2 回答拋出的異常 也是BusinessException的（throw new BusinessException(EmBusinessError.USER_NOT_EXIST);）， 為什么if (exceptionx instanceof BusinessException)判斷的時候是 false ？

1 回答關于未知錯誤的處理。null指針還能set？BusinessException is never thrown in the method

2 回答說沒辦法強轉成 BusinessException

5 回答Exception 強轉 BusinessException 不成功 java.lang.ClassCastException: java.lang.NullPointerException cannot be cast to com.dmsc.error.BusinessException at com.dmsc.conrtoller.UserConrtoller.handlerException(UserConrtoller.java:46) ~[classes/:na]

9 回答inSessionOtpCode==null