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AndroidStudio_projects/app/src/androidTest/java/com/example/hamburger/ExampleInstrumentedTest.java

@@ -0,0 +1,26 @@
+package com.example.hamburger;
+
+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.example.hamburger", appContext.getPackageName());
+    }
+}

AndroidStudio_projects/app/src/androidTest/java/com/example/hamburger/Mtest.java

@@ -0,0 +1,84 @@
+package com.example.hamburger;
+import static androidx.test.core.app.ApplicationProvider.getApplicationContext;
+
+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.*;
+
+import com.example.hamburger.dao.UserDao;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.EditText;
+import android.view.View;
+import android.widget.Toast;
+import android.widget.Button;
+import android.os.Handler;
+import android.os.Message;
+import android.annotation.SuppressLint;
+import com.example.hamburger.dao.UserDao;
+import com.example.hamburger.entity.User;
+
+@RunWith(AndroidJUnit4.class)
+public class Mtest {
+
+    @Test
+    public void text_1() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.hamburger", appContext.getPackageName());
+
+        new Thread(){
+            @Override
+            public void run() {
+                UserDao userDao = new UserDao();
+                int msg = userDao.login("1","1");
+            }
+        }.start();
+    }
+
+    @Test
+    public void text_2() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+        assertEquals("com.example.hamburger", appContext.getPackageName());
+
+        User user = new User();
+
+        user.setUserAccount("11");
+        user.setUserPassword("11");
+        user.setUserName("11");
+        user.setUserType(1);
+        user.setUserState(0);
+        user.setUserDel(0);
+
+        new Thread(){
+            @Override
+            public void run() {
+
+                int msg = 0;
+
+                UserDao userDao = new UserDao();
+
+                User uu = userDao.findUser(user.getUserAccount());
+                if(uu != null){
+                    msg = 1;
+                }
+                else{
+                    boolean flag = userDao.register(user);
+                    if(flag){
+                        msg = 2;
+                    }
+                }
+
+            }
+        }.start();
+
+    }
+}

AndroidStudio_projects/app/src/main/java/com/example/hamburger/MainActivity.java

@@ -0,0 +1,70 @@
+package com.example.hamburger;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.widget.EditText;
+import android.view.View;
+import android.widget.Toast;
+import android.widget.Button;
+import android.os.Handler;
+import android.os.Message;
+import android.annotation.SuppressLint;
+import com.example.hamburger.dao.UserDao;
+
+public class MainActivity extends AppCompatActivity {
+
+    //这个类主要用来进行，账号密码的验证，以及监听事件的编写。
+    // 所以首先需要将一开始设计的输入文本框id name 和passwd获取。
+    EditText name;//创建账号
+    EditText passwd;//创建密码
+
+    private static final String TAG="mysql-party-MainActivity";
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+    }
+
+    public void login(View view){
+
+        EditText EditTextAccount = findViewById(R.id.name);
+        EditText EditTextPassword = findViewById(R.id.passwd);
+
+        Button button = (Button) findViewById(R.id.button);
+
+        new Thread(){
+            @Override
+            public void run() {
+                UserDao userDao = new UserDao();
+                int msg = userDao.login(EditTextAccount.getText().toString(),EditTextPassword.getText().toString());
+                hand1.sendEmptyMessage(msg);
+            }
+        }.start();
+    }
+
+    public void reg(View view){
+        startActivity(new Intent(getApplicationContext(),register.class));
+    }
+
+    @SuppressLint("HandlerLeak")
+    final Handler hand1 = new Handler() {
+        @Override
+        public void handleMessage(Message msg) {
+            if (msg.what == 0){
+                Toast.makeText(getApplicationContext(), "登录失败", Toast.LENGTH_LONG).show();
+            } else if (msg.what == 1) {
+                Toast.makeText(getApplicationContext(), "登录成功", Toast.LENGTH_LONG).show();
+                startActivity(new Intent(getApplicationContext(),MainActivity2.class));
+            } else if (msg.what == 2){
+                Toast.makeText(getApplicationContext(), "密码错误", Toast.LENGTH_LONG).show();
+            } else if (msg.what == 3){
+                Toast.makeText(getApplicationContext(), "账号不存在", Toast.LENGTH_LONG).show();
+            }
+        }
+    };
+
+}

AndroidStudio_projects/app/src/main/java/com/example/hamburger/MainActivity2.java

@@ -0,0 +1,37 @@
+package com.example.hamburger;
+
+import android.os.Bundle;
+
+import com.google.android.material.bottomnavigation.BottomNavigationView;
+
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.navigation.NavController;
+import androidx.navigation.Navigation;
+import androidx.navigation.ui.AppBarConfiguration;
+import androidx.navigation.ui.NavigationUI;
+
+import com.example.hamburger.databinding.ActivityMain2Binding;
+
+public class MainActivity2 extends AppCompatActivity {
+
+    private ActivityMain2Binding binding;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        binding = ActivityMain2Binding.inflate(getLayoutInflater());
+        setContentView(binding.getRoot());
+
+        BottomNavigationView navView = findViewById(R.id.nav_view);
+        // Passing each menu ID as a set of Ids because each
+        // menu should be considered as top level destinations.
+        AppBarConfiguration appBarConfiguration = new AppBarConfiguration.Builder(
+                R.id.navigation_home, R.id.navigation_dashboard, R.id.navigation_notifications)
+                .build();
+        NavController navController = Navigation.findNavController(this, R.id.nav_host_fragment_activity_main2);
+        NavigationUI.setupActionBarWithNavController(this, navController, appBarConfiguration);
+        NavigationUI.setupWithNavController(binding.navView, navController);
+    }
+
+}

AndroidStudio_projects/app/src/main/java/com/example/hamburger/dao/UserDao.java

@@ -0,0 +1,247 @@
+package com.example.hamburger.dao;
+
+
+import com.example.hamburger.entity.IsolationUser;
+import com.example.hamburger.entity.User;
+import com.example.hamburger.utils.JDBCUtils;
+
+import android.annotation.SuppressLint;
+import android.util.Log;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.util.HashMap;
+
+
+public class UserDao {
+
+    private static final String TAG = "mysql-party-UserDao";
+
+    /**
+     * function: 登录
+     * */
+    @SuppressLint("LongLogTag")
+    public int login(String userAccount, String userPassword){
+
+        HashMap<String, Object> map = new HashMap<>();
+        // 根据数据库名称，建立连接
+        Connection connection = JDBCUtils.getConn();
+        int msg = 0;
+        try {
+            // mysql简单的查询语句。这里是根据user表的userAccount字段来查询某条记录
+            String sql = "select * from user_ where userAccount = ?";
+            if (connection != null){// connection不为null表示与数据库建立了连接
+                PreparedStatement ps = connection.prepareStatement(sql);
+                if (ps != null){
+                    Log.e(TAG,"账号：" + userAccount);
+                    //根据账号进行查询
+                    ps.setString(1, userAccount);
+                    // 执行sql查询语句并返回结果集
+                    ResultSet rs = ps.executeQuery();
+                    int count = rs.getMetaData().getColumnCount();
+                    //将查到的内容储存在map里
+                    while (rs.next()){
+                        // 注意：下标是从1开始的
+                        for (int i = 1;i <= count;i++){
+                            String field = rs.getMetaData().getColumnName(i);
+                            map.put(field, rs.getString(field));
+                        }
+                    }
+                    connection.close();
+                    ps.close();
+
+                    if (map.size()!=0){
+                        StringBuilder s = new StringBuilder();
+                        //寻找密码是否匹配
+                        for (String key : map.keySet()){
+                            if(key.equals("userPassword")){
+                                if(userPassword.equals(map.get(key))){
+                                    msg = 1;            //密码正确
+                                }
+                                else
+                                    msg = 2;            //密码错误
+                                break;
+                            }
+                        }
+                    }else {
+                        Log.e(TAG, "查询结果为空");
+                        msg = 3;
+                    }
+                }else {
+                    msg = 0;
+                }
+            }else {
+                msg = 0;
+            }
+        }catch (Exception e){
+            e.printStackTrace();
+            Log.d(TAG, "异常login：" + e.getMessage());
+            msg = 0;
+        }
+        return msg;
+    }
+
+
+    /**
+     * function: 注册
+     * */
+    @SuppressLint("LongLogTag")
+    public boolean register(User user){
+        HashMap<String, Object> map = new HashMap<>();
+        // 根据数据库名称，建立连接
+        Connection connection = JDBCUtils.getConn();
+
+        try {
+            String sql = "insert into user_(userAccount,userPassword,userName,userType,userState,userDel) values (?,?,?,?,?,?)";
+            if (connection != null){// connection不为null表示与数据库建立了连接
+                PreparedStatement ps = connection.prepareStatement(sql);
+                if (ps != null){
+
+                    //将数据插入数据库
+                    ps.setString(1,user.getUserAccount());
+                    ps.setString(2,user.getUserPassword());
+                    ps.setString(3,user.getUserName());
+                    ps.setInt(4,user.getUserType());
+                    ps.setInt(5, user.getUserState());
+                    ps.setInt(6,user.getUserDel());
+
+                    // 执行sql查询语句并返回结果集
+                    int rs = ps.executeUpdate();
+                    if(rs>0)
+                        return true;
+                    else
+                        return false;
+                }else {
+                    return  false;
+                }
+            }else {
+                return  false;
+            }
+        }catch (Exception e){
+            e.printStackTrace();
+            Log.e(TAG, "异常register：" + e.getMessage());
+            return false;
+        }
+
+    }
+
+    /**
+     * function: 录入
+     * */
+    @SuppressLint("LongLogTag")
+    public boolean LogInfor(IsolationUser user){
+        HashMap<String, Object> map = new HashMap<>();
+        // 根据数据库名称，建立连接
+        Connection connection = JDBCUtils.getConn();
+
+        try {
+            String sql = "insert into infor_(name,gender,id_number,room_number,checkin_time) values (?,?,?,?,?)";
+            if (connection != null){// connection不为null表示与数据库建立了连接
+                PreparedStatement ps = connection.prepareStatement(sql);
+                if (ps != null){
+
+                    //将数据插入数据库
+                    ps.setString(1,user.getname());
+                    ps.setString(2,user.getGender());
+                    ps.setString(3,user.getIdnumber());
+                    ps.setInt(4,user.getRoomnumber());
+                    ps.setString(5, user.getCheckin_time());
+
+                    // 执行sql查询语句并返回结果集
+                    int rs = ps.executeUpdate();
+                    if(rs>0)
+                        return true;
+                    else
+                        return false;
+                }else {
+                    return  false;
+                }
+            }else {
+                return  false;
+            }
+        }catch (Exception e){
+            e.printStackTrace();
+            Log.e(TAG, "异常loginfor：" + e.getMessage());
+            return false;
+        }
+
+    }
+
+    /**
+     * function: 根据账号进行查找该用户是否存在
+     * */
+    @SuppressLint("LongLogTag")
+    public User findUser(String userAccount) {
+
+        // 根据数据库名称，建立连接
+        Connection connection = JDBCUtils.getConn();
+        User user = null;
+        try {
+            String sql = "select * from user_ where userAccount = ?";
+            if (connection != null){// connection不为null表示与数据库建立了连接
+                PreparedStatement ps = connection.prepareStatement(sql);
+                if (ps != null) {
+                    ps.setString(1, userAccount);
+                    ResultSet rs = ps.executeQuery();
+
+                    while (rs.next()) {
+                        //注意：下标是从1开始
+                        int id = rs.getInt(1);
+                        String userAccount1 = rs.getString(2);
+                        String userPassword = rs.getString(3);
+                        String userName = rs.getString(4);
+                        int userType = rs.getInt(5);
+                        int userState = rs.getInt(6);
+                        int userDel = rs.getInt(7);
+                        user = new User(userAccount1, userPassword);
+                    }
+                }
+            }
+        }catch (Exception e){
+            e.printStackTrace();
+            Log.d(TAG, "异常findUser：" + e.getMessage());
+            return null;
+        }
+        return user;
+    }
+
+    /**
+     * function: 根据姓名进行查找该用户是否存在 录入功能
+     * */
+    @SuppressLint("LongLogTag")
+    public IsolationUser findUser_(String name) {
+
+        // 根据数据库名称，建立连接
+        Connection connection = JDBCUtils.getConn();
+        IsolationUser user = null;
+        try {
+            String sql = "select * from infor_ where name  = ?";
+            if (connection != null){// connection不为null表示与数据库建立了连接
+                PreparedStatement ps = connection.prepareStatement(sql);
+                if (ps != null) {
+                    ps.setString(1, name);
+                    ResultSet rs = ps.executeQuery();
+
+                    while (rs.next()) {
+                        //注意：下标是从1开始
+                        int id = rs.getInt(1);
+                        String name1 = rs.getString(2);
+                        String gender = rs.getString(3);
+                        String idnumber = rs.getString(4);
+                        int roomnumber = rs.getInt(5);
+                        String checkin_time = rs.getString(6);
+                        user = new IsolationUser(name1,gender,idnumber,roomnumber,checkin_time);
+                    }
+                }
+            }
+        }catch (Exception e){
+            e.printStackTrace();
+            Log.d(TAG, "异常findUser：" + e.getMessage());
+            return null;
+        }
+        return user;
+    }
+
+}
+

AndroidStudio_projects/app/src/main/java/com/example/hamburger/entity/IsolationUser.java

@@ -0,0 +1,72 @@
+package com.example.hamburger.entity;
+
+public class IsolationUser {
+
+    private int id;
+    private String name;
+    private String gender;
+    private String idnumber;
+    private int roomnumber;
+    private String checkin_time;
+
+
+    public IsolationUser() {
+    }
+
+    public IsolationUser(String name, String gender, String idnumber, int roomnumber, String checkin_time) {
+        this.id = id;
+        this.name = name;
+        this.gender = gender;
+        this.idnumber = idnumber;
+        this.roomnumber = roomnumber;
+        this.checkin_time = checkin_time;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getname() {
+        return name;
+    }
+
+    public void setname(String name) {
+        this.name = name;
+    }
+
+    public String getGender() {
+        return gender;
+    }
+
+    public void setGender(String gender) {
+        this.gender = gender;
+    }
+
+    public String getIdnumber() {
+        return idnumber;
+    }
+
+    public void setIdnumber(String idnumber) {
+        this.idnumber = idnumber;
+    }
+
+    public int getRoomnumber() {
+        return roomnumber;
+    }
+
+    public void setRoomnumber(int roomnumber) {
+        this.roomnumber = roomnumber;
+    }
+
+    public String getCheckin_time() {
+        return checkin_time;
+    }
+
+    public void setCheckin_time(String checkin_time) {
+        this.checkin_time = checkin_time;
+    }
+}

AndroidStudio_projects/app/src/main/java/com/example/hamburger/entity/User.java

@@ -0,0 +1,83 @@
+package com.example.hamburger.entity;
+
+public class User {
+
+    private int id;
+    private String userAccount;
+    private String userPassword;
+    private String userName;
+    private int userType;
+    private int userState;
+    private int userDel;
+
+
+    public User() {
+    }
+
+    public User(String userAccount, String userPassword) {
+        this.id = id;
+        this.userAccount = userAccount;
+        this.userPassword = userPassword;
+        this.userName = userName;
+        this.userType = userType;
+        this.userState = userState;
+        this.userDel = userDel;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getUserAccount() {
+        return userAccount;
+    }
+
+    public void setUserAccount(String userAccount) {
+        this.userAccount = userAccount;
+    }
+
+    public String getUserPassword() {
+        return userPassword;
+    }
+
+    public void setUserPassword(String userPassword) {
+        this.userPassword = userPassword;
+    }
+
+    public String getUserName() {
+        return userName;
+    }
+
+    public void setUserName(String userName) {
+        this.userName = userName;
+    }
+
+    public int getUserType() {
+        return userType;
+    }
+
+    public void setUserType(int userType) {
+        this.userType = userType;
+    }
+
+    public int getUserState() {
+        return userState;
+    }
+
+    public void setUserState(int userState) {
+        this.userState = userState;
+    }
+
+    public int getUserDel() {
+        return userDel;
+    }
+
+    public void setUserDel(int userDel) {
+        this.userDel = userDel;
+    }
+}
+

AndroidStudio_projects/app/src/main/java/com/example/hamburger/register.java

@@ -0,0 +1,104 @@
+package com.example.hamburger;
+
+import android.annotation.SuppressLint;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.Toast;
+import com.example.hamburger.dao.UserDao;
+import com.example.hamburger.entity.User;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+public class register extends AppCompatActivity {
+    private static final String TAG = "mysql-party-register";
+    EditText userAccount = null;
+    EditText userPassword = null;
+    EditText userName = null;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_register);
+
+        userAccount = findViewById(R.id.userAccount);
+        userPassword = findViewById(R.id.userPassword);
+        userName = findViewById(R.id.userName);
+    }
+
+
+    public void register(View view){
+
+        String userAccount1 = userAccount.getText().toString();
+        String userPassword1 = userPassword.getText().toString();
+        String userName1 = userName.getText().toString();
+        User user = new User();
+        user.setUserAccount(userAccount1);
+        user.setUserPassword(userPassword1);
+        user.setUserName(userName1);
+        user.setUserType(1);
+        user.setUserState(0);
+        user.setUserDel(0);
+
+        new Thread(){
+            @Override
+            public void run() {
+                int msg = 0;
+                UserDao userDao = new UserDao();
+                User uu = userDao.findUser(user.getUserAccount());
+                if(uu != null){
+                    msg = 1;
+                }
+                else{
+                    boolean flag = userDao.register(user);
+                    if(flag){
+                        msg = 2;
+                    }
+                }
+                hand.sendEmptyMessage(msg);
+            }
+        }.start();
+
+
+    }
+    @SuppressLint("HandlerLeak")
+    final Handler hand = new Handler()
+    {
+        public void handleMessage(Message msg) {
+            if(msg.what == 0) {
+                Toast.makeText(getApplicationContext(),"注册失败",Toast.LENGTH_LONG).show();
+            } else if(msg.what == 1) {
+                Toast.makeText(getApplicationContext(),"该账号已经存在，请换一个账号",Toast.LENGTH_LONG).show();
+            } else if(msg.what == 2) {
+                Toast.makeText(getApplicationContext(), "注册成功", Toast.LENGTH_LONG).show();
+                Intent intent = new Intent();
+                //将想要传递的数据用putExtra封装在intent中
+                intent.putExtra("a","注册");
+                setResult(RESULT_CANCELED,intent);
+                finish();
+            }
+        }
+    };
+
+    public void Ret(View view){
+        //获取按钮
+        Button button = (Button) findViewById(R.id.ret);
+
+        //按钮进行监听
+        button.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                //监听按钮，如果点击，就跳转
+                Intent intent = new Intent();
+                //前一个（MainActivity.this）是目前页面，后面一个是要跳转的下一个页面
+                intent.setClass(register.this, MainActivity.class);
+                startActivity(intent);
+            }
+        });
+    }
+
+}

AndroidStudio_projects/app/src/main/java/com/example/hamburger/ui/home/Inform_input.java

@@ -0,0 +1,101 @@
+package com.example.hamburger.ui.home;
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.annotation.SuppressLint;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.Toast;
+
+import com.example.hamburger.R;
+import com.example.hamburger.dao.UserDao;
+import com.example.hamburger.entity.IsolationUser;
+
+public class Inform_input extends AppCompatActivity{
+
+    private static final String TAG = "mysql-party-register";
+    EditText name = null;
+    EditText gender = null;
+    EditText idnumber = null;
+    EditText roomnumber = null;
+    EditText checkin_time = null;
+
+
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.infor_input);
+
+        name = findViewById(R.id.name);
+        gender = findViewById(R.id.gender);
+        idnumber = findViewById(R.id.ID_number);
+        roomnumber = findViewById(R.id.roomnumber);
+        checkin_time = findViewById(R.id.checkin_time);
+
+    }
+
+    public void addInfor(View view){
+        String name1 = name.getText().toString();
+        String gender1 = gender.getText().toString();
+        String idnumber1 = idnumber.getText().toString();
+        int roomnumber1 = Integer.parseInt(roomnumber.getText().toString());
+        String checkin_time1 = checkin_time.getText().toString();
+
+        IsolationUser user=new IsolationUser();
+
+        user.setname(name1);
+        user.setGender(gender1);
+        user.setIdnumber(idnumber1);
+        user.setRoomnumber(roomnumber1);
+        user.setCheckin_time(checkin_time1);
+
+        new Thread(){
+            @Override
+            public void run() {
+
+                int msg = 0;
+
+                UserDao userDao = new UserDao();
+
+                IsolationUser uu = userDao.findUser_(user.getname());
+                if(uu != null){
+                    msg = 1;
+                }
+                else{
+                    boolean flag = userDao.LogInfor(user);
+                    if(flag){
+                        msg = 2;
+                    }
+                }
+                hand.sendEmptyMessage(msg);
+
+            }
+        }.start();
+    }
+
+    @SuppressLint("HandlerLeak")
+    final Handler hand = new Handler()
+    {
+        public void handleMessage(Message msg) {
+            if(msg.what == 0) {
+                Toast.makeText(getApplicationContext(),"录入失败",Toast.LENGTH_LONG).show();
+            } else if(msg.what == 1) {
+                Toast.makeText(getApplicationContext(),"该信息已经存在，请重新录入",Toast.LENGTH_LONG).show();
+            } else if(msg.what == 2) {
+                Toast.makeText(getApplicationContext(), "录入成功", Toast.LENGTH_LONG).show();
+                Intent intent = new Intent();
+                //将想要传递的数据用putExtra封装在intent中
+                intent.putExtra("a","录入");
+                setResult(RESULT_CANCELED,intent);
+                finish();
+            }
+        }
+    };
+
+    public void findInfor(View view){
+
+    }
+
+}

AndroidStudio_projects/app/src/main/java/com/example/hamburger/utils/JDBCUtils.java

@@ -0,0 +1,37 @@
+package com.example.hamburger.utils;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+
+/**
+ * function： 数据库工具类，连接数据库用
+ */
+public class JDBCUtils {
+    private static final String TAG = "mysql-party-JDBCUtils";
+
+    private static String driver = "com.mysql.jdbc.Driver";// MySql驱动
+
+    private static String dbName = "party";// 数据库名称
+
+    private static String user = "rootes";// 用户名
+
+    private static String password = "123456";// 密码
+
+    public static Connection getConn(){
+
+        Connection connection = null;
+        try{
+            Class.forName(driver);// 动态加载类
+            String ip = "192.168.43.7";// 写成本机地址，不能写成localhost，同时手机和电脑连接的网络必须是同一个
+
+            // 尝试建立到给定数据库URL的连接
+            connection = DriverManager.getConnection("jdbc:mysql://" + ip + ":3306/" + dbName,
+                    user, password);
+
+        }catch (Exception e){
+            e.printStackTrace();
+        }
+        return connection;
+    }
+}
+

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

@@ -0,0 +1,140 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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"
+    android:background="#c8c7c5"
+    tools:context=".MainActivity">
+
+    <!--
+    思路
+    1.登录界面需要输入账号、密码，那么我们我要两个输入文本框。
+    2.需要点击一个登录，那么需要一个登录按钮，以及监听按钮的登陆事件。
+    3.作为一个简易的登录界面，我们并不加入数据库，添加一个账号密码识别认证即可。-->
+
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:orientation="vertical"
+        tools:ignore="MissingConstraints"
+        tools:layout_editor_absoluteX="-25dp"
+        tools:layout_editor_absoluteY="291dp">
+
+        <!--android:layout_marginLeft 这个作用是设置和左边的间距
+        android:layout_marginTop 这个作用是设置和顶部的间距
+        android:ems  这个作用是限制输入长度
+        android:hint  这个作用是设置输入文本框内的提示内容
+        android:inputType  这个作用是选择输入的内容类型
+        android:textColorHint 这个作用是设置文本框内提示内容的颜色-->
+
+        <!--android:onClick 这个作用是与java文件中的监听事件对应
+        android:text 这个作用是给按钮一个文本显示-->
+        <TextView
+            android:id="@+id/title"
+            android:layout_width="400dp"
+            android:layout_height="100dp"
+            android:text="隔离酒店智慧管理系统"
+            android:textColor="#083684"
+            android:gravity="center"
+            android:textSize="30dp"
+            >
+
+        </TextView>
+
+        <ImageView
+            android:id="@+id/icon"
+            android:layout_width="100dp"
+            android:layout_height="100dp"
+            android:background="@drawable/hotel_logo"
+            app:layout_constraintTop_toBottomOf="@id/title"
+            >
+
+        </ImageView>
+
+        <EditText
+            android:id="@+id/name"
+            android:layout_width="264dp"
+            android:layout_height="50dp"
+            android:background="@color/white"
+            android:ems="12"
+            android:layout_marginTop="10dp"
+            android:hint="输入用户名"
+            android:inputType="text"
+            android:textColorHint="#083684"
+            tools:ignore="MissingConstraints"
+            tools:layout_editor_absoluteX="75dp"
+            tools:layout_editor_absoluteY="256dp"></EditText>
+
+        <EditText
+            android:id="@+id/passwd"
+            android:layout_width="264dp"
+            android:layout_height="50dp"
+            android:background="@color/white"
+            android:layout_marginTop="10dp"
+            android:ems="12"
+            android:hint="输入密码"
+            android:inputType="textPassword"
+            android:textColorHint="#083684"
+            tools:ignore="MissingConstraints"
+            tools:layout_editor_absoluteX="75dp"
+            tools:layout_editor_absoluteY="360dp"></EditText>
+
+        <!-- <RadioGroup
+             android:layout_width="wrap_content"
+             android:layout_height="wrap_content"
+             android:id="@+id/radioButton"
+             android:orientation="horizontal"
+             android:layout_constraintTop_toBottomOf="@id/passwd">
+
+         <RadioButton
+                 android:layout_width="wrap_content"
+                 android:layout_height="wrap_content"
+                 android:id="@+id/radioButton_1"
+                 android:text="隔离人员"
+                 android:textColor="#083684">
+
+             </RadioButton>
+
+             <RadioButton
+                 android:layout_width="wrap_content"
+                 android:layout_height="wrap_content"
+                 android:id="@+id/radioButton_2"
+                 android:text="管理员"
+                 android:textColor="#083684">
+
+             </RadioButton>
+
+         </RadioGroup>-->
+
+
+
+        <Button
+            android:id="@+id/button"
+            android:layout_width="200dp"
+            android:layout_height="48dp"
+            android:onClick="login"
+            android:text="登录"
+            android:layout_marginTop="10dp"
+            android:backgroundTint="#083684"
+            tools:ignore="MissingConstraints"
+            tools:layout_editor_absoluteX="105dp"
+            tools:layout_editor_absoluteY="469dp" />
+        <!---->
+        <Button
+            android:id="@+id/register"
+            android:layout_width="200dp"
+            android:layout_height="48dp"
+            android:onClick="reg"
+            android:text="注册"
+            android:layout_marginTop="10dp"
+            android:backgroundTint="#083684"
+            tools:ignore="MissingConstraints"
+            tools:layout_editor_absoluteX="105dp"
+            tools:layout_editor_absoluteY="469dp" />
+    </LinearLayout>
+    <!---->
+
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:background="#c8c7c5"
+    tools:context=".register">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:orientation="vertical"
+        tools:ignore="MissingConstraints"
+        tools:layout_editor_absoluteX="-25dp"
+        tools:layout_editor_absoluteY="291dp">
+
+        <TextView
+            android:layout_width="400dp"
+            android:layout_height="100dp"
+            android:text="酒店智慧管理系统"
+            android:textColor="#083684"
+            android:gravity="center"
+            android:textSize="30dp">
+
+        </TextView>
+
+        <EditText
+            android:id="@+id/userAccount"
+            android:layout_width="264dp"
+            android:layout_height="50dp"
+            android:background="@color/white"
+            android:ems="12"
+            android:layout_marginTop="10dp"
+            android:hint="创建用户名"
+            android:inputType="text"
+            android:textColorHint="#083684"
+            tools:ignore="MissingConstraints"
+            tools:layout_editor_absoluteX="75dp"
+            tools:layout_editor_absoluteY="256dp"></EditText>
+
+        <EditText
+            android:id="@+id/userName"
+            android:layout_width="264dp"
+            android:layout_height="50dp"
+            android:background="@color/white"
+            android:layout_marginTop="10dp"
+            android:ems="12"
+            android:hint="创建昵称"
+            android:inputType="text"
+            android:textColorHint="#083684"
+            tools:ignore="MissingConstraints"
+            tools:layout_editor_absoluteX="75dp"
+            tools:layout_editor_absoluteY="360dp"></EditText>
+
+        <EditText
+            android:id="@+id/userPassword"
+            android:layout_width="264dp"
+            android:layout_height="50dp"
+            android:background="@color/white"
+            android:layout_marginTop="10dp"
+            android:ems="12"
+            android:hint="创建密码"
+            android:inputType="textPassword"
+            android:textColorHint="#083684"
+            tools:ignore="MissingConstraints"
+            tools:layout_editor_absoluteX="75dp"
+            tools:layout_editor_absoluteY="360dp"></EditText>
+
+        <Button
+            android:id="@+id/register"
+            android:layout_width="200dp"
+            android:layout_height="48dp"
+            android:onClick="register"
+            android:text="注册"
+            android:layout_marginTop="10dp"
+            android:backgroundTint="#083684"
+            tools:ignore="MissingConstraints"
+            tools:layout_editor_absoluteX="105dp"
+            tools:layout_editor_absoluteY="469dp" />
+
+        <Button
+            android:id="@+id/ret"
+            android:layout_width="200dp"
+            android:layout_height="48dp"
+            android:onClick="Ret"
+            android:text="返回"
+            android:layout_marginTop="10dp"
+            android:backgroundTint="#083684"
+            tools:ignore="MissingConstraints"
+            tools:layout_editor_absoluteX="105dp"
+            tools:layout_editor_absoluteY="469dp" />
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>

AndroidStudio_projects/app/src/main/res/layout/infor_input.xml

@@ -0,0 +1,177 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:background="#c8c7c5"
+    tools:context=".ui.home.Inform_input">
+
+
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:orientation="vertical"
+        tools:layout_editor_absoluteX="219dp"
+        tools:layout_editor_absoluteY="207dp"
+        android:padding="50dp"
+
+        >
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+
+        <TextView
+            android:id="@+id/textView"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:textSize="15sp"
+            android:text="姓名：" />
+
+        <EditText
+            android:id="@+id/name"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:ems="10"
+            android:inputType="text"
+            />
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+
+        <TextView
+            android:id="@+id/textView1"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:textSize="15sp"
+            android:text="性别：" />
+
+        <EditText
+            android:id="@+id/gender"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:ems="10"
+            android:inputType="textPersonName"
+            />
+    </LinearLayout>
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+
+        <TextView
+            android:id="@+id/textView2"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:textSize="15sp"
+            android:text="身份证号："
+
+            />
+
+        <EditText
+            android:id="@+id/ID_number"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:ems="10"
+            android:inputType="text"
+            tools:ignore="DuplicateIds" />
+    </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+
+            <TextView
+                android:id="@+id/textView3"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:textSize="15sp"
+                android:text="房间号："
+
+                />
+
+            <EditText
+                android:id="@+id/roomnumber"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:ems="10"
+                android:inputType="text"
+                />
+        </LinearLayout>
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
+
+            <TextView
+                android:id="@+id/textView4"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:textSize="15sp"
+                android:text="入住时间："
+
+                />
+
+            <EditText
+                android:id="@+id/checkin_time"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:ems="10"
+                android:inputType="text"
+                />
+        </LinearLayout>
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+
+    </LinearLayout>
+
+        <Button
+            android:layout_marginTop="50dp"
+            android:id="@+id/button2"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="录入"
+            android:backgroundTint="#083684"
+            android:onClick="addInfor"
+            />
+
+        <Button
+            android:layout_marginTop="10dp"
+            android:id="@+id/button3"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:text="查询"
+            android:backgroundTint="#083684"
+            android:onClick="findInfor"
+            />
+
+        <TextView
+            android:id="@+id/tv_response"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:textStyle="bold" />
+    </LinearLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>