CODEWITHSUNDEEP
javajsptomcatservletscustom-error-pages
Jomoos
Jomoos

Reputation: 13083

Adding error page blocks all servlets in tomcat 7

I have a dynamic web project in eclipse, which uses annotations to map servlets like this:

@WebServlet("/LoginController")
public class LoginController extends HttpServlet {
    ....
}

I also have jsp pages which uses these servlets, like this:

<form method="post" action="LoginController">

It all work like a char, until I decided to add error pages for errors 404 and 500. A little search on Google take me to java2s and I find out that I have to modify web.xml file to specify error pages. But my project doesn't have a web.xml file under WEB-INF directory(By the way, I am using Eclipse Indigo as the IDE and Tomcat 7.0.14). So I added one as follows:

<?xml version="1.0" encoding="iso-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
    <error-page>
        <error-code>
            404
        </error-code>
        <location>
            /404.html
        </location>
    </error-page>

    <error-page>
        <error-code>
            500
        </error-code>
        <location>
            /500.html
        </location>
    </error-page>
</web-app>

This, introduces a new problem. My servlets are not working anymore! All of my JSPs are working fine. But all requests to my servlets take me to the 404 error page. For example, I can get a login form as JSP's are working fine. But, when I submit my login form, ie., to LoginController it brings up 404 error page.

I think it may be solved by using web.xml file for servlet mapping instead of WebServlet annotation. But is there a way to use WebServlet annotation and also provide error pages? I will be happy if web.xml can be avoided to show error pages. Also, I don't like to edit any configuration files of tomcat. So, how can I solve the problem?

Upvotes: 0

Views: 1062

Answers (1)

JB Nizet
JB Nizet

Reputation: 691785

Remove the doc type, and use the following web-app element declaration:

<web-app xmlns="http://java.sun.com/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
  version="3.0">

The doc type you use declares your web-app as a 2.3 webapp, which doesn't have support for annotations.

Upvotes: 3

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