Display the exception information in struts on the JSP page

It is quite convenient to handle exceptions in struts. Whether it is struts1 or struts2, you can configure global exceptions ~

To print the exception information on the page:

How to deal with struts1:

<C: Out value = "$ {requestscope ['org. Apache. Struts. Action. exception']. Message}"/>

Use tags directly in struts2:

<S: property value = "exception"/>: outputs the exception information and throws the information you write.

<S: property value = "exceptionstack"/>: outputs exception stack information, which contains many details.