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我在使用 SQLite 时遇到了最常见的错误。不幸的是，我找不到我的问题的答案，因为发生此错误时，我没有使用游标。插入+更新后出现此错误。有错误文字：

09-16 08:03:33.253: E/Cursor(1436): Finalizing a Cursor that has not been deactivated or closed. database = /data/data/*******/databases/settings.db, table = null, query = select * from preferences where pref_name = 'preference'
09-16 08:03:33.253: E/Cursor(1436): android.database.sqlite.DatabaseObjectNotClosedException: Application did not close the cursor or database object that was opened here
09-16 08:03:33.253: E/Cursor(1436):     at android.database.sqlite.SQLiteCursor.<init>(SQLiteCursor.java:210)
09-16 08:03:33.253: E/Cursor(1436):     at android.database.sqlite.SQLiteDirectCursorDriver.query(SQLiteDirectCursorDriver.java:53)
09-16 08:03:33.253: E/Cursor(1436):     at android.database.sqlite.SQLiteDatabase.rawQueryWithFactory(SQLiteDatabase.java:1345)
09-16 08:03:33.253: E/Cursor(1436):     at android.database.sqlite.SQLiteDatabase.rawQuery(SQLiteDatabase.java:1315)
09-16 08:03:33.253: E/Cursor(1436):     at ****.db.SettingsSQLiteHelper.updateValue(SettingsSQLiteHelper.java:132)
09-16 08:03:33.253: E/Cursor(1436):     at ****.PreferencesActivity$1.onClick(PreferencesActivity.java:67)
09-16 08:03:33.253: E/Cursor(1436):     at android.view.View.performClick(View.java:2408)
09-16 08:03:33.253: E/Cursor(1436):     at android.view.View$PerformClick.run(View.java:8816)
09-16 08:03:33.253: E/Cursor(1436):     at android.os.Handler.handleCallback(Handler.java:587)
09-16 08:03:33.253: E/Cursor(1436):     at android.os.Handler.dispatchMessage(Handler.java:92)
09-16 08:03:33.253: E/Cursor(1436):     at android.os.Looper.loop(Looper.java:123)
09-16 08:03:33.253: E/Cursor(1436):     at android.app.ActivityThread.main(ActivityThread.java:4627)
09-16 08:03:33.253: E/Cursor(1436):     at java.lang.reflect.Method.invokeNative(Native Method)
09-16 08:03:33.253: E/Cursor(1436):     at java.lang.reflect.Method.invoke(Method.java:521)
09-16 08:03:33.253: E/Cursor(1436):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
09-16 08:03:33.253: E/Cursor(1436):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
09-16 08:03:33.253: E/Cursor(1436):     at dalvik.system.NativeStart.main(Native Method)

有代码，在执行之后，当应用程序尝试执行任何 sql 时，我收到错误，如上所述：

public boolean updateValue(String property, String value) {
        SQLiteDatabase database = getWritableDatabase();
        try {
            ContentValues cv = new ContentValues();
            cv.put(COLUMN_PREFNAME, property);
            cv.put(COLUMN_PREFVALUE, value);            
            if (database.rawQuery(
                    "select * from " + TABLE_PREFERENCES + " where "
                            + COLUMN_PREFNAME + " = '" + property + "'", null)
                    .getCount() < 1) {
                Log.i("MyLog", "There wasn't property " + property
                        + " and system inserted new row");
                database.insert(TABLE_PREFERENCES, null, cv);
            } else {
                cv.clear();
                cv.put(COLUMN_PREFVALUE, value); 
                database.update(TABLE_PREFERENCES, cv, COLUMN_PREFNAME
                        + "='" + property + "'", null);
            }
            database.close();
        } catch (Exception e) {
            Log.e("MyLog", "Error in SettingsDB.updateValue :: " + e);
            database.close();
            return false;
        }
        return true;
    }

综上所述，应用程序的首次启动执行上面描述的方法来设置应用程序的偏好。使用此方法后，应用程序由于错误而无法运行任何 SQL。当我重新启动应用程序时，它运行良好，因为应用程序不会再次启动该方法。我相信有某种看不见的光标，我没有关闭它。您能否建议我，我应该添加或关闭什么来消除此错误？谢谢！

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2 回答 2

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正如ianhanniballake所说， rawQuery返回一个你没有关闭的游标。但是你没有使用任何游标变量，所以最好你应该关闭你的数据库而finally block不是try block

于 2013-09-16T05:32:56.947 回答
0

rawQuery返回一个您没有关闭的游标。

于 2013-09-16T05:00:59.747 回答