====================问题描述====================
异常日志如下:
Caused by: java.lang.IllegalStateException: Cannot perform this operation because the connection pool has been closed.
at android.database.sqlite.SQLiteConnectionPool.throwIfClosedLocked(SQLiteConnectionPool.java:962)
at android.database.sqlite.SQLiteConnectionPool.waitForConnection(SQLiteConnectionPool.java:599)
at android.database.sqlite.SQLiteConnectionPool.acquireConnection(SQLiteConnectionPool.java:348)
at android.database.sqlite.SQLiteSession.acquireConnection(SQLiteSession.java:894)
at android.database.sqlite.SQLiteSession.executeForCursorWindow(SQLiteSession.java:834)
at android.database.sqlite.SQLiteQuery.fillWindow(SQLiteQuery.java:62)
at android.database.sqlite.SQLiteCursor.fillWindow(SQLiteCursor.java:143)
at android.database.sqlite.SQLiteCursor.getCount(SQLiteCursor.java:133)
at android.database.AbstractCursor.moveToPosition(AbstractCursor.java:196)
at android.database.AbstractCursor.moveToNext(AbstractCursor.java:244)
我知道这是数据库连接被关闭导致的,但是怎么解决这个问题呢,网上能找到的解决办法都试了,还是会报这个问题,请教高人指点!
====================解决方案1====================
那就在使用后才关闭啊
====================解决方案2====================
是不是没有关闭cursor,然后再次访问造成的异常
====================解决方案3====================
光这么点代码难办啊,最好能描述下db的使用的流程
====================解决方案4====================
放线程里有问题,放服务里没问题?
是不是线程没执行完(数据库没来得及close)就强制结束了。
====================解决方案5====================
sqllite 是不支持多线程 同时 读写的,是不是这个问题? |