Small problem of Using JSP built-in exception object

Symptoms:	When a page error occurs and an exception is thrown, it should be handled by error. jsp. However, we did not jump to the custom error interface as we expected, but to the default error interface of IE.
Root cause:	Error Code 500 is returned when error page of tomcat5.0 and later versions are processed. After ie gets code 500, it will check the length of the page. When the length is lower than a certain value, it will use its default 500 error page to replace the specified error page. It is called "user-friendly ".
Solution:	Modify iesettings: cancel the "tool-Internet option-advanced-show friendly HTTP Error message" option of IE, or add you The length of the error page.