"ファイルが暗号化されているかデータベースではありません"エラー

Question

データベースをAndroidスタジオにインポートしようとしています。 今、資産フォルダにデータベースがあり、それをリストビューに表示しています。 「ファイルが暗号化されているか、データベースではありません」というエラーが表示されます。

Android Studioがサポートしているデータベースファイルの種類がわかりません。私はSQLを使用しています。 データベースHelperクラスIngredient Helperという名前を付けました。

私はあなたが提供できる提案を感謝します。ここに私のlogcatとjavaファイルがあります。

ありがとうございました！

Logcat：

06-15 21:04:52.504 2157-2157/? E/NetworkScheduler.SchedulerReceiver﹕ Invalid parameter app 
06-15 21:04:52.504 2157-2157/? E/NetworkScheduler.SchedulerReceiver﹕ Invalid package name : Perhaps you didn't include a PendingIntent in the extras? 
06-15 21:04:52.787 3023-3023/? E/memtrack﹕ Couldn't load memtrack module (No such file or directory) 
06-15 21:04:52.788 3023-3023/? E/android.os.Debug﹕ failed to load memtrack module: -2 

06-15 21:04:52.940 3054-3054/? E/SQLiteLog﹕ (14) cannot open file at line 31278 of [2ef4f3a5b1] 
06-15 21:04:52.940 3054-3054/? E/SQLiteLog﹕ (14) os_unix.c:31278: (2) open(/data/data/com.dsallee.elsdbexecute/databases/sqlite3.sql) - 
06-15 21:04:52.941 3054-3054/? E/SQLiteDatabase﹕ Failed to open database '/data/data/com.dsallee.elsdbexecute/databases/sqlite3.sql'. 
android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database 
     at android.database.sqlite.SQLiteConnection.nativeOpen(Native Method) 
     at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:207) 
     at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:191) 
     at android.database.sqlite.SQLiteConnectionPool.openConnectionLocked(SQLiteConnectionPool.java:463) 
     at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:185) 
     at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:177) 
     at android.database.sqlite.SQLiteDatabase.openInner(SQLiteDatabase.java:806) 
     at android.database.sqlite.SQLiteDatabase.open(SQLiteDatabase.java:791) 
     at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:694) 
     at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:669) 
     at com.dsallee.elsdbexecute.IngredientHelper.DBExists(IngredientHelper.java:69) 
     at com.dsallee.elsdbexecute.IngredientHelper.createDB(IngredientHelper.java:53) 
     at com.dsallee.elsdbexecute.IngredientHelper.createDatabase(IngredientHelper.java:48) 
     at com.dsallee.elsdbexecute.MainActivity.onCreate(MainActivity.java:34) 
     at android.app.Activity.performCreate(Activity.java:6237) 
     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
     at android.app.ActivityThread.-wrap11(ActivityThread.java) 
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
     at android.os.Handler.dispatchMessage(Handler.java:102) 
     at android.os.Looper.loop(Looper.java:148) 
     at android.app.ActivityThread.main(ActivityThread.java:5417) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

06-15 21:04:52.941 3054-3054/? E/SqlHelper﹕ database not found 

06-15 21:04:58.360 3054-3054/? E/SQLiteLog﹕ (26) file is encrypted or is not a database 
06-15 21:04:58.360 3054-3054/? E/DefaultDatabaseErrorHandler﹕ Corruption reported by sqlite on database: /data/data/com.dsallee.elsdbexecute/databases/sqlite3.sql 
06-15 21:04:58.360 3054-3054/? E/DefaultDatabaseErrorHandler﹕ deleting the database file: /data/data/com.dsallee.elsdbexecute/databases/sqlite3.sql 
06-15 21:04:58.360 3054-3054/? E/SQLiteLog﹕ (14) cannot open file at line 31278 of [2ef4f3a5b1] 
06-15 21:04:58.360 3054-3054/? E/SQLiteLog﹕ (14) os_unix.c:31278: (2) open(/data/data/com.dsallee.elsdbexecute/databases/sqlite3.sql) - 
06-15 21:04:58.360 3054-3054/? E/SQLiteDatabase﹕ Failed to open database '/data/data/com.dsallee.elsdbexecute/databases/sqlite3.sql'. 
android.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database 
     at android.database.sqlite.SQLiteConnection.nativeOpen(Native Method) 
     at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:207) 
     at android.database.sqlite.SQLiteConnection.open(SQLiteConnection.java:191) 
     at android.database.sqlite.SQLiteConnectionPool.openConnectionLocked(SQLiteConnectionPool.java:463) 
     at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:185) 
     at android.database.sqlite.SQLiteConnectionPool.open(SQLiteConnectionPool.java:177) 
     at android.database.sqlite.SQLiteDatabase.openInner(SQLiteDatabase.java:806) 
     at android.database.sqlite.SQLiteDatabase.open(SQLiteDatabase.java:794) 
     at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:694) 
     at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:669) 
     at com.dsallee.elsdbexecute.IngredientHelper.openDatabase(IngredientHelper.java:121) 
     at com.dsallee.elsdbexecute.MainActivity.onCreate(MainActivity.java:35) 
     at android.app.Activity.performCreate(Activity.java:6237) 
     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107) 
     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369) 
     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
     at android.app.ActivityThread.-wrap11(ActivityThread.java) 
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
     at android.os.Handler.dispatchMessage(Handler.java:102) 
     at android.os.Looper.loop(Looper.java:148) 
     at android.app.ActivityThread.main(ActivityThread.java:5417) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 

06-15 21:04:58.360 3054-3054/? E/Error﹕ Error in codeandroid.database.sqlite.SQLiteCantOpenDatabaseException: unknown error (code 14): Could not open database 

主な活動

public class MainActivity extends Activity { 

private IngredientHelper dbIngredientHelper = null; 
private Cursor ourCursor = null; 
private IngredientAdapter adapter = null; 
private CursorAdapter CursorAdapter = null; 

@Override 
public void onCreate(Bundle savedInstanceState) { 

    try { 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     ListView myListView = (ListView) findViewById(R.id.myListView); 


     dbIngredientHelper = new IngredientHelper(this); // initializes helper 
     dbIngredientHelper.createDatabase(); 
     dbIngredientHelper.openDatabase(); 

     ourCursor = dbIngredientHelper.getCursor(); 
     startManagingCursor(ourCursor); 

     adapter = new IngredientAdapter(ourCursor); 

     myListView.setAdapter(adapter); 
    } catch (Exception e) { 

     Log.e("Error", "Error in code" + e.toString()); 
     e.printStackTrace(); 
    } 
} 


class IngredientAdapter extends CursorAdapter { 
    IngredientAdapter(Cursor c) { 
     super(MainActivity.this, c); 
    } 

    @Override 
    public void bindView(View row, Context ctxt, 
         Cursor c) { 
     IngredientHolder holder = (IngredientHolder) row.getTag(); 
     holder.populateFrom(c, dbIngredientHelper); 
    } 

    @Override 
    public View newView(Context ctxt, Cursor c, 
         ViewGroup parent) { 
     LayoutInflater inflater = getLayoutInflater(); 
     View row = inflater.inflate(R.layout.row, parent, false); 
     IngredientHolder holder = new IngredientHolder(row); 
     row.setTag(holder); 
     return (row); 
    } 
} 

static class IngredientHolder { 
    private TextView note = null; 

    IngredientHolder(View row) { 
     note = (TextView)row.findViewById(R.id.noteText); 
    } 

    void populateFrom(Cursor c, IngredientHelper r) { 
     note.setText(r.getName(c)); 

    } 
} 
} 

成分ヘルパー

class IngredientHelper extends SQLiteOpenHelper { 

private static final String DATABASE_PATH = "/data/data/com.dsallee.elsdbexecute/databases/"; 
private static final String DATABASE_NAME = "redo.sql"; 
private static final int SCHEMA_VERSION = 1; 

public static final String TABLE_NAME = "ELS"; 
public static final String COLUMN_ID = "_id"; 
public static final String COLUMN_TITLE = "number"; 

public SQLiteDatabase dbSqlite; 

private final Context myContext; 
public IngredientHelper(Context context) { 
    super(context, DATABASE_NAME, null, SCHEMA_VERSION); 
    this.myContext = context; 
} 

@Override 
public void onCreate(SQLiteDatabase db) { 

} 

@Override 
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 

} 

public void createDatabase() { 
    createDB(); 
} 

private void createDB() { 

    boolean dbExist = DBExists(); 

    if (!dbExist) { 

     this.getReadableDatabase(); 
     copyDBFromResource(); 

    } 
} 

private boolean DBExists() { 

    SQLiteDatabase db = null; 

    try { 
     String databasePath = DATABASE_PATH + DATABASE_NAME; 
     db = SQLiteDatabase.openDatabase(databasePath, null, 
       SQLiteDatabase.OPEN_READWRITE); 
     db.setLocale(Locale.getDefault()); 
     db.setLockingEnabled(true); 
     db.setVersion(1); 

    } catch (SQLiteException e) { 

     Log.e("SqlHelper", "database not found"); 

    } 

    if (db != null) { 
     db.close(); 

    } 

    return db != null ? true : false; 
} 

private void copyDBFromResource() { 
    InputStream inputStream = null; 
    OutputStream outStream = null; 
    String dbFilePath = DATABASE_PATH + DATABASE_NAME; 

    try { 

     inputStream = myContext.getAssets().open(DATABASE_NAME); 

     outStream = new FileOutputStream(dbFilePath); 

     byte[] buffer = new byte[1024]; 
     int length; 
     while ((length = inputStream.read(buffer)) > 0) { 
      outStream.write(buffer, 0, length); 
     } 

     outStream.flush(); 
     outStream.close(); 
     inputStream.close(); 

    } catch (IOException e) { 

     throw new Error("Problem copying database from resource file."); 

    } 

} 

public void openDatabase() throws SQLException { 

    String myPath = DATABASE_PATH + DATABASE_NAME; 
    dbSqlite = SQLiteDatabase.openDatabase(myPath, null, 
      SQLiteDatabase.OPEN_READWRITE); 

} 

@Override 
public synchronized void close() { 

    if (dbSqlite != null) { 
     dbSqlite.close(); 
    } 
    super.close(); 
} 


public Cursor getCursor() { 

    SQLiteQueryBuilder queryBuilder = new SQLiteQueryBuilder(); 
    queryBuilder.setTables(TABLE_NAME); 
    String[] asColumnsToReturn = new String[]{COLUMN_ID, COLUMN_TITLE}; 

    Cursor mCursor = queryBuilder.query(dbSqlite, asColumnsToReturn, null, 
      null, null, null, null); 

    // ACTUAL TABLE QUERY ABOVE 
    // COLUMNS TO RETURN IS COLUMNS TO BE DISPLAYED IN THE LISTVIEW 

    return mCursor; 
} 

public String getName(Cursor c) { 
    return (c.getString(1)); 
    // GET COLUMN INDEX 1 FROM ASCOLUMNSTORETURN 
} 
} 

Answer 1

私の古いDBは私がその場合 SQLCipherにパスワードを設定すべきかそう暗号化されていないので、 Androidはパスワードとして ""を使用して、暗号化されていないデータベースを開くことができます。

私はどちらか次にパスワード文字列にnullを渡して試したし、また、「」でなく、運 ています

あなたはあなたのコードのバグ、または データベースはすでに別のパスワードで暗号化されている、または を持っていますデータベースが壊れています。