数据库连接

Code/LeudaemiaLikeMe/app/src/main/AndroidManifest.xml

@@ -32,6 +32,10 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+
     </application>
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+
 
 </manifest>

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Activity/AttentionActivity.java

@@ -7,7 +7,7 @@ import androidx.recyclerview.widget.RecyclerView;
 import android.os.Bundle;
 
 import com.example.leudaemialikeme.Adapter.AttentionAdapter;
-import com.example.leudaemialikeme.Attention;
+import com.example.leudaemialikeme.Bean.Attention;
 import com.example.leudaemialikeme.R;
 
 import java.util.ArrayList;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Activity/ConcernedProblemActivity.java

@@ -6,9 +6,8 @@ import androidx.recyclerview.widget.RecyclerView;
 
 import android.os.Bundle;
 
-import com.example.leudaemialikeme.Adapter.EventAdapter;
 import com.example.leudaemialikeme.Adapter.QuestionAdapter;
-import com.example.leudaemialikeme.Question;
+import com.example.leudaemialikeme.Bean.Question;
 import com.example.leudaemialikeme.R;
 
 import java.util.ArrayList;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Activity/EventActivity.java

@@ -7,7 +7,7 @@ import androidx.recyclerview.widget.RecyclerView;
 import android.os.Bundle;
 
 import com.example.leudaemialikeme.Adapter.EventAdapter;
-import com.example.leudaemialikeme.Event;
+import com.example.leudaemialikeme.Bean.Event;
 import com.example.leudaemialikeme.R;
 
 import java.util.ArrayList;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Activity/InfoActivity.java

@@ -14,7 +14,7 @@ import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
 import com.example.leudaemialikeme.R;
-import com.example.leudaemialikeme.Recnews;
+import com.example.leudaemialikeme.Bean.Recnews;
 import com.example.leudaemialikeme.Adapter.InfoAdapter;
 
 import java.util.ArrayList;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Activity/MainActivity.java

@@ -11,6 +11,7 @@ import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.fragment.app.FragmentTransaction;
 
+import com.example.leudaemialikeme.Dao.QuestionDao;
 import com.example.leudaemialikeme.Fragment.CommunityFragment;
 import com.example.leudaemialikeme.Fragment.IndexFragment;
 import com.example.leudaemialikeme.Fragment.MessageFragment;
@@ -38,6 +39,9 @@ public class MainActivity extends AppCompatActivity {
     private TextView textCommunity;
     private TextView textMessage;
     private TextView textMy;
+
+
+
     //底部导航点击事件监听器
     private View.OnClickListener onClickListener = new View.OnClickListener() {
         public void onClick(View v) {
@@ -80,6 +84,18 @@ public class MainActivity extends AppCompatActivity {
                     .addToBackStack(null)
                     .commit();
         }
+
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                QuestionDao userDao=new QuestionDao();
+                try {
+                    userDao.qInsert();
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }
+        }).start();
     }
 
     private void initFirstRun(int i) {

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Activity/MyQuestionActivity.java

@@ -1,14 +1,13 @@
 package com.example.leudaemialikeme.Activity;
 
+import android.os.Bundle;
+
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
 
-import android.os.Bundle;
-
 import com.example.leudaemialikeme.Adapter.MyQuestionAdapter;
-import com.example.leudaemialikeme.Adapter.QuestionAdapter;
-import com.example.leudaemialikeme.MyQuestion;
+import com.example.leudaemialikeme.Bean.MyQuestion;
 import com.example.leudaemialikeme.R;
 
 import java.util.ArrayList;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Activity/SendQuestionActivity.java

@@ -1,16 +1,26 @@
 package com.example.leudaemialikeme.Activity;
 
-import androidx.appcompat.app.AppCompatActivity;
-
 import android.os.Bundle;
+import android.view.View;
+
+import androidx.appcompat.app.AppCompatActivity;
 
 import com.example.leudaemialikeme.R;
 
-public class SendQuestionActivity extends AppCompatActivity {
+public class SendQuestionActivity extends AppCompatActivity implements View.OnClickListener{
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_send_question);
+
+    }
+
+    @Override
+    public void onClick(View v) {
+
     }
 }
+
+
+

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Adapter/AttentionAdapter.java

@@ -9,8 +9,7 @@ import android.widget.TextView;
 import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView;
 
-import com.example.leudaemialikeme.Attention;
-import com.example.leudaemialikeme.Collect;
+import com.example.leudaemialikeme.Bean.Attention;
 import com.example.leudaemialikeme.R;
 
 import java.util.List;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Adapter/CollectAdapter.java

@@ -9,7 +9,7 @@ import android.widget.TextView;
 import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView;
 
-import com.example.leudaemialikeme.Collect;
+import com.example.leudaemialikeme.Bean.Collect;
 import com.example.leudaemialikeme.R;
 
 import java.util.List;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Adapter/EventAdapter.java

@@ -8,7 +8,7 @@ import android.widget.TextView;
 import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView;
 
-import com.example.leudaemialikeme.Event;
+import com.example.leudaemialikeme.Bean.Event;
 import com.example.leudaemialikeme.R;
 
 import java.util.List;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Adapter/InfoAdapter.java

@@ -13,7 +13,7 @@ import androidx.recyclerview.widget.RecyclerView;
 
 import com.example.leudaemialikeme.Activity.DetailActivity;
 import com.example.leudaemialikeme.R;
-import com.example.leudaemialikeme.Recnews;
+import com.example.leudaemialikeme.Bean.Recnews;
 
 import java.util.List;
 

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Adapter/MyQuestionAdapter.java

@@ -3,13 +3,12 @@ package com.example.leudaemialikeme.Adapter;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView;
 
-import com.example.leudaemialikeme.MyQuestion;
+import com.example.leudaemialikeme.Bean.MyQuestion;
 import com.example.leudaemialikeme.R;
 
 import java.util.List;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Adapter/QuestionAdapter.java

@@ -3,14 +3,13 @@ package com.example.leudaemialikeme.Adapter;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.ImageView;
 import android.widget.LinearLayout;
 import android.widget.TextView;
 
 import androidx.annotation.NonNull;
 import androidx.recyclerview.widget.RecyclerView;
 
-import com.example.leudaemialikeme.Question;
+import com.example.leudaemialikeme.Bean.Question;
 import com.example.leudaemialikeme.R;
 
 import java.util.List;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Adapter/RecnewsAdapter.java

@@ -14,7 +14,7 @@ import androidx.recyclerview.widget.RecyclerView;
 
 import com.example.leudaemialikeme.Activity.DetailActivity;
 import com.example.leudaemialikeme.R;
-import com.example.leudaemialikeme.Recnews;
+import com.example.leudaemialikeme.Bean.Recnews;
 
 import java.util.List;
 

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Bean/Attention.java

@@ -1,4 +1,4 @@
-package com.example.leudaemialikeme;
+package com.example.leudaemialikeme.Bean;
 
 import java.io.Serializable;
 

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Bean/Collect.java

@@ -1,4 +1,4 @@
-package com.example.leudaemialikeme;
+package com.example.leudaemialikeme.Bean;
 
 import java.io.Serializable;
 

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Bean/Event.java

@@ -1,4 +1,4 @@
-package com.example.leudaemialikeme;
+package com.example.leudaemialikeme.Bean;
 
 import java.io.Serializable;
 

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Bean/MyQuestion.java

@@ -1,4 +1,4 @@
-package com.example.leudaemialikeme;
+package com.example.leudaemialikeme.Bean;
 
 import java.io.Serializable;
 

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Bean/Question.java

@@ -1,4 +1,4 @@
-package com.example.leudaemialikeme;
+package com.example.leudaemialikeme.Bean;
 
 import java.io.Serializable;
 

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Bean/Recnews.java

@@ -1,4 +1,4 @@
-package com.example.leudaemialikeme;
+package com.example.leudaemialikeme.Bean;
 
 import java.io.Serializable;
 

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Bean/User.java

@@ -0,0 +1,60 @@
+package com.example.leudaemialikeme.Bean;
+
+public class User {
+    private static final long serialVersionUID = 1L;
+    private int uid;
+    private int id;
+    private String username;
+    private String name;
+    private String phone;
+    private String password;
+
+    public int getUid(){
+        return uid;
+    }
+    public void setUid(int uid){
+        this.uid=uid;
+    }
+    public void setId(int id){
+        this.id=id;
+    }
+    public int getId(){
+        return id;
+    }
+    public void setUsername(String username){
+        this.username=username;
+    }
+    public String getUsername(){
+        return username;
+    }
+    public void setName(String name){
+        this.name=name;
+    }
+    public String getName(){
+        return name;
+    }
+    public void setPhone(String phone){
+        this.phone=phone;
+    }
+    public String getPhone(){
+        return phone;
+    }
+    public void setPassword(String password){
+        this.password=password;
+    }
+    public String getPassword(){
+        return password;
+    }
+    public  User(int uid,int id,String username,String name, String phone,String password){
+        this.uid=uid;
+        this.id=id;
+        this.username=username;
+        this.name=name;
+        this.phone=phone;
+        this.password=password;
+    }
+
+
+
+}
+

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Dao/QuestionDao.java

@@ -0,0 +1,35 @@
+package com.example.leudaemialikeme.Dao;
+
+import android.util.Log;
+
+import com.example.leudaemialikeme.Utils.DBUtils;
+
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.Statement;
+
+public class QuestionDao {
+
+    public boolean qInsert()throws Exception{
+        Connection conn=null;
+        Statement state=null;
+        ResultSet rs=null;
+        try{
+            conn= DBUtils.getConnect();
+            state=conn.createStatement();
+            String sql="select uid=1 from Question";
+            rs=state.executeQuery(sql);
+            while (rs.next()){
+                Log.e("MYSQL","连接成功：uid"+rs.getString(1));
+            }
+        }catch (Exception e){
+            e.printStackTrace();
+        }finally {
+            DBUtils.release(conn,state,rs);
+        }
+        return true;
+    }
+}
+
+//int uid,String title,
+//                          String content,String time,int follow,int answer,int browse

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Fragment/AnswerCollectFragment.java

@@ -14,7 +14,7 @@ import android.view.View;
 import android.view.ViewGroup;
 
 import com.example.leudaemialikeme.Adapter.CollectAdapter;
-import com.example.leudaemialikeme.Collect;
+import com.example.leudaemialikeme.Bean.Collect;
 import com.example.leudaemialikeme.R;
 
 import java.util.ArrayList;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Fragment/IndexFragment.java

@@ -15,7 +15,7 @@ import com.example.leudaemialikeme.Activity.InfoActivity;
 import com.example.leudaemialikeme.Activity.MdctRmdActivity;
 import com.example.leudaemialikeme.Activity.SearchActivity;
 import com.example.leudaemialikeme.R;
-import com.example.leudaemialikeme.Recnews;
+import com.example.leudaemialikeme.Bean.Recnews;
 import com.example.leudaemialikeme.Adapter.RecnewsAdapter;
 
 import java.util.ArrayList;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Fragment/InvitationChannelFragment.java

@@ -12,7 +12,7 @@ import androidx.recyclerview.widget.RecyclerView;
 
 import com.example.leudaemialikeme.Adapter.RecnewsAdapter;
 import com.example.leudaemialikeme.R;
-import com.example.leudaemialikeme.Recnews;
+import com.example.leudaemialikeme.Bean.Recnews;
 
 import java.util.ArrayList;
 import java.util.List;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Fragment/NewsCollectFragment.java

@@ -1,7 +1,5 @@
 package com.example.leudaemialikeme.Fragment;
 
-import android.content.Context;
-import android.net.Uri;
 import android.os.Bundle;
 
 import androidx.fragment.app.Fragment;
@@ -16,7 +14,7 @@ import android.view.View;
 import android.view.ViewGroup;
 
 import com.example.leudaemialikeme.Adapter.CollectAdapter;
-import com.example.leudaemialikeme.Collect;
+import com.example.leudaemialikeme.Bean.Collect;
 import com.example.leudaemialikeme.R;
 
 import java.util.ArrayList;

Code/LeudaemiaLikeMe/app/src/main/java/com/example/leudaemialikeme/Utils/DBUtils.java

@@ -0,0 +1,56 @@
+package com.example.leudaemialikeme.Utils;
+
+import android.util.Log;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.Statement;
+
+public class DBUtils {
+
+    private final static String driver = "com.mysql.jdbc.Driver";
+    private final static String url = "jdbc:mysql://192.168.80.1:3306/leukemia?serverTimezone=UTC";
+
+    private final static String username = "root";
+    private final static String password = "123456";
+
+    Connection conn=null;
+    Statement st=null;
+    ResultSet rs=null;
+
+    static {
+        try {
+            Class.forName(driver);
+            Log.v("mysql","加载驱动成功");
+        } catch (ClassNotFoundException e) {
+            Log.e("mysql","加载驱动错误");
+        }
+    }
+
+
+    //2. 获取连接
+    public static Connection getConnect() throws Exception {
+        Connection conn=DriverManager.getConnection(url, username, password);
+        Log.v("mysql","成功获取数据库");
+        return conn;
+    }
+
+    //3. 释放连接资源
+
+    public static void release(Connection conn, Statement st, ResultSet rs) throws Exception {
+        if (rs != null) {
+            rs.close();
+        }
+        if (st != null) {
+            st.close();
+        }
+        if (conn != null) {
+            conn.close();
+        }
+
+    }
+
+}
+
+