How can I write an "error page" -- that is, a servlet or JSP to report errors of other servlets?

Subrahmanyam Allamaraju

The Servlet 2.2 specification allows you to specify an error page (a servlet or a JSP) for different kinds of HTTP errors or ServletExceptions. You can specify this in deployment descriptor of the web application as:


where FooException is a subclass of ServletException.

The web container invokes this servlet in case of errors, and you can access the following information from the request object of error servlet/JSP: error code, exception type, and a message. Refer to section 9.8 of Servlet 2.2 spec.

[See also How can I debug my servlet?]

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