java.lang.illegalstateexception試圖重新打開一個已經關閉的對象sqlitequery prblem

我在數據庫中執行一個簡單的插入查詢。
但我得到的例外如標題所示。
請幫幫我。java.lang.illegalstateexception試圖重新打開一個已經關閉的對象sqlitequery prblem

代碼如下。

公共無效insertAutoAlbumDetails（字符串SETID，字符串ALBUMID，字符串類型，字符串ALBUMNAME）{

String query = "INSERT INTO " 
      + ALBUM_DETAILS 
      + "(" 
      + ALBUM_ID 
      + "," 
      + ALBUM_NAME 
      + "," 
      + ALBUM_TYPE 
      + "," 
      + USER_ID 
      + "," 
      + ALBUM_SETID 
      + ") SELECT \"" 
      + albumid 
      + "\",\"" 
      + albumName 
      + "\",\"" 
      + Type 
      + "\",\"" 
      + AppPreferences.getAppPreferences(context).getString(
        AppConstants.USER_ID, "") 
      + "\",\"" 
      + setId 
      + "\" WHERE NOT EXISTS " 
      + "(" 
      + "SELECT 1 FROM " 
      + ALBUM_DETAILS 
      + " WHERE " 
      + ALBUM_ID 
      + "=\"" 
      + albumid 
      + "\" AND " 
      + USER_ID 
      + "=\"" 
      + AppPreferences.getAppPreferences(context).getString(
        AppConstants.USER_ID, "") + "\")"; 

    this.Query(query);//// i get exception on this line. 
}

收到以下異常...

02-11 18:11:35.370: W/System.err(26820): java.lang.IllegalStateException: attempt to re-open an already-closed object: SQLiteDatabase: /data/data/com.app.quirl/databases/canvera.sqlite 
02-11 18:11:35.370: W/System.err(26820): at android.database.sqlite.SQLiteClosable.acquireReference(SQLiteClosable.java:55) 
02-11 18:11:35.370: W/System.err(26820): at android.database.sqlite.SQLiteDatabase.executeSql(SQLiteDatabase.java:1648) 
02-11 18:11:35.370: W/System.err(26820): at android.database.sqlite.SQLiteDatabase.execSQL(SQLiteDatabase.java:1594) 
02-11 18:11:35.370: W/System.err(26820): at com.app.quirl.db.GetDB.Query(GetDB.java:50) 
02-11 18:11:35.370: W/System.err(26820): at com.app.quirl.db.AlbumDetailsDao.insertAutoAlbumDetails(AlbumDetailsDao.java:119) 
02-11 18:11:35.370: W/System.err(26820): at com.app.quirl.GetAutoCountService.uploadImages(GetAutoCountService.java:108) 
02-11 18:11:35.370: W/System.err(26820): at com.app.quirl.GetAutoCountService.access$0(GetAutoCountService.java:62) 
02-11 18:11:35.370: W/System.err(26820): at com.app.quirl.GetAutoCountService$startUploadImage.doInBackground(GetAutoCountService.java:56) 
02-11 18:11:35.370: W/System.err(26820): at com.app.quirl.GetAutoCountService$startUploadImage.doInBackground(GetAutoCountService.java:1) 
02-11 18:11:35.370: W/System.err(26820): at android.os.AsyncTask$2.call(AsyncTask.java:287)  
02-11 18:11:35.370: W/System.err(26820): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 
02-11 18:11:35.370: W/System.err(26820): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 
02-11 18:11:35.370: W/System.err(26820): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230) 
02-11 18:11:35.370: W/System.err(26820): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 
02-11 18:11:35.370: W/System.err(26820): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 
02-11 18:11:35.370: W/System.err(26820): at java.lang.Thread.run(Thread.java:856)

來源

2014-02-11 user1388887

您的數據庫已經關閉，那麼即使您嘗試將數據插入數據庫表中，您必須重新打開並插入數據。 –

例外，說：你想使用已關閉的連接來插入該值。確保連接在插入前對數據庫開放。

來源

2014-02-11 12:48:13

我的問題最終在於onCreate()，我在執行db.execSQL(TABLE_CREATE)後打電話db.close()。

onCreate自動調用後dbHelper.getReadableDatabase()。

這導致它崩潰，因爲它然後用一個已經關閉的對象檢索數據庫中的所有值。一旦我從onCreate中刪除db.close()，它一切正常。

您可能會打電話給dbHelper.getReadableDatabase()，但它有幫助嗎？

來源

2015-05-27 12:38:35 craned

java.lang.illegalstateexception試圖重新打開一個已經關閉的對象sqlitequery prblem

回答

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