"파일이 암호화되었거나 데이터베이스가 아닙니다"오류

Question

데이터베이스를 Android Studio로 가져 오려고합니다. 지금은 자산 폴더에 데이터베이스가 있으며이를 목록보기에 표시하고 있습니다. "파일이 암호화되었거나 데이터베이스가 아닙니다."오류가 발생합니다.

Android Studio에서 지원하는 데이터베이스 파일 형식이 확실하지 않습니다. SQL을 사용하고 있습니다. 데이터베이스 헬퍼 클래스 Ingredient Helper에 이름을 지정했습니다.

나는 당신이 제안 할 수있는 제안을 정말로 기뻐할 것입니다. 여기에 내 logcat 및 java 파일이 있습니다.

감사합니다!

로그 캣 :

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 

주요 활동

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)); 

    } 
} 
} 

성분 도우미

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

예전 DB는 전 대한 경우 SQLCipher에 암호를 설정해야하는지 이렇게 암호화되지 않기 때문에 Android는 비밀번호로 ''을 (를) 사용하여 암호화되지 않은 데이터베이스를 열 수 있습니다.

내가 ""암호 문자열과도 함께 통과 null를 시도하지 그러나 운이 한 다음 중 하나를

당신은 당신의 코드에서 버그가

, 또는 데이터베이스가 이미 다른 암호로 암호화, 또는 한다 데이터베이스가 손상되었습니다.