如何解决CursorIndexOutOfBoundsException [英] how to solve CursorIndexOutOfBoundsException
本文介绍了如何解决CursorIndexOutOfBoundsException的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
现在我正在使用sqllite所有存储的JSON values.The值JSON应用程序被正确地存储和我获取的数据下面的错误sqllite的发生,请帮我...
12-09 13:51:22.808:ERROR / AndroidRuntime(217):未捕获的处理程序:螺纹主力退出,由于未捕获的异常
12-09 13:51:22.808:ERROR / AndroidRuntime(217):android.database.CursorIndexOutOfBoundsException:指数-1要求,为5的尺寸
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在android.database.AbstractCursor.checkPosition(AbstractCursor.java:580)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:172)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:41)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在ez.com.Action_module_screen.setListval1(Action_module_screen.java:1059)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在ez.com.Action_module_screen $ 4.handleMessage(Action_module_screen.java:695)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在android.os.Handler.dispatchMessage(Handler.java:99)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在android.os.Looper.loop(Looper.java:123)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在android.app.ActivityThread.main(ActivityThread.java:4203)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在java.lang.reflect.Method.invokeNative(本机方法)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在java.lang.reflect.Method.invoke(Method.java:521)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:791)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
12-09 13:51:22.808:ERROR / AndroidRuntime(217):在dalvik.system.NativeStart.main(本机方法)
这是我的源:
光标光标= myDB.rawQuery(SELECT * FROM+ TABLE_NAME +,NULL);
如果(curser.moveToFirst())
{
INT K = 0;
的System.out.println(输入第一);
做
{
的System.out.println(进入第二个);
如果(STATUS1 ==真)
{
的System.out.println(进入第三个);
的for(int i = 0; I< items.length;我++)
{
的System.out.println(项目+ items.length);
的System.out.println(进入第四);
光标dbcur = myDB.rawQuery(SELECT * FROM+ TABLE_NAME +在哪里状态='+项目[我] +,NULL);
的System.out.println(进入第五);
INT TITLE = curser.getColumnIndex(标题);
字符串针锋相对= curser.getString(职称);
的System.out.println(值+针锋相对);
/ *字符串TITLE1 = dbcur.getString(dbcur.getColumnIndex(标题));
的System.out.println(标题+ TITLE1);
字符串名称1 = dbcur.getString(dbcur.getColumnIndex(名称));
的System.out.println(姓名+名1);
字符串OPEN1 = dbcur.getString(dbcur.getColumnIndex(打开));
的System.out.println(开放+ OPEN1);
字符串close1 = dbcur.getString(dbcur.getColumnIndex(关闭));
的System.out.println(关闭+ close1);
串NO1 = dbcur.getString(dbcur.getColumnIndex(否));
的System.out.println(否+ NO1);
no.add(NO1 +,+ K);
first.put(NO1 +,+ K,TITLE1);
second.put(NO1 +,+ K,NAME1);
third.put(NO1 +,+ K,OPEN1);
fourth.put(NO1 +,+ K,close1);
K = K + 1;
mylist中=分类(无,1,真正的); * /
}
}
}而(curser.moveToNext());
}
curser.close();
myDB.close();
}
解决方案
为您
如果(cursor.moveToFirst()及和放大器; cursor.getCount()> = 1){
做{
....
....
}而(cursor.moveToNext());
或您可以做
如果(cursor.getCount()> = 1){
而(cursor.moveToNext()){
....
....
}
的光标位置指数-1 intially
Now I am working json Application using sqllite for stored all json values.The values are stored correctly and i am fetching data for sqllite below error is occurred please help me...
12-09 13:51:22.808: ERROR/AndroidRuntime(217): Uncaught handler: thread main exiting due to uncaught exception
12-09 13:51:22.808: ERROR/AndroidRuntime(217): android.database.CursorIndexOutOfBoundsException: Index -1 requested, with a size of 5
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at android.database.AbstractCursor.checkPosition(AbstractCursor.java:580)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at android.database.AbstractWindowedCursor.checkPosition(AbstractWindowedCursor.java:172)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at android.database.AbstractWindowedCursor.getString(AbstractWindowedCursor.java:41)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at ez.com.Action_module_screen.setListval1(Action_module_screen.java:1059)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at ez.com.Action_module_screen$4.handleMessage(Action_module_screen.java:695)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at android.os.Handler.dispatchMessage(Handler.java:99)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at android.os.Looper.loop(Looper.java:123)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at android.app.ActivityThread.main(ActivityThread.java:4203)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at java.lang.reflect.Method.invokeNative(Native Method)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at java.lang.reflect.Method.invoke(Method.java:521)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:791)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:549)
12-09 13:51:22.808: ERROR/AndroidRuntime(217): at dalvik.system.NativeStart.main(Native Method)
This is my source:
Cursor curser=myDB.rawQuery("select * from "+TABLE_NAME+"",null);
if(curser.moveToFirst())
{
int k=0;
System.out.println("enter first");
do
{
System.out.println("enter second");
if(status1==true)
{
System.out.println("enter third");
for(int i=0;i<items.length;i++)
{
System.out.println("item"+items.length);
System.out.println("enter fourth");
Cursor dbcur = myDB.rawQuery("select * from "+TABLE_NAME+" where Status='"+items[i]+"'", null);
System.out.println("enter fifth");
int title=curser.getColumnIndex("Title");
String tit=curser.getString(title);
System.out.println("value"+tit);
/* String title1=dbcur.getString(dbcur.getColumnIndex("Title"));
System.out.println("title"+title1);
String name1=dbcur.getString(dbcur.getColumnIndex("Name"));
System.out.println("name"+name1);
String open1=dbcur.getString(dbcur.getColumnIndex("Open"));
System.out.println("open"+open1);
String close1=dbcur.getString(dbcur.getColumnIndex("Close"));
System.out.println("close"+close1);
String no1=dbcur.getString(dbcur.getColumnIndex("No"));
System.out.println("no"+no1);
no.add(no1+","+k);
first.put(no1+","+k, title1);
second.put(no1+","+k,name1);
third.put(no1+","+k, open1);
fourth.put(no1+","+k,close1);
k=k+1;
mylist=sorting(no,1,true); */
}
}
}while(curser.moveToNext());
}
curser.close();
myDB.close();
}
解决方案
Either you do
if(cursor.moveToFirst() && cursor.getCount() >= 1){
do{
....
....
}while(cursor.moveToNext());
OR you can do
if(cursor.getCount() >= 1){
while(cursor.moveToNext()){
....
....
}
The cursor is position at index -1 intially
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