在我的应用程序中，我试图维护2个数据库表，但我的第二个表不存储值，但它显示成功的数据是存储。这是我的DbHelper类，我的其他java类和log cat .....
请帮助我.....
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DbHelper extends SQLiteOpenHelper {
private static final String DATABASE_NAME = "sri.db";
private static final int DATABASE_VERSION = 1;
public static final String TABLE_NAME = "login";
private static final String TABLE_CREATE ="CREATE TABLE " + TABLE_NAME + "(" +
"_id INTEGER PRIMARY KEY AUTOINCREMENT,"+
"username TEXT NOT NULL, password TEXT NOT NULL);";
private static final String DB_ADMIN = "INSERT INTO "+TABLE_NAME+"values(1, admin, password);";
public static final String TABLE_NAME_SAVE="saveinfo";
public static final String KEY_ID="_id";
public static final String KEY_URL="surl";
public static final String KEY_UID="suid";
public static final String KEY_PASS="spassword";
public static final String SCRIPT="CREATE TABLE" + TABLE_NAME_SAVE + "(" + "_id INTEGER PRIMARY KEY AUTOINCREMENT,"+
"surl TEXT NOT NULL, suid TEXT NOT NULL, spassword TEXT NOT NULL);";
public DbHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
System.out.println("In constructor");
}
@Override
public void onCreate(SQLiteDatabase db) {
try{
//Create Database
db.execSQL(TABLE_CREATE);
//create admin account
db.execSQL(DB_ADMIN);
//System.out.println("In onCreate");
db.execSQL(SCRIPT);
}catch(Exception e){
e.printStackTrace();
}
}
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
onCreate(db);
}
SQLiteDatabase db;
public Cursor getAllValues() {
// TODO Auto-generated method stub
SQLiteDatabase db = this.getWritableDatabase();
String[] clumns={KEY_ID,KEY_URL,KEY_UID,KEY_PASS};
return db.query(TABLE_NAME_SAVE, clumns, null, null, null, null, null);
}
void deleteAllRecords(){
db.delete(TABLE_NAME_SAVE, null, null);
}
void deleteOneRecord(String rowid){
db.delete(TABLE_NAME_SAVE, rowid +"="+KEY_ID, null);
}
public void openDatabase() {
// TODO Auto-generated method stub
}
}
这是我的其他java类userPageActivity.java类
public class UserpageActivity extends Activity implements OnClickListener {
Button save,reset,cancle,history;
EditText url,userid,password;
DbHelper mHelper;
SQLiteDatabase dataBase;
private String murl,muserid,mpass;
//private boolean isUpdate;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_userpage);
save=(Button)findViewById(R.id.bsave);
reset=(Button)findViewById(R.id.breset);
cancle=(Button)findViewById(R.id.bcancle);
history=(Button)findViewById(R.id.viewsi);
save.setOnClickListener(this);
reset.setOnClickListener(this);
cancle.setOnClickListener(this);
history.setOnClickListener(this);
url=(EditText)findViewById(R.id.urled);
userid=(EditText)findViewById(R.id.userided);
password=(EditText)findViewById(R.id.passworded);
mHelper=new DbHelper(this);
}
@Override
public void onClick(View v) {
// TODO Auto-generated method stub
switch(v.getId()){
case R.id.bsave:
murl=url.getText().toString();
muserid=userid.getText().toString();
mpass=password.getText().toString();
if(murl.length()>0 && muserid.length()>0 && password.length()>0)
{
saveData();
}
else
{
AlertDialog.Builder alertBuilder=new AlertDialog.Builder(UserpageActivity.this);
alertBuilder.setTitle("Invalid Data");
alertBuilder.setMessage("Please, Enter valid data");
alertBuilder.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
});
alertBuilder.create().show();
}
break;
case R.id.breset:
url.setText("");
userid.setText("");
password.setText("");
break;
case R.id.bcancle:
Intent i=new Intent(getApplicationContext(),StartActivity.class);
startActivity(i);
finish();
break;
case R.id.viewsi:
Intent ii= new Intent(getApplicationContext(),DisplayActivity.class);
startActivity(ii);
finish();
break;
}
}
private void saveData() {
// TODO Auto-generated method stub
dataBase=mHelper.getWritableDatabase();
ContentValues values=new ContentValues();
values.put("surl",murl);
values.put("suid", muserid);
values.put("spassword", mpass);
dataBase.insert(DbHelper.TABLE_NAME_SAVE, null, values);
Toast.makeText(getApplicationContext(), "Successfully Data saved...", Toast.LENGTH_SHORT).show();
dataBase.close();
Intent i=new Intent(getApplicationContext(),UserpageActivity.class);
startActivity(i);
//finish();
}
}
这是我的logcat .......
03-13 02:29:42.667: E/SQLiteLog(797): (1) no such table: saveinfo
03-13 02:29:42.687: E/SQLiteDatabase(797): Error inserting spassword=srikanth suid=www.srikanth.com surl=srikanth
03-13 02:29:42.687: E/SQLiteDatabase(797): android.database.sqlite.SQLiteException: no such table: saveinfo (code 1): , while compiling: INSERT INTO saveinfo(spassword,suid,surl) VALUES (?,?,?)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.database.sqlite.SQLiteStatement.<init>(SQLiteStatement.java:31)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.database.sqlite.SQLiteDatabase.insertWithOnConflict(SQLiteDatabase.java:1467)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.database.sqlite.SQLiteDatabase.insert(SQLiteDatabase.java:1339)
03-13 02:29:42.687: E/SQLiteDatabase(797): at com.example.personal.UserpageActivity.saveData(UserpageActivity.java:104)
03-13 02:29:42.687: E/SQLiteDatabase(797): at com.example.personal.UserpageActivity.onClick(UserpageActivity.java:58)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.view.View.performClick(View.java:4438)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.view.View$PerformClick.run(View.java:18422)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.os.Handler.handleCallback(Handler.java:733)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.os.Handler.dispatchMessage(Handler.java:95)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.os.Looper.loop(Looper.java:136)
03-13 02:29:42.687: E/SQLiteDatabase(797): at android.app.ActivityThread.main(ActivityThread.java:5017)
03-13 02:29:42.687: E/SQLiteDatabase(797): at java.lang.reflect.Method.invokeNative(Native Method)
03-13 02:29:42.687: E/SQLiteDatabase(797): at java.lang.reflect.Method.invoke(Method.java:515)
03-13 02:29:42.687: E/SQLiteDatabase(797): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
03-13 02:29:42.687: E/SQLiteDatabase(797): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
03-13 02:29:42.687: E/SQLiteDatabase(797): at dalvik.system.NativeStart.main(Native Method)
03-13 02:29:42.737: I/Choreographer(797): Skipped 48 frames! The application may be doing too much work on its main thread.
03-13 02:29:44.187: I/System.out(797): In constructor
03-13 02:29:44.597: I/Choreographer(797): Skipped 416 frames! The application may be doing too much work on its main thread.
03-13 02:29:47.107: I/Choreographer(797): Skipped 33 frames! The application may be doing too much work on its main thread.
当我运行UserPageActivity活动时，会显示此logcat ....并单击“保存信息”按钮...
出了什么问题？答案 0 :(得分：0)
您的CREATE TABLE存在语法问题：
public static final String SCRIPT="CREATE TABLE" + TABLE_NAME_SAVE + "(" + "_id INTEGER PRIMARY KEY AUTOINCREMENT,"+
"surl TEXT NOT NULL, suid TEXT NOT NULL, spassword TEXT NOT NULL);";
TABLE和名称之间需要空格，如下所示：
public static final String SCRIPT="CREATE TABLE " + TABLE_NAME_SAVE + "(" + "_id INTEGER PRIMARY KEY AUTOINCREMENT,"+
"surl TEXT NOT NULL, suid TEXT NOT NULL, spassword TEXT NOT NULL);";
你不应该在onCreate()中捕捉异常。当sqlite helper onCreate()成功返回时，框架认为一切正常并且表已经设置好。
如上所述修复onCreate()后，请卸载您的应用，以便再次调用onCreate()。