当我运行该代码时,我在db.insert内部有一个异常：
08-29 15:40:17.519: E/sqliteDatabase(3599): android.database.sqlite.sqliteConstraintException: column date is not unique (code 19)
这是正常的,因为我已经把这个价值作为一个关键.
所以在这种情况下,我做了一个sqliteConstraintException的捕获,但是当我运行代码时,我从来没有在catch中.
我究竟做错了什么？
try {
db.insert(TABLE_STATISTICS,null,values);
} catch (sqliteConstraintException e) {
Log.d("entered","entered the exception");
ContentValues valuesUp = new ContentValues();
valuesUp.put((isMT ? KEY_MT : KEY_MO),change);
db.update(TABLE_STATISTICS,valuesUp,KEY_DATE + "=?",new String[] { message_date });
}
谢谢.
整个日志：
08-29 15:55:55.870: E/sqliteDatabase(3828): Error inserting MO=0 date=2012-08-08 MT=1 08-29 15:55:55.870: E/sqliteDatabase(3828): android.database.sqlite.sqliteConstraintException: column date is not unique (code 19) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.database.sqlite.sqliteConnection.nativeExecuteForLastInsertedRowId(Native Method) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.database.sqlite.sqliteConnection.executeForLastInsertedRowId(sqliteConnection.java:775) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.database.sqlite.sqliteSession.executeForLastInsertedRowId(sqliteSession.java:788) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.database.sqlite.sqliteStatement.executeInsert(sqliteStatement.java:86) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.database.sqlite.sqliteDatabase.insertWithOnConflict(sqliteDatabase.java:1469) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.database.sqlite.sqliteDatabase.insert(sqliteDatabase.java:1339) 08-29 15:55:55.870: E/sqliteDatabase(3828): at xx.xxx.xxx.xx.xxxx.StatisticsHolderDay.updateCounterNextStep(StatisticsHolderDay.java:124) 08-29 15:55:55.870: E/sqliteDatabase(3828): at xx.xxx.xxx.xx.xxxx.StatisticsHolderDay.updateCounter(StatisticsHolderDay.java:102) 08-29 15:55:55.870: E/sqliteDatabase(3828): at xx.xxx.xxx.xx.xxxx.LastMonthActivity.onStart(LastMonthActivity.java:146) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1163) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.app.Activity.performStart(Activity.java:5018) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2032) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.app.ActivityThread.access$600(ActivityThread.java:130) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.os.Handler.dispatchMessage(Handler.java:99) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.os.Looper.loop(Looper.java:137) 08-29 15:55:55.870: E/sqliteDatabase(3828): at android.app.ActivityThread.main(ActivityThread.java:4745) 08-29 15:55:55.870: E/sqliteDatabase(3828): at java.lang.reflect.Method.invokeNative(Native Method) 08-29 15:55:55.870: E/sqliteDatabase(3828): at java.lang.reflect.Method.invoke(Method.java:511) 08-29 15:55:55.870: E/sqliteDatabase(3828): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 08-29 15:55:55.870: E/sqliteDatabase(3828): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 08-29 15:55:55.870: E/sqliteDatabase(3828): at dalvik.system.NativeStart.main(Native Method)
解决方法
请改用db.insertOrThrow().
