Caused by: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0

阳光穿透心脏的1/2处 2022-02-03 14:43 240阅读 0赞

异常表现

> java.lang.RuntimeException: Unable to start activity ComponentInfo\{com.xxx.xxxxx/com.xxx.xxxx.activity.MainActivity\}: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0  
> at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2489)  
> at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2551)  
> at android.app.ActivityThread.access$1000(ActivityThread.java:169)  
> at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1432)  
> at android.os.Handler.dispatchMessage(Handler.java:111)  
> at android.os.Looper.loop(Looper.java:194)  
> at android.app.ActivityThread.main(ActivityThread.java:5581)  
> at java.lang.reflect.Method.invoke(Native Method)  
> at java.lang.reflect.Method.invoke(Method.java:372)  
> at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:968)  
> at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:763)  
> Caused by: java.lang.IndexOutOfBoundsException: Invalid index 0, size is 0  
> at java.util.ArrayList.throwIndexOutOfBoundsException(ArrayList.java:255)  
> at java.util.ArrayList.get(ArrayList.java:308)  
> at com.xxx.xxxx.activity.MainActivity.initData(MainActivity.java:249)  
> at com.xxx.xxxxx.base.BaseActivity.onCreate(BaseActivity.java:47)  
> at android.app.Activity.performCreate(Activity.java:6034)  
> at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1111)  
> at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2442)  
> … 10 more

解决方案：

> 查看数组是否为空，进行非空判断
> 
> 对orgList.size()进行判断是否为空，且大于0(见下面)

List<SysOrg> orgList=sysOrgService.getByUserId(su.getUserId());
    String orgName="";
    if (orgList!=null&&orgList.size()>0) {                
         orgName=orgList.get(0).getOrgName();
         su.setOrgName(orgName);
         list2.add(su);
     }

[https://blog.csdn.net/cxws110/article/details/77992928][https_blog.csdn.net_cxws110_article_details_77992928]

[https_blog.csdn.net_cxws110_article_details_77992928]: https://blog.csdn.net/cxws110/article/details/77992928