web.xml servlet mappings

MrTom · Mar 14, 2002

hi!

i'm trying to create a servlet mapping that maps everything to one servlet - but i want it to leave anything alone that already exists.

at the moment i'm using a <url-pattern> of /* but this even takes over things like index.html. i tried using /. but that didn't work either.

so i want the rule that if the file exists then serve it, otherwise run my servlet.

Thanks

pfist · Mar 14, 2002

Sorry, I don't have time to try this with a servlet but hopefully jsp example below will help you get to where you want to go. Any attempt to download a file that does not exist will generate a 404 and the server will redirect to the jsp page defined in location element.

In file myapp/WEB-INF/web.xml, add this descriptor for 404 File Not Found
<error-page>
<error-code>404</error-code>
<location>/myerrorpage.jsp</location>
</error-page>

myErrorPage.jsp -----------------
<%@ page isErrorPage="true" %>
<html>
<body>
myerrorpage message
</body>
</html>

MrTom · Mar 15, 2002

i hadn't thought of using the 404 error. the trouble is that it is not a 404 page.

i wanted to have a very simple form of login where the url mydom.com/mrtom would access a servlet that produced some dynamic content specific to mrtom. but i needed directories that already existed to work normally, eg. mydom.com/images/1.gif

i can't seem to find any documentation on the web.xml file. i can't even see the DTD file in my tomcat4 archive

pfist · Mar 15, 2002

You want the Servlet 2.3 specification, chapter srv.13 p.83 Deployment descriptor.

http://jcp.org/aboutJava/communityprocess/first/jsr053/index.html

pfist

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web.xml servlet mappings

MrTom

Programmer

pfist

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MrTom

Programmer

pfist

Programmer

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