如何循环遍历 Exception getCause() 以找到带有详细消息的根本原因 [英] How can I loop through Exception getCause() to find root cause with detail message

问题描述

我试图在休眠状态下调用 saveOrUpdate() 来保存数据.由于列具有唯一索引，因此当我通过 Eclipse 调试器查看时，它会抛出 ConstraintViolationException.

I am trying to call saveOrUpdate() in hibernate to save data. Since columns have unique index, so its throws ConstraintViolationException when I look through via Eclipse debugger.

因为在向表中插入数据时，不同的异常的根本原因可能不同.
我想知道，如何循环/遍历 getCause() 以检查异常及其消息的根本原因是什么.

Since root cause could be different for different exception while inserting data to table.
I wanted to know, how can I loop / traverse through getCause() to check what is the root cause of exception and its message.

更新:
感谢大家的友好回应，我想要的输出如下图所示:

我需要访问 detailMessage 字段.
(如果不能让我的问题更清楚，我真的很抱歉.)

Update:
Thanks everyone for your kind response, thing is I want output like in below image:

I need to access detailMessage field.
(I am really sorry If could not make my question more clear.)

谢谢.

推荐答案

Apache ExceptionUtils 提供如下方法:

The Apache ExceptionUtils provide the following method:

Throwable getRootCause(Throwable throwable) 

以及

String getRootCauseMessage(Throwable th) 

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