Wir haben eine SQLite-Datenbank in unserer Anwendung. Es funktioniert gut für alle Benutzer, aber nur wenige von ihnen erleben den Caused by: android.database.sqlite.SQLiteException: no such table: generalSettings (code 1): , while compiling: select * from generalSettings
Fehler.verursacht durch: android.database.sqlite.SQLiteException: keine solche Tabelle: (Code 1) Android
Unten ist meine SQLite-Helfer-Klasse, um die db und das Fehlerprotokoll zu erstellen. In assert/Master.db
haben wir die Tabelle generalSettings
. Aber nach dem Kopieren auf das Gerät fehlt die Tabelle. Dies geschieht nur für wenige Benutzer. Ich suchte nach der Lösung, aber ich kann den genauen nicht finden. Team bitte hilf mir das zu beheben.
Code:
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.StringWriter;
import android.content.Context;
import android.content.Intent;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.net.Uri;
import android.util.Log;
public class InstallDB extends SQLiteOpenHelper {
Context ctx;
String DBNAME;
String DBPATH;
Modules modObj = new Modules();
public InstallDB(Context context, String name) {
super(context, name, null, 1);
this.ctx = context;
this.DBNAME = name;
this.DBPATH = this.ctx.getDatabasePath(DBNAME).getAbsolutePath();
Log.e("Path 1", DBPATH);
}
public void createDataBase() {
boolean dbExist = checkDataBase();
SQLiteDatabase db_Read = null;
if (!dbExist) {
synchronized (this) {
db_Read = this.getReadableDatabase();
Log.e("Path 2", this.getReadableDatabase().getPath());
db_Read.close();
copyDataBase();
Log.v("copyDataBase---", "Successfully");
}
// try {
// } catch (IOException e) {
// throw new Error("Error copying database");
// }
}
}
private boolean checkDataBase() {
SQLiteDatabase checkDB = null;
try {
String myPath = DBPATH;
checkDB = SQLiteDatabase.openDatabase(myPath, null,
SQLiteDatabase.OPEN_READWRITE);
} catch (Exception e) {
Log.i("SQLite Error", "database does't exist yet.");
}
if (checkDB != null) {
checkDB.close();
}
return checkDB != null ? true : false;
}
private void copyDataBase() {
try {
InputStream myInput = ctx.getAssets().open(DBNAME);
String outFileName = DBPATH;
OutputStream myOutput = new FileOutputStream(outFileName);
byte[] buffer = new byte[1024 * 3];
int length = 0;
while ((length = myInput.read(buffer)) > 0) {
myOutput.write(buffer, 0, length);
}
myOutput.flush();
myOutput.close();
myInput.close();
} catch (Exception e) {
Modules.stacTaceElement = e.getStackTrace();
StringWriter stackTrace1 = new StringWriter();
e.printStackTrace(new PrintWriter(stackTrace1));
System.err.println(stackTrace1);
Intent send = new Intent(Intent.ACTION_SENDTO);
String uriText;
uriText = "mailto:[email protected]"
+ "&subject=Error Report"
+ "&body="
+ stackTrace1.toString();
uriText = uriText.replace(" ", "%20");
Uri uri = Uri.parse(uriText);
send.setData(uri);
ctx.startActivity(Intent.createChooser(send, "Send mail..."));
// TODO: handle exception
}
}
@Override
public void onCreate(SQLiteDatabase db) {
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
}
}
Fehlerprotokoll:
java.lang.RuntimeException: Unable to start activity ComponentInfo{palmagent.FidelityAgent.Two/palmagent.FidelityAgent.Two.PassNew}: android.database.sqlite.SQLiteException: no such table: generalSettings (code 1): , while compiling: select * from generalSettings
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2269)
at android.app.ActivityThread.access$800(ActivityThread.java:139)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1210)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5102)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:785)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:601)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.database.sqlite.SQLiteException: no such table: generalSettings (code 1): , while compiling: select * from generalSettings
at android.database.sqlite.SQLiteConnection.nativePrepareStatement(Native Method)
at android.database.sqlite.SQLiteConnection.acquirePreparedStatement(SQLiteConnection.java:889)
at android.database.sqlite.SQLiteConnection.prepare(SQLiteConnection.java:500)
at android.database.sqlite.SQLiteSession.prepare(SQLiteSession.java:588)
at android.database.sqlite.SQLiteProgram.<init>(SQLiteProgram.java:58)
at android.database.sqlite.SQLiteQuery.<init>(SQLiteQuery.java:37)
at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:44)
at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1314)
at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1253)
at palmagent.FidelityAgent.Two.masterDatabase.selectquery(masterDatabase.java:59)
at palmagent.FidelityAgent.Two.Modules.checkDatabase(Modules.java:28825)
at palmagent.FidelityAgent.Two.PassNew$LoaduserDetails.onPreExecute(PassNew.java:140)
at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:587)
at android.os.AsyncTask.execute(AsyncTask.java:535)
at palmagent.FidelityAgent.Two.PassNew.onCreate(PassNew.java:120)
at android.app.Activity.performCreate(Activity.java:5248)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1110)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2173)
... 11 more
Schreiben Sie eine bereitgestellte Kopie Ihrer Datenbank auf diejenige, die Android erstellen würde? Ich denke, das ist eine schlechte Idee, da Android einige private Daten in der Datenbank selbst hält. – brummfondel
@brummfondel - Wir haben 10 Tabellen und einige statische Daten im Db. Das Erstellen der Datenbank dauert lange. Also haben wir die Datenbank in Android kopiert. Bitte lassen Sie mich den besten Weg wissen, dies zu tun. – Sniper
Ich habe das gleiche Problem nach dem Testen meiner App auf einigen Geräten und Emulatoren http://stackoverflow.com/questions/24406326/no-such-table-in-api-2-2 –