插入數據到android的sqlite數據庫不起作用

Question

嘿，大家我試圖插入數據到sqlite數據庫，但是當我點擊插入按鈕沒有發生沒有強制關閉，沒有錯誤，沒有成功/不成功吐司消息什麼都沒有。當我點擊查看數據庫信息按鈕沒有數據插入到數據庫。我做了這個更早，沒有問題，但我不能找到我哪裏出了錯這一次，請幫助我，謝謝你提前這麼多。

---

MainActivity

package com.example.sql; 

import android.app.Activity; 
import android.app.Dialog; 
import android.content.Intent; 
import android.media.MediaPlayer; 
import android.os.Bundle; 
import android.util.Log; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.TextView; 
import android.widget.Toast; 

public class MainActivity extends Activity implements OnClickListener { 

    Button insert,viewd; 
    EditText name,age; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 

     name = (EditText)findViewById(R.id.etname); 
     age = (EditText) findViewById(R.id.etage); 

     insert = (Button)findViewById(R.id.btninsert); 
     viewd = (Button)findViewById(R.id.btnview); 

     insert.setOnClickListener(this); 
     viewd.setOnClickListener(this); 

    } 


    @Override 
    public void onClick(View v) { 
     // TODO Auto-generated method stub 

final MediaPlayer mpButtonClick = MediaPlayer.create(this, R.raw.buttonclick); 

     switch (v.getId()) { 

     case R.id.btninsert: 

      boolean status = true; 

      try{ 

      String name1 = name.getText().toString(); 
      String age1 = age.getText().toString(); 

      SQLActivity entry = new SQLActivity(MainActivity.this); 
      entry.open(); 

      entry.passDataToEntry(name1,age1); 
      entry.close(); 

      mpButtonClick.start(); 

      } 
      catch (Exception e) { 
       // TODO: handle exception 
       status=false; 

       String error = e.toString(); 

       Log.e("Exception found ",error); 

      } 
      finally{ 
       if(status) 
       { 
        Toast.makeText(getApplicationContext(), "Successfully Inserted", Toast.LENGTH_SHORT).show(); 

       } 
      } 

      break; 

     case R.id.btnview: 
      Intent i = new Intent("com.example.sql.VIEW"); 
      startActivity(i); 
      break; 
     } 

    } 
} 

---

SQLActivity

package com.example.sql; 

import android.content.ContentValues; 
import android.content.Context; 
import android.database.Cursor; 
import android.database.SQLException; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteOpenHelper; 
import android.util.Log; 

public class SQLActivity { 

    public static final String KEY_ROWID = "_id"; 
    public static final String KEY_NAME = "p_name"; 
    public static final String KEY_AGE = "p_age"; 


    private static final String DATABASE_NAME = "SQLDB"; 
    private static final String DATABASE_TABLE = "data_table"; 
    private static final int DATABASE_VERSION = 1; 


    private DbHelper ourHelper; 
    private final Context ourContext; 
    private SQLiteDatabase ourDatabase; 

    private static class DbHelper extends SQLiteOpenHelper 
    { 

     public DbHelper(Context context) { 
      super(context, DATABASE_NAME, null, DATABASE_VERSION); 
      // TODO Auto-generated constructor stub 
     } 

     @Override 
     public void onCreate(SQLiteDatabase db) { 
      // TODO Auto-generated method stub 
      db.execSQL("CREATE TABLE " + DATABASE_TABLE + " (" + KEY_ROWID 
        + " INTEGER PRIMARY KEY AUTOINCREMENT , " + KEY_NAME + " TEXT NOT NULL , " 
        + KEY_AGE + " TEXT NOT NULL);" 
        ); 

      String y = "CREATE TABLE " + DATABASE_TABLE + " (" + KEY_ROWID 
        + " INTEGER PRIMARY KEY AUTOINCREMENT , " + KEY_NAME + " TEXT NOT NULL , " 
        + KEY_AGE + " TEXT NOT NULL);"; 

      //System.out.println("query" + y); 
      Log.d("query", y); 


     } 

     @Override 
     public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
      // TODO Auto-generated method stub 
      Log.w("TaskDBAdapter", "Upgrading from version " + 
        oldVersion + " to " + 
        newVersion + ", which will destroy all old data"); 

      db.execSQL("DROP TABLE IF EXISTS " + DATABASE_TABLE); 

      onCreate(db); 

     } 

    } 

    public SQLActivity(Context c) 
    { 
     ourContext = c; 
    } 

    public SQLActivity open() throws SQLException 
    { 
     ourHelper = new DbHelper(ourContext); 
     ourDatabase = ourHelper.getWritableDatabase(); 
     return this; 
    } 

    public void close() 
    { 
     ourHelper.close(); 
    } 


    public long passDataToEntry(String name1, String age1) { 
     // TODO Auto-generated method stub 

     ContentValues cv = new ContentValues(); 
     cv.put(KEY_NAME, name1); 
     cv.put(KEY_AGE, age1); 
     int i = (int)ourDatabase.insert(DATABASE_TABLE, null, cv); 
     String MY_TAG=""; 
     Log.d(MY_TAG,"Value= "+i); 
     return ourDatabase.insert(DATABASE_TABLE, null, cv); 


    } 

    public String getData() { 
     // TODO Auto-generated method stub 
     String[] columns = new String[]{KEY_NAME,KEY_AGE}; 
     Cursor c = ourDatabase.query(DATABASE_TABLE, columns, null, null, null, null, null); 
     String result = ""; 

     int iRow = c.getColumnIndex(KEY_ROWID); 
     int iName = c.getColumnIndex(KEY_NAME); 
     int iAge = c.getColumnIndex(KEY_AGE); 

     for(c.moveToFirst(); !c.isAfterLast(); c.moveToNext()) 
     { 
      result = result + c.getString(iName) + " " + c.getString(iAge) + "\n"; 
     } 

     return result; 
    } 





} 

---

activity_main.xml中

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    xmlns:tools="http://schemas.android.com/tools" 
    android:id="@+id/LinearLayout1" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" 
    android:paddingBottom="@dimen/activity_vertical_margin" 
    android:paddingLeft="@dimen/activity_horizontal_margin" 
    android:paddingRight="@dimen/activity_horizontal_margin" 
    android:paddingTop="@dimen/activity_vertical_margin" 
    tools:context=".MainActivity" > 

    <TextView 
     android:id="@+id/textView1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginTop="28dp" 
     android:text="Name" 
     android:textAppearance="?android:attr/textAppearanceMedium" /> 

    <EditText 
     android:id="@+id/etname" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_marginTop="14dp" 
     android:ems="10" 
     android:inputType="textPersonName" /> 

    <TextView 
     android:id="@+id/tvinfo" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_marginBottom="40dp" 
     android:text="Age" 
     android:textAppearance="?android:attr/textAppearanceMedium" /> 

    <EditText 
     android:id="@+id/etage" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:ems="10" 
     android:inputType="number" /> 

    <Button 
     android:id="@+id/btninsert" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:layout_marginTop="130dp" 
     android:text="Insert" /> 

    <Button 
     android:id="@+id/btnview" 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:text="View" /> 

</LinearLayout> 

---

logcat的

04-18 22:43:50.625: E/Zygote(33): setreuid() failed. errno: 2 
04-18 22:43:56.095: E/Zygote(33): setreuid() failed. errno: 17 
04-18 22:43:56.985: E/BatteryService(59): usbOnlinePath not found 
04-18 22:43:56.985: E/BatteryService(59): batteryVoltagePath not found 
04-18 22:43:56.985: E/BatteryService(59): batteryTemperaturePath not found 
04-18 22:43:56.995: E/SurfaceFlinger(59): Couldn't open /sys/power/wait_for_fb_sleep or /sys/power/wait_for_fb_wake 
04-18 22:44:01.455: E/EventHub(59): could not get driver version for /dev/input/mouse0, Not a typewriter 
04-18 22:44:01.455: E/EventHub(59): could not get driver version for /dev/input/mice, Not a typewriter 
04-18 22:44:02.105: E/System(59): Failure starting core service 
04-18 22:44:02.105: E/System(59): java.lang.SecurityException 
04-18 22:44:02.105: E/System(59): at android.os.BinderProxy.transact(Native Method) 
04-18 22:44:02.105: E/System(59): at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146) 
04-18 22:44:02.105: E/System(59): at android.os.ServiceManager.addService(ServiceManager.java:72) 
04-18 22:44:02.105: E/System(59): at com.android.server.ServerThread.run(SystemServer.java:184) 
04-18 22:44:02.665: E/SoundPool(59): error loading /system/media/audio/ui/Effect_Tick.ogg 
04-18 22:44:02.675: E/SoundPool(59): error loading /system/media/audio/ui/KeypressStandard.ogg 
04-18 22:44:02.675: E/SoundPool(59): error loading /system/media/audio/ui/KeypressSpacebar.ogg 
04-18 22:44:02.675: E/SoundPool(59): error loading /system/media/audio/ui/KeypressDelete.ogg 
04-18 22:44:02.675: E/SoundPool(59): error loading /system/media/audio/ui/KeypressReturn.ogg 
04-18 22:44:03.755: E/ThrottleService(59): Could not open GPS configuration file /etc/gps.conf 
04-18 22:44:05.005: E/logwrapper(147): executing /system/bin/tc failed: No such file or directory 
04-18 22:44:05.045: E/logwrapper(148): executing /system/bin/tc failed: No such file or directory 
04-18 22:44:05.065: E/logwrapper(149): executing /system/bin/tc failed: No such file or directory 
04-18 22:44:10.423: E/HierarchicalStateMachine(59): TetherMaster - unhandledMessage: msg.what=3 

---

ViewActivity

package com.example.sql; 

import android.app.Activity; 
import android.os.Bundle; 
import android.widget.TextView; 

public class ViewActivity extends Activity{ 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     // TODO Auto-generated method stub 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.view); 

     TextView tv = (TextView)findViewById(R.id.tvinfo); 
     SQLActivity info = new SQLActivity(this); 
     info.open(); 
     info.getData(); 
    } 



} 

---

view.xml用

<?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="vertical" > 

    <TextView 
     android:id="@+id/textView1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="Data...." /> 

    <TextView 
     android:id="@+id/tvinfo" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:text="DB Info" /> 

</LinearLayout> 

Answer 1

在ViewActiviy

tv.setText(info.getData()); 
info.close(); 

Answer 2

設置文本下面是簡單的SQLite數據庫試試這個，你的情況符合這一點。

RegistrationAdapter.java

package com.example.registrationform; 
     import android.content.ContentValues; 
     import android.content.Context; 
     import android.database.Cursor; 
     import android.database.sqlite.SQLiteDatabase; 

    public class RegistrationAdapter { 
     SQLiteDatabase database_ob; 
     RegistrationOpenHelper openHelper_ob; 
     Context context; 

     public RegistrationAdapter(Context c) { 
      context = c; 
     } 

     public RegistrationAdapter opnToRead() { 
      openHelper_ob = new RegistrationOpenHelper(context, 
        openHelper_ob.DATABASE_NAME, null, openHelper_ob.VERSION); 
      database_ob = openHelper_ob.getReadableDatabase(); 
      return this; 

     } 

     public RegistrationAdapter opnToWrite() { 
      openHelper_ob = new RegistrationOpenHelper(context, 
        openHelper_ob.DATABASE_NAME, null, openHelper_ob.VERSION); 
      database_ob = openHelper_ob.getWritableDatabase(); 
      return this; 

     } 

     public void Close() { 
      database_ob.close(); 
     } 

     public long insertDetails(String fname, String lname) { 
      ContentValues contentValues = new ContentValues(); 
      contentValues.put(openHelper_ob.FNAME, fname); 
      contentValues.put(openHelper_ob.LNAME, lname); 
      opnToWrite(); 
      long val = database_ob.insert(openHelper_ob.TABLE_NAME, null, 
        contentValues); 
      Close(); 
      return val; 

     } 

     public Cursor queryName() { 
      String[] cols = { openHelper_ob.KEY_ID, openHelper_ob.FNAME, 
        openHelper_ob.LNAME }; 
      opnToWrite(); 
      Cursor c = database_ob.query(openHelper_ob.TABLE_NAME, cols, null, 
        null, null, null, null); 

      return c; 

     } 

     public Cursor queryAll(int nameId) { 
      String[] cols = { openHelper_ob.KEY_ID, openHelper_ob.FNAME, 
        openHelper_ob.LNAME }; 
      opnToWrite(); 
      Cursor c = database_ob.query(openHelper_ob.TABLE_NAME, cols, 
        openHelper_ob.KEY_ID + "=" + nameId, null, null, null, null); 

      return c; 

     } 

     public long updateldetail(int rowId, String fname, String lname) { 
      ContentValues contentValues = new ContentValues(); 
      contentValues.put(openHelper_ob.FNAME, fname); 
      contentValues.put(openHelper_ob.LNAME, lname); 
      opnToWrite(); 
      long val = database_ob.update(openHelper_ob.TABLE_NAME, contentValues, 
        openHelper_ob.KEY_ID + "=" + rowId, null); 
      Close(); 
      return val; 
     } 

     public int deletOneRecord(int rowId) { 
      // TODO Auto-generated method stub 
      opnToWrite(); 
      int val = database_ob.delete(openHelper_ob.TABLE_NAME, 
        openHelper_ob.KEY_ID + "=" + rowId, null); 
      Close(); 
      return val; 
     } 

    } 

openhelper.java

package com.example.registrationform; 


import android.content.Context; 
import android.database.sqlite.SQLiteDatabase; 
import android.database.sqlite.SQLiteDatabase.CursorFactory; 
import android.database.sqlite.SQLiteOpenHelper; 

public class RegistrationOpenHelper extends SQLiteOpenHelper { 
    public static final String DATABASE_NAME = "REGISTRATION_DB"; 
    public static final String TABLE_NAME = "REGISTRATION_TABLE"; 
    public static final String TABLE_NAME_ONE = "REGISTRATION_TABLE_ONE"; 
    public static final int VERSION = 1; 
    public static final String KEY_ID = "_id"; 
    public static final String FNAME = "F_NAME"; 
    public static final String PKEY_ID = "pid"; 
    public static final String PROFILE = "profile"; 
    public static final String LNAME = "L_NAME"; 
    public static final String SCRIPT = "create table " + TABLE_NAME + " (" 
      + KEY_ID + " integer primary key autoincrement, " + FNAME 
      + " text not null, " + LNAME + " text not null);"; 

    public static final String PROFILE_TABLE = "create table " + TABLE_NAME_ONE + " (" 
      + PKEY_ID + " integer primary key autoincrement, " + PROFILE 
      + " text not null,);"; 

    /* public static final String PROFILE_TABLE="create table profiletable(profileid integer primary key autoincrement,profilename text null);"; 
    public static final String VALUE_TABLE="create table valuetable(id integer primary key autoincrement,value text null,delay);"; 
    */ 


    public RegistrationOpenHelper(Context context, String name, 
      CursorFactory factory, int version) { 
     super(context, name, factory, version); 
     // TODO Auto-generated constructor stub 
    } 

    @Override 
    public void onCreate(SQLiteDatabase db) { 
     // TODO Auto-generated method stub 
     db.execSQL(SCRIPT); 
     db.execSQL(PROFILE_TABLE); 
    } 

    @Override 
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 
     // TODO Auto-generated method stub 
     db.execSQL("drop table " + TABLE_NAME); 
     db.execSQL("drop table "+TABLE_NAME_ONE); 
     onCreate(db); 
    } 

} 

RegistrationActivity.java

package com.example.registrationform; 



import android.app.Activity; 
import android.os.Bundle; 
import android.view.View; 
import android.view.View.OnClickListener; 
import android.widget.Button; 
import android.widget.EditText; 

public class RegistrationActivity extends Activity { 
    RegistrationAdapter adapter; 
    RegistrationOpenHelper helper; 
    EditText fnameEdit, lnameEdit; 
    Button submitBtn, resetBtn; 

    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.register); 
     fnameEdit = (EditText) findViewById(R.id.et_fname); 
     lnameEdit = (EditText) findViewById(R.id.et_lname); 
     submitBtn = (Button) findViewById(R.id.btn_submit); 
     resetBtn = (Button) findViewById(R.id.btn_reset); 
     adapter = new RegistrationAdapter(this); 

     submitBtn.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View arg0) { 
       // TODO Auto-generated method stub 
       String fnameValue = fnameEdit.getText().toString(); 
       String lnameValue = lnameEdit.getText().toString(); 
       long val = adapter.insertDetails(fnameValue, lnameValue); 
       // Toast.makeText(getApplicationContext(), Long.toString(val), 
       // 300).show(); 
       finish(); 
      } 
     }); 
     resetBtn.setOnClickListener(new OnClickListener() { 

      @Override 
      public void onClick(View v) { 
       // TODO Auto-generated method stub 
       fnameEdit.setText(""); 
       lnameEdit.setText(""); 
      } 
     }); 

    } 
} 

MainActivity.java

package com.example.registrationform; 

    import android.app.Activity; 
    import android.content.Intent; 
    import android.database.Cursor; 
    import android.database.sqlite.SQLiteDatabase; 
    import android.os.Bundle; 
    import android.support.v4.widget.SimpleCursorAdapter; 
    import android.view.View; 
    import android.view.View.OnClickListener; 
    import android.widget.AdapterView; 
    import android.widget.AdapterView.OnItemClickListener; 
    import android.widget.Button; 
    import android.widget.ListView; 

    public class MainActivity extends Activity { 
     RegistrationAdapter adapter_ob; 
     RegistrationOpenHelper helper_ob; 
     SQLiteDatabase db_ob; 
     ListView nameList; 
     Button registerBtn; 
     Cursor cursor; 

     @Override 
     public void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.main); 
      nameList = (ListView) findViewById(R.id.lv_name); 
      registerBtn = (Button) findViewById(R.id.btn_register); 
      adapter_ob = new RegistrationAdapter(this); 

      String[] from = { helper_ob.FNAME, helper_ob.LNAME }; 
      int[] to = { R.id.tv_fname, R.id.tv_lname }; 
      cursor = adapter_ob.queryName(); 
      SimpleCursorAdapter cursorAdapter = new SimpleCursorAdapter(this, 
        R.layout.row, cursor, from, to); 
      nameList.setAdapter(cursorAdapter); 
      nameList.setOnItemClickListener(new OnItemClickListener() { 

       @Override 
       public void onItemClick(AdapterView arg0, View arg1, int arg2, 
         long arg3) { 
        // TODO Auto-generated method stub 
        Bundle passdata = new Bundle(); 
        Cursor listCursor = (Cursor) arg0.getItemAtPosition(arg2); 
        int nameId = listCursor.getInt(listCursor 
          .getColumnIndex(helper_ob.KEY_ID)); 
        passdata.putInt("keyid", nameId); 
        Intent passIntent = new Intent(MainActivity.this, 
          EditActivity.class); 
        passIntent.putExtras(passdata); 
        startActivity(passIntent); 
       } 
      }); 
      registerBtn.setOnClickListener(new OnClickListener() { 

       @Override 
       public void onClick(View arg0) { 
        // TODO Auto-generated method stub 
        Intent registerIntent = new Intent(MainActivity.this, 
          RegistrationActivity.class); 
        startActivity(registerIntent); 
       } 
      }); 

     } 

     @Override 
     public void onResume() { 
      super.onResume(); 
      cursor.requery(); 

     } 

    } 

EditActivity.java

package com.example.registrationform; 


    import android.app.Activity; 
    import android.database.Cursor; 
    import android.os.Bundle; 
    import android.view.View; 
    import android.view.View.OnClickListener; 
    import android.widget.Button; 
    import android.widget.EditText; 

    public class EditActivity extends Activity { 
     RegistrationAdapter regadapter; 
     RegistrationOpenHelper openHelper; 
     int rowId; 
     Cursor c; 
     String fNameValue, lNameValue; 
     EditText fname, lname; 
     Button editSubmit, btnDelete; 

     public void onCreate(Bundle savedInstanceState) { 
      super.onCreate(savedInstanceState); 
      setContentView(R.layout.editregister); 
      fname = (EditText) findViewById(R.id.et_editfname); 
      lname = (EditText) findViewById(R.id.et_editlname); 
      editSubmit = (Button) findViewById(R.id.btn_update); 
      btnDelete = (Button) findViewById(R.id.btn_delete); 

      Bundle showData = getIntent().getExtras(); 
      rowId = showData.getInt("keyid"); 
      // Toast.makeText(getApplicationContext(), Integer.toString(rowId), 
      // 500).show(); 
      regadapter = new RegistrationAdapter(this); 

      c = regadapter.queryAll(rowId); 

      if (c.moveToFirst()) { 
       do { 
        fname.setText(c.getString(1)); 
        lname.setText(c.getString(2)); 

       } while (c.moveToNext()); 
      } 

      editSubmit.setOnClickListener(new OnClickListener() { 

       @Override 
       public void onClick(View arg0) { 
        // TODO Auto-generated method stub 
        regadapter.updateldetail(rowId, fname.getText().toString(), 
          lname.getText().toString()); 
        finish(); 
       } 
      }); 
      btnDelete.setOnClickListener(new OnClickListener() { 

       @Override 
       public void onClick(View v) { 
        // TODO Auto-generated method stub 
        regadapter.deletOneRecord(rowId); 
        finish(); 
       } 
      }); 
     } 
    }