E / SQLiteLog (1893): (14) non può aprire il file alla row 30176 di

Sto usando questo tutorial per importre un database nella mia applicazione.

Funziona bene su API 10,

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  • ma sull'API 17 lancia il seguente errore:

    05-19 14:52:46.492: E/SQLiteLog(1893): (14) cannot open file at line 30176 of [00bb9c9ce4] 05-19 14:52:46.492: E/SQLiteLog(1893): (14) os_unix.c:30176: (2) open(/data/data/com.example.koday/databases/dictionary7.sqlite) - 05-19 14:52:46.492: E/SQLiteDatabase(1893): Failed to open database '/data/data/com.example.koday/databases/dictionary7.sqlite'. 05-19 14:52:46.492: E/SQLiteDatabase(1893): android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.database.sqlite.SQLiteConnection.nativeOpen(Native Method) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:209) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:193) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.database.sqlite.SQLiteConnectionPool.openConnectionLocked(SQLiteConnectionPool.java:463) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:185) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:177) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.database.sqlite.SQLiteDatabase.openInner(SQLiteDatabase.java:804) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.database.sqlite.SQLiteDatabase.open(SQLiteDatabase.java:789) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:694) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:669) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at com.example.koday.DataBaseHelper.checkDataBase(DataBaseHelper.java:82) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at com.example.koday.DataBaseHelper.createDataBase(DataBaseHelper.java:45) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at com.example.koday.MainActivity.frontquiz(MainActivity.java:70) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at com.example.koday.MainActivity.onCreate(MainActivity.java:64) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.app.Activity.performCreate(Activity.java:5104) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2230) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.app.ActivityThread.access$600(ActivityThread.java:141) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1234) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.os.Handler.dispatchMessage(Handler.java:99) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.os.Looper.loop(Looper.java:137) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at android.app.ActivityThread.main(ActivityThread.java:5039) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at java.lang.reflect.Method.invokeNative(Native Method) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at java.lang.reflect.Method.invoke(Method.java:511) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 05-19 14:52:46.492: E/SQLiteDatabase(1893): at dalvik.system.NativeStart.main(Native Method) 05-19 14:52:47.683: E/(1893): database aperto 05-19 14:52:47.683: E/SQLiteLog(1893): (1) no such table: dati 

    Ecco il mio codice:

     public class DataBaseHelper extends SQLiteOpenHelper { // The Android's default system path of your application database. private static String DB_PATH = "/data/data/com.example.koday/databases/"; private static String DB_NAME = "dictionary7.sqlite"; private SQLiteDatabase myDataBase; private final Context myContext; /** * Constructor Takes and keeps a reference of the passed context in order to * access to the application assets and resources. * * @param context */ public DataBaseHelper(Context context) { super(context, DB_NAME, null, 1); this.myContext = context; } /** * Creates a empty database on the system and rewrites it with your own * database. * */ public void createDataBase() throws IOException { boolean dbExist = checkDataBase(); if (dbExist) { // do nothing - database already exist } else { // By calling this method and empty database will be created into // the default system path // of your application so we are gonna be able to overwrite that // database with our database. this.getReadableDatabase(); try { copyDataBase(); } catch (IOException e) { throw new Error("Error copying database"); } } } /** * Check if the database already exist to avoid re-copying the file each * time you open the application. * * @return true if it exists, false if it doesn't */ private boolean checkDataBase() { SQLiteDatabase checkDB = null; try { String myPath = DB_PATH + DB_NAME; checkDB = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY); } catch (SQLiteException e) { // database does't exist yet. } if (checkDB != null) { checkDB.close(); } return checkDB != null ? true : false; } /** * Copies your database from your local assets-folder to the just created * empty database in the system folder, from where it can be accessed and * handled. This is done by transfering bytestream. * */ private void copyDataBase() throws IOException { // Open your local db as the input stream InputStream myInput = myContext.getAssets().open(DB_NAME); // Path to the just created empty db String outFileName = DB_PATH + DB_NAME; // Open the empty db as the output stream OutputStream myOutput = new FileOutputStream(outFileName); // transfer bytes from the inputfile to the outputfile byte[] buffer = new byte[1024]; int length; while ((length = myInput.read(buffer)) > 0) { myOutput.write(buffer, 0, length); } // Close the streams myOutput.flush(); myOutput.close(); myInput.close(); } public void openDataBase() throws SQLException { // Open the database String myPath = DB_PATH + DB_NAME; myDataBase = SQLiteDatabase.openDatabase(myPath, null, SQLiteDatabase.OPEN_READONLY); } @Override public synchronized void close() { if (myDataBase != null) myDataBase.close(); super.close(); } @Override public void onCreate(SQLiteDatabase db) { } @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { } // Add your public helper methods to access and get content from the // database. // You could return cursors by doing "return myDataBase.query(....)" so it'd // be easy // to you to create adapters for your views. // Getting single contact String getkword(String word) { SQLiteDatabase db = this.getReadableDatabase(); Cursor cursor = db.query("data", new String[] { "_id", "english", "korean" }, "english" + "=?", new String[] { word }, null, null, null, null); if (cursor != null) cursor.moveToFirst(); String kword = cursor.getString(2); // return contact db.close(); return kword; } // Getting All Contacts public Cursor getCursor() { // Select All Query String selectQuery = "SELECT * FROM " + "data"; SQLiteDatabase db = this.getWritableDatabase(); Cursor cursor = db.rawQuery(selectQuery, null); // looping through all rows and adding to list return cursor; } } 

    EDIT EDIT EDIT EDIT Ho autorizzato il mio manifesto:

     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/> 

    Grazie per l'aiuto!

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  • 3 Solutions collect form web for “E / SQLiteLog (1893): (14) non può aprire il file alla row 30176 di”

    Penso che il problema sia con la posizione del db per la versione diversa di SDK. prova questo

     private static String DB_PATH = ""; public DataBaseHelper(Context context) { super(context, DB_NAME, null, 1);// 1? its Database Version if(android.os.Build.VERSION.SDK_INT >= 4.2){ DB_PATH = context.getApplicationInfo().dataDir + "/databases/"; } else { DB_PATH = "/data/data/" + context.getPackageName() + "/databases/"; } this.mContext = context; } 

    Controllalo

    Come utilizzare un database esistente con un'applicazione Android

    Un'idea molto selvaggia è che non hai le autorizzazioni necessarie nel tuo android manifesto. Inoltre, sto usando lo stesso codice di codice per uno dei miei progetti sostituire checkDatabase () con:

     private boolean checkDataBase() { File dbFile = new File(DATABASE_PATH + DATABASE_NAME); return dbFile.exists(); } 

    Anche per l'uso del path:

     public static String getDBPath() { return Environment.getDataDirectory() + "/data/" + context.getPackageName() + "/databases/"; } 

    Ho avuto lo stesso errore. Ho scoperto che stavo entrando nel database durante l'importzione e l'aggiornamento delle tabelle nel database. quindi concludo che se si aggiorna le tabelle di base dati non è ansible utilizzarli nello stesso momento.

    L'Android è un fan Android di Google, tutto su telefoni Android, Android Wear, Android Dev e applicazioni Android Games e così via.