArrayList;
+import java.util.List;
+import static com.hong.job_management.MainActivity.chinese;
+import static com.hong.job_management.MainActivity.chinese_finish;
+import static com.hong.job_management.MainActivity.biology;
+import static com.hong.job_management.MainActivity.biology_finish;
+import static com.hong.job_management.MainActivity.chemistry;
+import static com.hong.job_management.MainActivity.chemistry_finish;
+import static com.hong.job_management.MainActivity.english;
+import static com.hong.job_management.MainActivity.english_finish;
+import static com.hong.job_management.MainActivity.geography;
+import static com.hong.job_management.MainActivity.geography_finish;
+import static com.hong.job_management.MainActivity.history;
+import static com.hong.job_management.MainActivity.history_finish;
+import static com.hong.job_management.MainActivity.math;
+import static com.hong.job_management.MainActivity.math_finish;
+import static com.hong.job_management.MainActivity.other;
+import static com.hong.job_management.MainActivity.other_finish;
+import static com.hong.job_management.MainActivity.physics;
+import static com.hong.job_management.MainActivity.physics_finish;
+import static com.hong.job_management.MainActivity.politics;
+import static com.hong.job_management.MainActivity.politics_finish;
+import static com.hong.job_management.MainActivity.sum;
+import static com.hong.job_management.MainActivity.sum_finish;
+
+public class ScheduleActivity extends AppCompatActivity {
+    public List<Subject_schedule> subject_schedule=new ArrayList<Subject_schedule>();
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_schedule);
+        final ScheduleActivity thisActivity=this;
+        initSubject_schedule();
+        update_Schedule(subject_schedule);
+        myAdapter_Schedule myAdapter_schedule= new myAdapter_Schedule(ScheduleActivity.this,subject_schedule);
+        ListView listView=(ListView)findViewById(R.id.schedule_list);
+        listView.setAdapter(myAdapter_schedule);
+    }
+    private void initSubject_schedule()
+    {
+        Subject_schedule subject_schedule1= new Subject_schedule("语文");
+        subject_schedule.add(subject_schedule1);
+        Subject_schedule subject_schedule2= new Subject_schedule("数学");
+        subject_schedule.add(subject_schedule2);
+        Subject_schedule subject_schedule3= new Subject_schedule("英语");
+        subject_schedule.add(subject_schedule3);
+        Subject_schedule subject_schedule4= new Subject_schedule("历史");
+        subject_schedule.add(subject_schedule4);
+        Subject_schedule subject_schedule5= new Subject_schedule("地理");
+        subject_schedule.add(subject_schedule5);
+        Subject_schedule subject_schedule6= new Subject_schedule("政治");
+        subject_schedule.add(subject_schedule6);
+        Subject_schedule subject_schedule7= new Subject_schedule("物理");
+        subject_schedule.add(subject_schedule7);
+        Subject_schedule subject_schedule8= new Subject_schedule("化学");
+        subject_schedule.add(subject_schedule8);
+        Subject_schedule subject_schedule9= new Subject_schedule("生物");
+        subject_schedule.add(subject_schedule9);
+        Subject_schedule subject_schedule10= new Subject_schedule("其他");
+        subject_schedule.add(subject_schedule10);
+        Subject_schedule subject_schedule11= new Subject_schedule("总");
+        subject_schedule.add(subject_schedule11);
+    }
+    private void update_Schedule (List <Subject_schedule> subject_schedule)
+    {
+        subject_schedule.get(0).max=chinese;
+        subject_schedule.get(0).progress=chinese_finish;
+        subject_schedule.get(1).max=math;
+        subject_schedule.get(1).progress=math_finish;
+        subject_schedule.get(2).max=english;
+        subject_schedule.get(2).progress=english_finish;
+        subject_schedule.get(3).max=history;
+        subject_schedule.get(3).progress=history_finish;
+        subject_schedule.get(4).max=geography;
+        subject_schedule.get(4).progress=geography_finish;
+        subject_schedule.get(5).max=politics;
+        subject_schedule.get(5).progress=politics_finish;
+        subject_schedule.get(6).max=physics;
+        subject_schedule.get(6).progress=physics_finish;
+        subject_schedule.get(7).max=chemistry;
+        subject_schedule.get(7).progress=chemistry_finish;
+        subject_schedule.get(8).max=biology;
+        subject_schedule.get(8).progress=biology_finish;
+        subject_schedule.get(9).max=other;
+        subject_schedule.get(9).progress=other_finish;
+        subject_schedule.get(10).max=sum;
+        subject_schedule.get(10).progress=sum_finish;
+    }
+}
+
+

Job_Management/app/src/main/java/com/hong/job_management/StatisticsActivity.java

@@ -0,0 +1,152 @@
+package com.hong.job_management;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.graphics.Color;
+import android.os.Bundle;
+
+import com.github.mikephil.charting.animation.Easing;
+import com.github.mikephil.charting.charts.PieChart;
+import com.github.mikephil.charting.components.Legend;
+import com.github.mikephil.charting.data.PieData;
+import com.github.mikephil.charting.data.PieDataSet;
+import com.github.mikephil.charting.data.PieEntry;
+import com.github.mikephil.charting.formatter.PercentFormatter;
+import com.github.mikephil.charting.utils.ColorTemplate;
+
+import java.util.ArrayList;
+
+import static com.hong.job_management.MainActivity.chinese;
+import static com.hong.job_management.MainActivity.chinese_finish;
+import static com.hong.job_management.MainActivity.biology;
+import static com.hong.job_management.MainActivity.biology_finish;
+import static com.hong.job_management.MainActivity.chemistry;
+import static com.hong.job_management.MainActivity.chemistry_finish;
+import static com.hong.job_management.MainActivity.english;
+import static com.hong.job_management.MainActivity.english_finish;
+import static com.hong.job_management.MainActivity.geography;
+import static com.hong.job_management.MainActivity.geography_finish;
+import static com.hong.job_management.MainActivity.history;
+import static com.hong.job_management.MainActivity.history_finish;
+import static com.hong.job_management.MainActivity.math;
+import static com.hong.job_management.MainActivity.math_finish;
+import static com.hong.job_management.MainActivity.other;
+import static com.hong.job_management.MainActivity.other_finish;
+import static com.hong.job_management.MainActivity.physics;
+import static com.hong.job_management.MainActivity.physics_finish;
+import static com.hong.job_management.MainActivity.politics;
+import static com.hong.job_management.MainActivity.politics_finish;
+import static com.hong.job_management.MainActivity.sum;
+import static com.hong.job_management.MainActivity.sum_finish;
+
+public class StatisticsActivity extends AppCompatActivity {
+
+    private PieChart pic_chart;
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_statistics);
+        initView();
+    }
+
+    private void initView(){
+        pic_chart = (PieChart) findViewById(R.id.pic_chart);
+        pic_chart.setUsePercentValues(true);//设置为显示百分比
+        pic_chart.getDescription().setEnabled(false);//设置pieChart图表的描述
+        pic_chart.setExtraOffsets(5,0,5,5);//设置pieChart图表上下左右的偏移，类似于外边距
+        pic_chart.setDragDecelerationFrictionCoef(0.95f);//设置pieChart图表转动阻力摩擦系数[0,1]
+        pic_chart.animateY(1400, Easing.EasingOption.EaseInOutBack);//设置pieChart图表展示动画效果
+
+        //设置圆环内部属性
+        pic_chart.setDrawCenterText(true);//是否绘制PieChart内部中心文本（true：下面属性才有意义）
+        pic_chart.setCenterText("作业统计");//设置PieChart内部圆文字的内容
+        pic_chart.setCenterTextSize(27);
+        //pic_chart.setCenterTextTypeface(Typeface.defaultFromStyle(Typeface.BOLD));//设置PieChart内部圆文字的字体样式
+        pic_chart.setDrawHoleEnabled(true);//是否显示PieChart内部圆环(true:下面属性才有意义)
+        pic_chart.setHoleColor(Color.WHITE);//设置PieChart内部圆的颜色
+        pic_chart.setTransparentCircleColor(Color.WHITE);//设置PieChart内部透明圆与内部圆间距的填充颜色
+        pic_chart.setTransparentCircleAlpha(110);//设置PieChart内部透明圆与内部圆间距透明度[0~255]数值越小越透明
+        pic_chart.setHoleRadius(58f);//设置PieChart内部圆的半径
+        pic_chart.setTransparentCircleRadius(61f);//设置PieChart内部透明圆的半径
+
+        pic_chart.setRotationAngle(0);//设置pieChart图表起始角度
+        // 触摸旋转
+        pic_chart.setRotationEnabled(true);//设置pieChart图表是否可以手动旋转
+        pic_chart.setHighlightPerTapEnabled(true);//设置pieChart图表点击Item高亮是否可用
+
+        //模拟数据
+        ArrayList<PieEntry> entries = new ArrayList<PieEntry>();
+        entries.clear();
+        PieEntry pieEntry =new PieEntry(3,"模板");
+        if(chinese!=0)
+            entries.add(new PieEntry(chinese,"语文"));
+        if(math!=0)
+            entries.add(new PieEntry(math, "数学"));
+        if(english!=0)
+            entries.add(new PieEntry(english, "英语"));
+        if(biology!=0)
+            entries.add(new PieEntry(biology, "生物"));
+        if(chemistry!=0)
+            entries.add(new PieEntry(chemistry, "化学"));
+        if(physics!=0)
+            entries.add(new PieEntry(physics, "物理"));
+        if(history!=0)
+            entries.add(new PieEntry(history, "历史"));
+        if(politics!=0)
+            entries.add(new PieEntry(politics, "政治"));
+        if(geography!=0)
+            entries.add(new PieEntry(geography, "地理"));
+        if(other!=0)
+        entries.add(new PieEntry(other, "其他"));
+
+        //pieEntry.setData(10); //重复传入同个科目时重新设置其值
+        //pieEntry.setLabel("chensh");
+        //entries.set(0,pieEntry);
+
+        //设置数据
+        setDate(entries);
+
+        // 获取pieChart图列
+        Legend l=pic_chart.getLegend();
+        l.setVerticalAlignment(Legend.LegendVerticalAlignment.TOP);
+        l.setHorizontalAlignment(Legend.LegendHorizontalAlignment.RIGHT);
+        l.setOrientation(Legend.LegendOrientation.VERTICAL);
+        l.setDrawInside(false);
+        l.setXEntrySpace(7f);
+        l.setYEntrySpace(0f);
+        l.setYOffset(0f);
+
+        // 输入标签样式
+        pic_chart.setEntryLabelColor(Color.WHITE);
+        pic_chart.setEntryLabelTextSize(16f);
+    }
+
+    private void setDate(ArrayList<PieEntry> entries) {
+        PieDataSet dataSet = new PieDataSet(entries, "科目类别");
+        dataSet.setSliceSpace(3f);
+        dataSet.setSelectionShift(5f);
+
+        //数据和颜色
+        ArrayList<Integer> colors = new ArrayList<Integer>();
+        for (int c : ColorTemplate.VORDIPLOM_COLORS)
+            colors.add(c);
+        for (int c : ColorTemplate.JOYFUL_COLORS)
+            colors.add(c);
+        for (int c : ColorTemplate.COLORFUL_COLORS)
+            colors.add(c);
+        for (int c : ColorTemplate.LIBERTY_COLORS)
+            colors.add(c);
+        for (int c : ColorTemplate.PASTEL_COLORS)
+            colors.add(c);
+        colors.add(ColorTemplate.getHoloBlue());
+        dataSet.setColors(colors);
+        PieData data = new PieData(dataSet);
+        data.setValueFormatter(new PercentFormatter());
+        data.setValueTextSize(14f);
+        data.setValueTextColor(Color.WHITE);
+        pic_chart.setData(data);
+        pic_chart.highlightValues(null);
+        //刷新
+        pic_chart.invalidate();
+    }
+}

Job_Management/app/src/main/java/com/hong/job_management/Subject_schedule.java

@@ -0,0 +1,47 @@
+package com.hong.job_management;
+
+public class Subject_schedule {
+    private String subject;//用来放科目的
+    public int max=0;//用来放科目总共的进度
+    public int progress=0;//用来放已经完成进度
+
+    public Subject_schedule(String subject) {
+        this.subject = subject;
+    }
+
+    public String getSubject() {
+
+        return subject;
+    }
+
+    public void setSubject(String subject) {
+
+        this.subject = subject;
+    }
+
+    public int getMax() {
+
+        return max;
+    }
+
+    public void setMax(int max) {
+
+        this.max = max;
+    }
+
+    public int getProgress() {
+
+        return progress;
+    }
+
+    public void setProgress(int progress) {
+
+        this.progress= progress;
+    }
+
+}
+
+
+
+
+

Job_Management/app/src/main/java/com/hong/job_management/myAdapter_Homework.java

@@ -0,0 +1,88 @@
+package com.hong.job_management;
+
+import android.app.Activity;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.BaseAdapter;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.util.List;
+
+public class myAdapter_Homework extends BaseAdapter {
+    private Activity mContext;
+    private LayoutInflater mInflater;
+    private List<Homework> mDatas;
+    private class ViewHolder{
+        private TextView homework_name;
+        private TextView homework_subject;
+        private TextView homework_time;
+        private TextView homework_rank;
+        private TextView homework_finish;
+    }
+
+    @Override
+    public int getItemViewType(int position) {
+        int Isfinish=mDatas.get(position).isfinish;
+        if(Isfinish==1){
+            return 1;
+        }else{
+            return 0;
+        }
+    }
+
+    public myAdapter_Homework(Activity context , List<Homework> data) {
+        mContext=context;
+        mDatas=data;
+        mInflater=LayoutInflater.from(mContext);
+    }
+
+    @Override
+    public int getCount() {
+        return (mDatas != null ? mDatas.size() : 0);
+    }
+
+    @Override
+    public Object getItem(int position) {
+        return (mDatas != null ? mDatas.get(position) : null);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @NonNull
+    @Override
+    public View getView(final int position, @Nullable View convertView, @NonNull ViewGroup parent) {
+        ViewHolder viewHolder=null;
+        if(convertView == null){
+            convertView =mInflater.inflate(R.layout.homework_item,null);
+            viewHolder =new ViewHolder();
+            viewHolder.homework_name=(TextView)convertView.findViewById(R.id.homework_name);
+            viewHolder.homework_subject=(TextView)convertView.findViewById(R.id.homework_subject);
+            viewHolder.homework_rank=(TextView)convertView.findViewById(R.id.homework_rank);
+            viewHolder.homework_time=(TextView)convertView.findViewById(R.id.homework_time);
+            viewHolder.homework_finish=(TextView)convertView.findViewById(R.id.homework_finish);
+            convertView.setTag(viewHolder);
+        } else {
+            viewHolder =(ViewHolder)convertView.getTag();
+        }
+        Homework homework= (Homework) getItem(position);
+        viewHolder.homework_name.setText(homework.getHomework_name());
+        viewHolder.homework_subject.setText(homework.getHomework_subject());
+        viewHolder.homework_rank.setText(homework.getHomework_rank());
+        viewHolder.homework_time.setText(homework.getHomework_time());
+        if(homework.isfinish==0)
+        {
+            viewHolder.homework_finish.setText("×");
+        }else{
+            viewHolder.homework_finish.setText("√");
+        }
+        return convertView;
+    }
+
+}

Job_Management/app/src/main/java/com/hong/job_management/myAdapter_Schedule.java

@@ -0,0 +1,69 @@
+package com.hong.job_management;
+
+import android.app.Activity;
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.BaseAdapter;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import java.util.List;
+
+class myAdapter_Schedule extends BaseAdapter {
+    private Activity mContext;
+    private LayoutInflater mInflater;
+    private List<Subject_schedule> mDatas;
+    private class ViewHolder{
+        private TextView subject_name;
+        private TextView subject_value;
+        private ProgressBar subject_progress;
+    }
+
+    public myAdapter_Schedule(Activity context ,List<Subject_schedule> data){
+        mContext=context;
+        mDatas=data;
+        mInflater=LayoutInflater.from(mContext);
+    }
+
+    @Override
+    public int getCount() {
+        return (mDatas != null ? mDatas.size() : 0);
+    }
+    @Override
+    public Object getItem(int position) {
+        return (mDatas != null ? mDatas.get(position) : null);
+    }
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @NonNull
+    @Override
+    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
+        ViewHolder viewHolder=null;
+        if(convertView==null)
+        {
+            convertView =mInflater.inflate(R.layout.schedule_item,null);
+            viewHolder=new ViewHolder();
+            viewHolder.subject_name=(TextView) convertView.findViewById(R.id.subject_name);
+            viewHolder.subject_value=(TextView)convertView.findViewById(R.id.subject_value);
+            viewHolder.subject_progress=(ProgressBar)convertView.findViewById((R.id.subject_progress));
+            convertView.setTag(viewHolder);
+        }else{
+            viewHolder=(ViewHolder) convertView.getTag();
+        }
+        Subject_schedule subject_schedule=(Subject_schedule) getItem(position);
+        viewHolder.subject_name.setText(subject_schedule.getSubject());
+        viewHolder.subject_progress.setMax(subject_schedule.getMax());
+        viewHolder.subject_progress.setProgress(subject_schedule.getProgress());
+        viewHolder.subject_value.setText(String.valueOf((int)(((float)subject_schedule.getProgress()/(float)subject_schedule.getMax())*1000)/10.0+"%"));
+        return convertView;
+    }
+}

Job_Management/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

Job_Management/app/src/main/res/drawable/add_circle.xml

@@ -0,0 +1,10 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="?attr/colorControlNormal">
+  <path
+      android:fillColor="@android:color/white"
+      android:pathData="M13,7h-2v4L7,11v2h4v4h2v-4h4v-2h-4L13,7zM12,2C6.48,2 2,6.48 2,12s4.48,10 10,10 10,-4.48 10,-10S17.52,2 12,2zM12,20c-4.41,0 -8,-3.59 -8,-8s3.59,-8 8,-8 8,3.59 8,8 -3.59,8 -8,8z"/>
+</vector>

Job_Management/app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
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+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
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+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
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+        android:fillColor="#00000000"
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+        android:fillColor="#00000000"
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+    <path
+        android:fillColor="#00000000"
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+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
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+        android:fillColor="#00000000"
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+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
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+        android:fillColor="#00000000"
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+        android:fillColor="#00000000"
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+        android:strokeWidth="0.8"
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+        android:fillColor="#00000000"
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+        android:fillColor="#00000000"
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+    <path
+        android:fillColor="#00000000"
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+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
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+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
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+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
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+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

Job_Management/app/src/main/res/layout/activity_main.xml

@@ -0,0 +1,93 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity"
+    android:id="@+id/main_layout"
+    android:background="@drawable/a"
+  >
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="60dp"
+        android:background="#9F55A6A5">
+        <TextView
+            android:id="@+id/temp"
+            android:layout_width="wrap_content"
+            android:layout_height="60dp"
+            android:text="36.7℃"
+            android:textColor="@color/white"
+            android:textSize="20dp"
+            android:layout_marginLeft="20dp">
+
+        </TextView>
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="60dp"
+            android:text="作业管理"
+            android:textSize="22sp"
+            android:gravity="center_vertical"
+            android:textColor="@color/white"
+            android:layout_marginLeft="90dp">
+        </TextView>
+        <ImageView
+            android:id="@+id/change_background"
+            android:layout_width="30dp"
+            android:layout_height="match_parent"
+            android:layout_marginLeft="110dp"
+            android:src="@drawable/add_circle" />
+    </LinearLayout>
+
+
+    <com.baoyz.swipemenulistview.SwipeMenuListView
+        android:id="@+id/homework_list"
+        android:layout_width="match_parent"
+        android:layout_height="540dp"
+        android:layout_marginTop="60dp">
+
+    </com.baoyz.swipemenulistview.SwipeMenuListView>
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:orientation="horizontal">
+
+        <Button
+            android:id="@+id/btn_dj"
+            android:layout_width="205dp"
+            android:layout_height="60dp"
+            android:layout_weight="1"
+            android:textColor="@color/white"
+            android:text="@string/Register"
+            android:textSize="20sp"
+            android:background="#5955A6A5"
+            />
+
+        <Button
+            android:id="@+id/btn_jd"
+            android:layout_width="205dp"
+            android:layout_height="60dp"
+            android:layout_weight="1"
+            android:text="@string/Schedule"
+            android:textColor="@color/white"
+            android:textSize="20sp"
+            android:background="#5955A6A5"
+            />
+
+        <Button
+            android:id="@+id/btn_tj"
+            android:layout_width="205dp"
+            android:layout_height="60dp"
+            android:layout_weight="1"
+            android:text="@string/Statistics"
+            android:textColor="@color/white"
+            android:textSize="20sp"
+            android:background="#5955A6A5"
+            />
+    </LinearLayout>
+
+
+</RelativeLayout>

Job_Management/app/src/main/res/layout/activity_register.xml

@@ -0,0 +1,107 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".RegisterActivity">
+
+<!--    <ImageView-->
+<!--        android:layout_width="match_parent"-->
+<!--        android:layout_height="match_parent"-->
+<!--        android:background="@drawable/a3">-->
+<!--    </ImageView>-->
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="60dp"
+        android:text="@string/Register"
+        android:textSize="22sp"
+        android:textColor="@color/white"
+        android:gravity="center"
+        android:background="#D555A6A5">
+    </TextView>
+
+    <LinearLayout
+        android:id="@+id/homework_register"
+        android:layout_width="match_parent"
+        android:layout_height="70dp"
+        android:layout_marginTop="65dp"
+        android:orientation="horizontal"
+        >
+        <Spinner
+            android:id="@+id/subject"
+            android:layout_width="100dp"
+            android:layout_height="70dp"
+            android:layout_marginLeft="3dp"
+            android:entries="@array/subjects"
+            android:spinnerMode="dialog"
+            android:gravity="center"
+            android:layout_marginStart="3dp">
+        </Spinner>
+
+        <EditText
+            android:id="@+id/name"
+            android:layout_width="280dp"
+            android:layout_height="70dp"
+            android:layout_marginLeft="15dp"
+            android:hint="作业名称"
+            android:singleLine="true"
+            android:textSize="24sp"
+            />
+
+    </LinearLayout>
+
+    <TextView
+        android:layout_width="130dp"
+        android:layout_height="40dp"
+        android:layout_below="@id/homework_register"
+        android:layout_marginTop="40dp"
+        android:layout_marginLeft="10dp"
+        android:text="截止时间 :"
+        android:textColor="@color/black"
+        android:textSize="21sp"
+        android:layout_marginStart="10dp">
+
+    </TextView>
+    <Spinner
+        android:id="@+id/rank"
+        android:layout_width="100dp"
+        android:layout_height="70dp"
+        android:layout_marginLeft="5dp"
+        android:entries="@array/rank"
+        android:spinnerMode="dialog"
+        android:layout_marginTop="100dp"
+        android:layout_below="@id/homework_register"
+        android:layout_marginStart="5dp">
+
+    </Spinner>
+
+    <DatePicker
+        android:id="@+id/time"
+        android:layout_width="270dp"
+        android:layout_height="150dp"
+        android:layout_marginTop="120dp"
+        android:layout_marginLeft="120dp"
+        android:datePickerMode="spinner"
+        android:calendarViewShown="false"
+        android:startYear="2021"
+        >
+
+    </DatePicker>
+
+    <Button
+        android:id="@+id/btn_homework_dj"
+        android:layout_width="125dp"
+        android:layout_height="55dp"
+        android:layout_marginTop="300dp"
+        android:text="@string/Register"
+        android:textColor="@color/white"
+        android:textSize="20dp"
+        android:background="#A5329D91"
+        android:layout_marginLeft="260dp">
+
+    </Button>
+
+
+</RelativeLayout>

Job_Management/app/src/main/res/layout/activity_schedule.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ScheduleActivity">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="60dp"
+        android:text="@string/Schedule"
+        android:textSize="22dp"
+        android:textColor="@color/white"
+        android:gravity="center"
+        android:background="#D555A6A5">
+    </TextView>
+
+    <ListView
+        android:id="@+id/schedule_list"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="60dp"
+        android:entries="@array/subjects">
+    </ListView>
+
+
+
+</RelativeLayout>

Job_Management/app/src/main/res/layout/activity_statistics.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ScheduleActivity">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="60dp"
+        android:text="@string/Statistics"
+        android:textSize="22dp"
+        android:textColor="@color/white"
+        android:gravity="center"
+        android:background="#D555A6A5">
+    </TextView>
+
+    <com.github.mikephil.charting.charts.PieChart
+        android:layout_height="match_parent"
+        android:layout_width="match_parent"
+        android:layout_marginTop="60dp"
+        android:id="@+id/pic_chart">
+    </com.github.mikephil.charting.charts.PieChart>
+
+
+</RelativeLayout>

Job_Management/app/src/main/res/layout/homework_item.xml

@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="horizontal">
+    <TextView
+        android:id="@+id/homework_finish"
+        android:layout_width="40dp"
+        android:layout_height="60dp"
+        android:gravity="center"
+        android:text="√"
+        android:textSize="21sp"
+        android:textColor="@color/black">
+    </TextView>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical">
+
+    <TextView
+        android:id="@+id/homework_name"
+        android:layout_width="match_parent"
+        android:layout_height="29dp"
+        android:text="作业名称作业名称作业"
+        android:textSize="21sp"
+        android:textColor="@color/black">
+    </TextView>
+
+    <LinearLayout
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+        <TextView
+            android:id="@+id/homework_subject"
+            android:layout_width="60dp"
+            android:layout_height="wrap_content"
+            android:text="科目"
+            android:textSize="19sp">
+        </TextView>
+        <TextView
+            android:id="@+id/homework_rank"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:text="难度"
+            android:textSize="17sp">
+        </TextView>
+        <TextView
+            android:id="@+id/homework_time"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginLeft="160dp"
+            android:text="2021.06.14"
+            android:textSize="20sp"
+            android:layout_marginStart="160dp">
+        </TextView>
+
+    </LinearLayout>
+    <com.baoyz.swipemenulistview.SwipeMenuListView
+        android:id="@+id/collector_listview"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:divider="#00000000"
+        android:dividerHeight="1dp"
+        android:fadingEdge="none"
+        android:fastScrollEnabled="false"
+        android:smoothScrollbar="true">
+    </com.baoyz.swipemenulistview.SwipeMenuListView>
+
+    </LinearLayout>
+
+
+</LinearLayout>

Job_Management/app/src/main/res/layout/schedule_item.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="horizontal">
+
+    <TextView
+        android:id="@+id/subject_name"
+        android:layout_width="65dp"
+        android:layout_height="50dp"
+        android:text="科目"
+        android:gravity="center"
+        android:textSize="21dp"
+        android:textColor="@color/black">
+    </TextView>
+
+    <ProgressBar
+        android:id="@+id/subject_progress"
+        style="@style/Widget.AppCompat.ProgressBar.Horizontal"
+        android:layout_width="260dp"
+        android:layout_height="50dp"
+        android:max="10"
+        android:progress="5"
+        android:indeterminateTintMode="src_atop"
+        android:indeterminateTint="@color/white">
+    </ProgressBar>
+
+    <TextView
+        android:id="@+id/subject_value"
+        android:layout_width="90dp"
+        android:layout_height="50dp"
+        android:text="30%"
+        android:gravity="center"
+        android:textSize="20dp"
+        android:textColor="@color/black">
+
+    </TextView>
+
+</LinearLayout>

Job_Management/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

Job_Management/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

Job_Management/app/src/main/res/values-night/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.Job_Management" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

Job_Management/app/src/main/res/values/arrays.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string-array name="subjects">
+        <item>科目</item>
+        <item>语文</item>
+        <item>数学</item>
+        <item>英语</item>
+        <item>历史</item>
+        <item>地理</item>
+        <item>政治</item>
+        <item>物理</item>
+        <item>化学</item>
+        <item>生物</item>
+        <item>其他</item>
+    </string-array>
+
+
+    <string-array name="rank">
+        <item>难度</item>
+        <item>简单</item>
+        <item>中等</item>
+        <item>困难</item>
+    </string-array>
+
+    
+    
+</resources>

Job_Management/app/src/main/res/values/colors.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>

Job_Management/app/src/main/res/values/strings.xml

@@ -0,0 +1,6 @@
+<resources>
+    <string name="app_name">Job_Management</string>
+    <string name="Register">登记</string>
+    <string name="Schedule">进度</string>
+    <string name="Statistics">统计</string>
+</resources>

Job_Management/app/src/main/res/values/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.Job_Management" parent="Theme.MaterialComponents.DayNight.NoActionBar.Bridge">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/teal_700</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

Job_Management/app/src/test/java/com/hong/job_management/ExampleUnitTest.java

@@ -0,0 +1,17 @@
+package com.hong.job_management;
+
+import org.junit.Test;
+
+import static org.junit.Assert.*;
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+public class ExampleUnitTest {
+    @Test
+    public void addition_isCorrect() {
+        assertEquals(4, 2 + 2);
+    }
+}

Job_Management/build.gradle

@@ -0,0 +1,24 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+buildscript {
+    repositories {
+        google()
+        jcenter()
+    }
+    dependencies {
+        classpath "com.android.tools.build:gradle:4.1.3"
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        maven { url "https://jitpack.io" }
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

Job_Management/gradle.properties

@@ -0,0 +1,19 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app"s APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Automatically convert third-party libraries to use AndroidX
+android.enableJetifier=true

Job_Management/gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Sun Apr 11 19:05:04 CST 2021
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-bin.zip

Job_Management/gradlew

@@ -0,0 +1,172 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS=""
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=$((i+1))
+    done
+    case $i in
+        (0) set -- ;;
+        (1) set -- "$args0" ;;
+        (2) set -- "$args0" "$args1" ;;
+        (3) set -- "$args0" "$args1" "$args2" ;;
+        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=$(save "$@")
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
+if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
+  cd "$(dirname "$0")"
+fi
+
+exec "$JAVACMD" "$@"

Job_Management/gradlew.bat

@@ -0,0 +1,84 @@
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS=
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto init
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto init
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:init
+@rem Get command-line arguments, handling Windows variants
+
+if not "%OS%" == "Windows_NT" goto win9xME_args
+
+:win9xME_args
+@rem Slurp the command line arguments.
+set CMD_LINE_ARGS=
+set _SKIP=2
+
+:win9xME_args_slurp
+if "x%~1" == "x" goto execute
+
+set CMD_LINE_ARGS=%*
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

Job_Management/settings.gradle

@@ -0,0 +1,2 @@
+include ':app'
+rootProject.name = "Job_Management"

spring-boot-usejpa/.gitignore

@@ -0,0 +1,33 @@
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

spring-boot-usejpa/.mvn/wrapper/MavenWrapperDownloader.java

@@ -0,0 +1,118 @@
+/*
+ * Copyright 2007-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import java.net.*;
+import java.io.*;
+import java.nio.channels.*;
+import java.util.Properties;
+
+public class MavenWrapperDownloader {
+
+    private static final String WRAPPER_VERSION = "0.5.6";
+    /**
+     * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
+     */
+    private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/"
+            + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar";
+
+    /**
+     * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
+     * use instead of the default one.
+     */
+    private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
+            ".mvn/wrapper/maven-wrapper.properties";
+
+    /**
+     * Path where the maven-wrapper.jar will be saved to.
+     */
+    private static final String MAVEN_WRAPPER_JAR_PATH =
+            ".mvn/wrapper/maven-wrapper.jar";
+
+    /**
+     * Name of the property which should be used to override the default download url for the wrapper.
+     */
+    private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
+
+    public static void main(String args[]) {
+        System.out.println("- Downloader started");
+        File baseDirectory = new File(args[0]);
+        System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
+
+        // If the maven-wrapper.properties exists, read it and check if it contains a custom
+        // wrapperUrl parameter.
+        File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
+        String url = DEFAULT_DOWNLOAD_URL;
+        if (mavenWrapperPropertyFile.exists()) {
+            FileInputStream mavenWrapperPropertyFileInputStream = null;
+            try {
+                mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
+                Properties mavenWrapperProperties = new Properties();
+                mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
+                url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
+            } catch (IOException e) {
+                System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
+            } finally {
+                try {
+                    if (mavenWrapperPropertyFileInputStream != null) {
+                        mavenWrapperPropertyFileInputStream.close();
+                    }
+                } catch (IOException e) {
+                    // Ignore ...
+                }
+            }
+        }
+        System.out.println("- Downloading from: " + url);
+
+        File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
+        if (!outputFile.getParentFile().exists()) {
+            if (!outputFile.getParentFile().mkdirs()) {
+                System.out.println(
+                        "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'");
+            }
+        }
+        System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
+        try {
+            downloadFileFromURL(url, outputFile);
+            System.out.println("Done");
+            System.exit(0);
+        } catch (Throwable e) {
+            System.out.println("- Error downloading");
+            e.printStackTrace();
+            System.exit(1);
+        }
+    }
+
+    private static void downloadFileFromURL(String urlString, File destination) throws Exception {
+        if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
+            String username = System.getenv("MVNW_USERNAME");
+            char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
+            Authenticator.setDefault(new Authenticator() {
+                @Override
+                protected PasswordAuthentication getPasswordAuthentication() {
+                    return new PasswordAuthentication(username, password);
+                }
+            });
+        }
+        URL website = new URL(urlString);
+        ReadableByteChannel rbc;
+        rbc = Channels.newChannel(website.openStream());
+        FileOutputStream fos = new FileOutputStream(destination);
+        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
+        fos.close();
+        rbc.close();
+    }
+
+}

spring-boot-usejpa/.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,2 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.8.2/apache-maven-3.8.2-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

spring-boot-usejpa/mvnw

@@ -0,0 +1,310 @@
+#!/bin/sh
+# ----------------------------------------------------------------------------
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+# ----------------------------------------------------------------------------
+
+# ----------------------------------------------------------------------------
+# Maven Start Up Batch script
+#
+# Required ENV vars:
+# ------------------
+#   JAVA_HOME - location of a JDK home dir
+#
+# Optional ENV vars
+# -----------------
+#   M2_HOME - location of maven2's installed home dir
+#   MAVEN_OPTS - parameters passed to the Java VM when running Maven
+#     e.g. to debug Maven itself, use
+#       set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+#   MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+# ----------------------------------------------------------------------------
+
+if [ -z "$MAVEN_SKIP_RC" ] ; then
+
+  if [ -f /etc/mavenrc ] ; then
+    . /etc/mavenrc
+  fi
+
+  if [ -f "$HOME/.mavenrc" ] ; then
+    . "$HOME/.mavenrc"
+  fi
+
+fi
+
+# OS specific support.  $var _must_ be set to either true or false.
+cygwin=false;
+darwin=false;
+mingw=false
+case "`uname`" in
+  CYGWIN*) cygwin=true ;;
+  MINGW*) mingw=true;;
+  Darwin*) darwin=true
+    # Use /usr/libexec/java_home if available, otherwise fall back to /Library/Java/Home
+    # See https://developer.apple.com/library/mac/qa/qa1170/_index.html
+    if [ -z "$JAVA_HOME" ]; then
+      if [ -x "/usr/libexec/java_home" ]; then
+        export JAVA_HOME="`/usr/libexec/java_home`"
+      else
+        export JAVA_HOME="/Library/Java/Home"
+      fi
+    fi
+    ;;
+esac
+
+if [ -z "$JAVA_HOME" ] ; then
+  if [ -r /etc/gentoo-release ] ; then
+    JAVA_HOME=`java-config --jre-home`
+  fi
+fi
+
+if [ -z "$M2_HOME" ] ; then
+  ## resolve links - $0 may be a link to maven's home
+  PRG="$0"
+
+  # need this for relative symlinks
+  while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+      PRG="$link"
+    else
+      PRG="`dirname "$PRG"`/$link"
+    fi
+  done
+
+  saveddir=`pwd`
+
+  M2_HOME=`dirname "$PRG"`/..
+
+  # make it fully qualified
+  M2_HOME=`cd "$M2_HOME" && pwd`
+
+  cd "$saveddir"
+  # echo Using m2 at $M2_HOME
+fi
+
+# For Cygwin, ensure paths are in UNIX format before anything is touched
+if $cygwin ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --unix "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --unix "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --unix "$CLASSPATH"`
+fi
+
+# For Mingw, ensure paths are in UNIX format before anything is touched
+if $mingw ; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME="`(cd "$M2_HOME"; pwd)`"
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME="`(cd "$JAVA_HOME"; pwd)`"
+fi
+
+if [ -z "$JAVA_HOME" ]; then
+  javaExecutable="`which javac`"
+  if [ -n "$javaExecutable" ] && ! [ "`expr \"$javaExecutable\" : '\([^ ]*\)'`" = "no" ]; then
+    # readlink(1) is not available as standard on Solaris 10.
+    readLink=`which readlink`
+    if [ ! `expr "$readLink" : '\([^ ]*\)'` = "no" ]; then
+      if $darwin ; then
+        javaHome="`dirname \"$javaExecutable\"`"
+        javaExecutable="`cd \"$javaHome\" && pwd -P`/javac"
+      else
+        javaExecutable="`readlink -f \"$javaExecutable\"`"
+      fi
+      javaHome="`dirname \"$javaExecutable\"`"
+      javaHome=`expr "$javaHome" : '\(.*\)/bin'`
+      JAVA_HOME="$javaHome"
+      export JAVA_HOME
+    fi
+  fi
+fi
+
+if [ -z "$JAVACMD" ] ; then
+  if [ -n "$JAVA_HOME"  ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+      # IBM's JDK on AIX uses strange locations for the executables
+      JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+      JAVACMD="$JAVA_HOME/bin/java"
+    fi
+  else
+    JAVACMD="`which java`"
+  fi
+fi
+
+if [ ! -x "$JAVACMD" ] ; then
+  echo "Error: JAVA_HOME is not defined correctly." >&2
+  echo "  We cannot execute $JAVACMD" >&2
+  exit 1
+fi
+
+if [ -z "$JAVA_HOME" ] ; then
+  echo "Warning: JAVA_HOME environment variable is not set."
+fi
+
+CLASSWORLDS_LAUNCHER=org.codehaus.plexus.classworlds.launcher.Launcher
+
+# traverses directory structure from process work directory to filesystem root
+# first directory with .mvn subdirectory is considered project base directory
+find_maven_basedir() {
+
+  if [ -z "$1" ]
+  then
+    echo "Path not specified to find_maven_basedir"
+    return 1
+  fi
+
+  basedir="$1"
+  wdir="$1"
+  while [ "$wdir" != '/' ] ; do
+    if [ -d "$wdir"/.mvn ] ; then
+      basedir=$wdir
+      break
+    fi
+    # workaround for JBEAP-8937 (on Solaris 10/Sparc)
+    if [ -d "${wdir}" ]; then
+      wdir=`cd "$wdir/.."; pwd`
+    fi
+    # end of workaround
+  done
+  echo "${basedir}"
+}
+
+# concatenates all lines of a file
+concat_lines() {
+  if [ -f "$1" ]; then
+    echo "$(tr -s '\n' ' ' < "$1")"
+  fi
+}
+
+BASE_DIR=`find_maven_basedir "$(pwd)"`
+if [ -z "$BASE_DIR" ]; then
+  exit 1;
+fi
+
+##########################################################################################
+# Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+# This allows using the maven wrapper in projects that prohibit checking in binary data.
+##########################################################################################
+if [ -r "$BASE_DIR/.mvn/wrapper/maven-wrapper.jar" ]; then
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Found .mvn/wrapper/maven-wrapper.jar"
+    fi
+else
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Couldn't find .mvn/wrapper/maven-wrapper.jar, downloading it ..."
+    fi
+    if [ -n "$MVNW_REPOURL" ]; then
+      jarUrl="$MVNW_REPOURL/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    else
+      jarUrl="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    fi
+    while IFS="=" read key value; do
+      case "$key" in (wrapperUrl) jarUrl="$value"; break ;;
+      esac
+    done < "$BASE_DIR/.mvn/wrapper/maven-wrapper.properties"
+    if [ "$MVNW_VERBOSE" = true ]; then
+      echo "Downloading from: $jarUrl"
+    fi
+    wrapperJarPath="$BASE_DIR/.mvn/wrapper/maven-wrapper.jar"
+    if $cygwin; then
+      wrapperJarPath=`cygpath --path --windows "$wrapperJarPath"`
+    fi
+
+    if command -v wget > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found wget ... using wget"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            wget "$jarUrl" -O "$wrapperJarPath"
+        else
+            wget --http-user=$MVNW_USERNAME --http-password=$MVNW_PASSWORD "$jarUrl" -O "$wrapperJarPath"
+        fi
+    elif command -v curl > /dev/null; then
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Found curl ... using curl"
+        fi
+        if [ -z "$MVNW_USERNAME" ] || [ -z "$MVNW_PASSWORD" ]; then
+            curl -o "$wrapperJarPath" "$jarUrl" -f
+        else
+            curl --user $MVNW_USERNAME:$MVNW_PASSWORD -o "$wrapperJarPath" "$jarUrl" -f
+        fi
+
+    else
+        if [ "$MVNW_VERBOSE" = true ]; then
+          echo "Falling back to using Java to download"
+        fi
+        javaClass="$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.java"
+        # For Cygwin, switch paths to Windows format before running javac
+        if $cygwin; then
+          javaClass=`cygpath --path --windows "$javaClass"`
+        fi
+        if [ -e "$javaClass" ]; then
+            if [ ! -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Compiling MavenWrapperDownloader.java ..."
+                fi
+                # Compiling the Java class
+                ("$JAVA_HOME/bin/javac" "$javaClass")
+            fi
+            if [ -e "$BASE_DIR/.mvn/wrapper/MavenWrapperDownloader.class" ]; then
+                # Running the downloader
+                if [ "$MVNW_VERBOSE" = true ]; then
+                  echo " - Running MavenWrapperDownloader.java ..."
+                fi
+                ("$JAVA_HOME/bin/java" -cp .mvn/wrapper MavenWrapperDownloader "$MAVEN_PROJECTBASEDIR")
+            fi
+        fi
+    fi
+fi
+##########################################################################################
+# End of extension
+##########################################################################################
+
+export MAVEN_PROJECTBASEDIR=${MAVEN_BASEDIR:-"$BASE_DIR"}
+if [ "$MVNW_VERBOSE" = true ]; then
+  echo $MAVEN_PROJECTBASEDIR
+fi
+MAVEN_OPTS="$(concat_lines "$MAVEN_PROJECTBASEDIR/.mvn/jvm.config") $MAVEN_OPTS"
+
+# For Cygwin, switch paths to Windows format before running java
+if $cygwin; then
+  [ -n "$M2_HOME" ] &&
+    M2_HOME=`cygpath --path --windows "$M2_HOME"`
+  [ -n "$JAVA_HOME" ] &&
+    JAVA_HOME=`cygpath --path --windows "$JAVA_HOME"`
+  [ -n "$CLASSPATH" ] &&
+    CLASSPATH=`cygpath --path --windows "$CLASSPATH"`
+  [ -n "$MAVEN_PROJECTBASEDIR" ] &&
+    MAVEN_PROJECTBASEDIR=`cygpath --path --windows "$MAVEN_PROJECTBASEDIR"`
+fi
+
+# Provide a "standardized" way to retrieve the CLI args that will
+# work with both Windows and non-Windows executions.
+MAVEN_CMD_LINE_ARGS="$MAVEN_CONFIG $@"
+export MAVEN_CMD_LINE_ARGS
+
+WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+exec "$JAVACMD" \
+  $MAVEN_OPTS \
+  -classpath "$MAVEN_PROJECTBASEDIR/.mvn/wrapper/maven-wrapper.jar" \
+  "-Dmaven.home=${M2_HOME}" "-Dmaven.multiModuleProjectDirectory=${MAVEN_PROJECTBASEDIR}" \
+  ${WRAPPER_LAUNCHER} $MAVEN_CONFIG "$@"

spring-boot-usejpa/mvnw.cmd

@@ -0,0 +1,182 @@
+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    https://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
+if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+
+FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
+if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%" == "on" pause
+
+if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+
+exit /B %ERROR_CODE%

spring-boot-usejpa/pom.xml

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.springframework.boot</groupId>
+        <artifactId>spring-boot-starter-parent</artifactId>
+        <version>2.5.5</version>
+        <relativePath/> <!-- lookup parent from repository -->
+    </parent>
+    <groupId>cn.hzxy</groupId>
+    <artifactId>spring-boot-usejpa</artifactId>
+    <version>0.0.1-SNAPSHOT</version>
+    <name>spring-boot-usejpa</name>
+    <description>spring-boot-usejpa</description>
+    <properties>
+        <java.version>1.8</java.version>
+    </properties>
+    <dependencies>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jdbc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-data-jpa</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jdbc</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.alibaba</groupId>
+            <artifactId>druid</artifactId>
+            <version>1.1.12</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+            <scope>runtime</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-thymeleaf</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>junit</groupId>
+            <artifactId>junit</artifactId>
+            <version>4.12</version>
+            <scope>test</scope>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+        </plugins>
+    </build>
+
+</project>

spring-boot-usejpa/src/main/java/cn/hzxy/springbootusejpa/SpringBootUsejpaApplication.java

@@ -0,0 +1,16 @@
+package cn.hzxy.springbootusejpa;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
+
+
+@SpringBootApplication
+public class SpringBootUsejpaApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(SpringBootUsejpaApplication.class, args);
+    }
+
+}

spring-boot-usejpa/src/main/java/cn/hzxy/springbootusejpa/controller/NewTeacherController.java

@@ -0,0 +1,22 @@
+package cn.hzxy.springbootusejpa.controller;
+import cn.hzxy.springbootusejpa.entity.NewTeacher;
+import cn.hzxy.springbootusejpa.service.NewTeacherService;
+import org.springframework.stereotype.Controller;
+import org.springframework.ui.Model;
+import org.springframework.web.bind.annotation.RequestMapping;
+
+import javax.annotation.Resource;
+import java.util.List;
+
+@Controller
+@RequestMapping("/newTeacher")
+public class NewTeacherController {
+    @Resource
+    private NewTeacherService newTeacherService;
+    @RequestMapping("/test")
+    public String test(Model model){
+        List<NewTeacher> newTeacherList=newTeacherService.findAll();
+        model.addAttribute("newTeachers",newTeacherList);
+        return "newTeacher";
+    }
+}

spring-boot-usejpa/src/main/java/cn/hzxy/springbootusejpa/entity/NewTeacher.java

@@ -0,0 +1,38 @@
+package cn.hzxy.springbootusejpa.entity;
+
+import javax.persistence.*;
+
+@Entity
+@Table(name="teacher")
+public class NewTeacher {
+    @Id
+    private String id;
+    @Column(name="name",length=32)
+    private String name;
+    @Column
+    private String password;
+
+    public String getId() {
+        return id;
+    }
+
+    public void setId(String id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getPassword() {
+        return password;
+    }
+
+    public void setPassword(String password) {
+        this.password = password;
+    }
+}

spring-boot-usejpa/src/main/java/cn/hzxy/springbootusejpa/repository/TeacherRepository.java

@@ -0,0 +1,15 @@
+package cn.hzxy.springbootusejpa.repository;
+
+import cn.hzxy.springbootusejpa.entity.NewTeacher;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+import java.util.Collection;
+import java.util.List;
+
+
+public interface TeacherRepository extends JpaRepository<NewTeacher,String> {
+    List<NewTeacher> findByName(String name);
+    List<NewTeacher> findByNameLike(String name);
+    List<NewTeacher> findByIdIn(Collection<String> ids);
+
+}

spring-boot-usejpa/src/main/java/cn/hzxy/springbootusejpa/service/NewTeacherService.java

@@ -0,0 +1,22 @@
+package cn.hzxy.springbootusejpa.service;
+
+import cn.hzxy.springbootusejpa.entity.NewTeacher;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+
+import java.awt.print.Pageable;
+import java.util.Collection;
+import java.util.List;
+
+public interface NewTeacherService {
+    NewTeacher findById(String id);
+    List<NewTeacher> findAll();
+    NewTeacher sava(NewTeacher newTeacher);
+    void delete(String id);
+
+    Page<NewTeacher> findAll(PageRequest pageRequest);
+    List<NewTeacher> findByName(String name);
+    List<NewTeacher> findByNameLike(String name);
+    List<NewTeacher> findByIdIn(Collection<String> ids);
+
+}

spring-boot-usejpa/src/main/java/cn/hzxy/springbootusejpa/service/impl/Assert.java

@@ -0,0 +1,11 @@
+package cn.hzxy.springbootusejpa.service.impl;
+
+public class Assert extends org.springframework.util.Assert {
+    public static void isTrue(boolean expression,String message){
+        if(!expression)
+        {
+            throw new IllegalArgumentException(message);
+        }
+    }
+
+}

spring-boot-usejpa/src/main/java/cn/hzxy/springbootusejpa/service/impl/NewTeacherServiceImpl.java

@@ -0,0 +1,60 @@
+package cn.hzxy.springbootusejpa.service.impl;
+
+import cn.hzxy.springbootusejpa.entity.NewTeacher;
+import cn.hzxy.springbootusejpa.repository.TeacherRepository;
+import cn.hzxy.springbootusejpa.service.NewTeacherService;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.stereotype.Service;
+
+import javax.annotation.Resource;
+import java.awt.print.Pageable;
+import java.util.Collection;
+import java.util.List;
+
+@Service
+public class NewTeacherServiceImpl implements NewTeacherService {
+    @Resource
+    private TeacherRepository teacherRepository;
+    @Override
+    public NewTeacher findById(String id) {
+        return teacherRepository.findById(id).orElse(null);
+    }
+
+    @Override
+    public List<NewTeacher> findAll() {
+        List<NewTeacher> newTeacherList=teacherRepository.findAll();
+        return newTeacherList;
+    }
+
+    @Override
+    public NewTeacher sava(NewTeacher newTeacher) {
+        return teacherRepository.save(newTeacher);
+    }
+
+    @Override
+    public void delete(String id) {
+    teacherRepository.deleteById(id);
+    }
+
+    @Override
+    public Page<NewTeacher> findAll(PageRequest pageRequest) {
+        return teacherRepository.findAll(pageRequest);
+    }
+
+
+    @Override
+    public List<NewTeacher> findByName(String name) {
+        return teacherRepository.findByName(name);
+    }
+
+    @Override
+    public List<NewTeacher> findByNameLike(String name) {
+        return teacherRepository.findByNameLike(name);
+    }
+
+    @Override
+    public List<NewTeacher> findByIdIn(Collection<String> ids) {
+        return teacherRepository.findByIdIn(ids);
+    }
+}

spring-boot-usejpa/src/main/resources/application.properties

@@ -0,0 +1,26 @@
+spring.datasource.username=root
+spring.datasource.password=123456
+spring.datasource.url=jdbc:mysql://127.0.0.1:3306/teacher
+spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+spring.datasource.type=com.alibaba.druid.pool.DruidDataSource
+spring.datasource.initialSize=5
+spring.datasource.minIdle=5
+spring.datasource.maxActive=20
+spring.datasource.maxWait=6000
+spring.datasource.timeBetweenEvictionRunsMillis=60000
+spring.datasource.minEvictableIdleTimeMills=300000
+spring.datasource.validationQuery=SELECT 1 FROM DUAL
+spring.datasource.testWhileIdle=true
+spring.datasource.testOnBorrow=false
+spring.datasource.testOnReturn=false
+spring.datasource.poolPreparedStatements=true
+spring.datasource.maxPoolPreparedStatementPerConnectionSize=20
+spring.datasource.filters=stat,wall,log4j
+spring.datasource.connectionProperties=druid.stat.mergeSql=true;druid.stat.slowSqlMillis=5000
+spring.jpa.hibernate.naming.physical-strategy= org.hibernate.boot.model.naming.PhysicalNamingStrategyStandardImpl
+
+spring.thymeleaf.mode=HTML5
+spring.thymeleaf.encoding=UTF-8
+spring.thymeleaf.servlet.content-type=text/html
+spring.thymeleaf.cache=false
+spring.thymeleaf.prefix=classpath:/templates/

spring-boot-usejpa/src/main/resources/templates/newTeacher.html

@@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html xmlns:th="http://www.thymrleaf.org">
+<head>
+    <meta http-equiv="Content=Type" content="text/html" charset="UTF-8">
+    <title>teacher</title>
+    <style>
+        body{
+            background-image: url("/static/1.jfif") ;
+            background-size: 100%;
+        }
+
+    </style>
+
+</head>
+<body >
+<table>
+    <tr>
+        <td>教师名</td>
+        <td>密码</td>
+    </tr>
+    <tr th:each="newteacher:${newTeachers}">
+        <td th:text="${newteacher.name}"></td>
+        <td th:text="${newteacher.password}"></td>
+    </tr>
+</table>
+</body>
+</html>

spring-boot-usejpa/src/test/java/cn/hzxy/springbootusejpa/SpringBootUsejpaApplicationTests.java

@@ -0,0 +1,52 @@
+package cn.hzxy.springbootusejpa;
+
+import cn.hzxy.springbootusejpa.entity.NewTeacher;
+import cn.hzxy.springbootusejpa.service.NewTeacherService;
+import cn.hzxy.springbootusejpa.service.impl.Assert;
+import org.junit.jupiter.api.Test;
+import org.junit.runner.RunWith;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.PageRequest;
+import org.springframework.test.context.junit4.SpringRunner;
+
+import javax.annotation.Resource;
+import java.awt.print.Pageable;
+import java.util.ArrayList;
+import java.util.List;
+@RunWith(SpringRunner.class)
+@SpringBootTest
+class SpringBootUsejpaApplicationTests {
+    @Resource
+    private NewTeacherService newTeacherService;
+    @Test
+    public void testRepository(){
+//        List<NewTeacher> teacherList=newTeacherService.findAll();
+//        System.out.println("findAll():"+teacherList.size());
+        List<NewTeacher> teacherList2=newTeacherService.findByName("马驰");
+        System.out.println("findByName():"+teacherList2.size());
+        Assert.isTrue(teacherList2.get(0).getName().equals("马驰"),"data error");
+        List<NewTeacher> teacherList3=newTeacherService.findByNameLike("%张%");
+        System.out.println("findByNameLike():"+teacherList3.size());
+        System.out.println("第一条记录是："+teacherList3.get(0).getName());
+        System.out.println("第二条记录是："+teacherList3.get(1).getName());
+        Assert.isTrue(teacherList3.get(0).getName().equals("张晓欢"),"data error");
+        List<String> ids=new ArrayList<String>();
+        ids.add("1");
+        ids.add("3");
+        List<NewTeacher> teacherList4=newTeacherService.findByIdIn(ids);
+        System.out.println("findByIdIn():"+teacherList4.size());
+        PageRequest pageRequest =PageRequest.of(0,10);
+        Page<NewTeacher> teacherList5=newTeacherService.findAll(pageRequest);
+        System.out.println("page findAll():"+teacherList5.getTotalPages()+"/"+teacherList5.getSize());
+        NewTeacher newTeacher=new NewTeacher();
+        newTeacher.setId("4");
+        newTeacher.setName("彭晓刚");
+        newTeacher.setPassword("000000");
+        newTeacherService.sava(newTeacher);
+    }
+    @Test
+    void contextLoads() {
+    }
+
+}