web.xml tag problem

[nexus nuitari]

This is my web.xml it works fine ...

<?xml version="1.0" encoding="ISO-8859-1"?>
<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_2_5.xsd"
   version="2.5">
        <servlet-name>Ch3Beer</servlet-name>
        <servlet-class>com.example.web.BeerSelect</servlet-class>

        <servlet-name>Ch3Beer</servlet-name>
        <url-pattern>/SelectBeer.do</url-pattern>
</web-app>

but when I try to make it

<?xml version="1.0" encoding="ISO-8859-1"?>
<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_2_5.xsd"
   version="2.5">
        <servlet>
                <servlet-name>Ch3Beer</servlet-name>
                <servlet-class>com.example.web.BeerSelect</servlet-class>
        </servlet>

        <servlet-mapping>
                <servlet-name>Ch3Beer</servlet-name>
                <url-pattern>/SelectBeer.do</url-pattern>
        </servlet-mapping>


</web-app>

This doesnt work why??


using ubuntu 10.04
java version "1.6.0_18"
OpenJDK Runtime Environment (IcedTea6 1.8.1) (6b18-1.8.1-0ubuntu1)
OpenJDK Server VM (build 16.0-b13, mixed mode)
editor: vi

[Paul Sturrock]

What is the difference and how does it not work?

[nexus nuitari]

# <servlet>
# <servlet-name>Ch3Beer</servlet-name>
# <servlet-class>com.example.web.BeerSelect</servlet-class>
# </servlet>
#
# <servlet-mapping>
# <servlet-name>Ch3Beer</servlet-name>
# <url-pattern>/SelectBeer.do</url-pattern>
# </servlet-mapping>

when i make it I got 404

[Paul Sturrock]

Ah - it makes more sense now you've edited your post.

An HTTP 404 error means a resource cannot be found. What URL do you access?

[nexus nuitari]

http://localhost:8080/Beer-v1/SelectBeer.do gets 404

[Abimaran Kugathasan]

nexus nuitari wrote:http://localhost:8080/Beer-v1/SelectBeer.do gets 404

Change it to http://localhost:8080/SelectBeer.do. I think, it'll work.

[sreejith sreedharan]

Please check your URL cases are correct .
Once you give the URL mapping , you need to redeploy the application inorder for the apps to work.

[wangxuehui xuehui]

nexus nuitari wrote:# <servlet>
# <servlet-name>Ch3Beer</servlet-name>
# <servlet-class>com.example.web.BeerSelect</servlet-class>
# </servlet>
#
# <servlet-mapping>
# <servlet-name>Ch3Beer</servlet-name>
# <url-pattern>/SelectBeer.do</url-pattern>
# </servlet-mapping>

when i make it I got 404

I think you can change the url-pattern to /SelectBeer

[Paul Sturrock]

Abimaran Kugathasan wrote:

nexus nuitari wrote:http://localhost:8080/Beer-v1/SelectBeer.do gets 404

Change it to http://localhost:8080/SelectBeer.do. I think, it'll work.

No - all web application URLs are relative to the context they are deployed in. This will only work if the application is deployed as the root application (to use Tomcat's term).

[Paul Sturrock]

wangxuehui xuehui wrote:

nexus nuitari wrote:# <servlet>
# <servlet-name>Ch3Beer</servlet-name>
# <servlet-class>com.example.web.BeerSelect</servlet-class>
# </servlet>
#
# <servlet-mapping>
# <servlet-name>Ch3Beer</servlet-name>
# <url-pattern>/SelectBeer.do</url-pattern>
# </servlet-mapping>

when i make it I got 404

I think you can change the url-pattern to /SelectBeer

Nope. There is no wild card in the url pattern so /SelectBeer will not match a request for /SelectBeer.do.

[nexus nuitari]

problem still remaining.. any ideas

[Paul Sturrock]

nexus nuitari wrote:http://localhost:8080/Beer-v1/SelectBeer.do gets 404

So you need a web application deployed with the with the context "Beer-v1". This is case sensitive. If you deploy a static file at the root of this web application can you access this no problem? (e.g. http://localhost:8080/Beer-v1/test.html)

In your web.xml you need a mapping for /SelectBeer.do. Again this is case sensitive - is it there?

Is anything else mapped in your web.xml?

[nexus nuitari]

thank you Paul Sturrock I don't know how but it works fine now I didn't change anything but its working now

[Soniya Ahuja]

Hi Nexus,
I think you must have not restarted the server after you made changes in web.xml. Next time you make changes to web.xml, try restarting the server and check