Tomcat 6 Servlet not detected

Question

Ok, This should be basic, and I have used servlets many times before via eclipse and weblogic and no problems. However with Tomcat 6 I am having issue with Servlet mapping.

web.xml:

<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"> 

    <description>
      Servlet and JSP Examples.
    </description>
    <display-name>Servlet and JSP Examples</display-name>
    <servlet>
        <servlet-name>HelloWorldExample</servlet-name>
        <servlet-class>HelloWorldExample</servlet-class>
    </servlet>


    <servlet-mapping>
        <servlet-name>HelloWorldExample</servlet-name>
        <url-pattern>/HelloWorldExample</url-pattern>
    </servlet-mapping>

</web-app>

My web.xml is located in my WEB-INF folder, my servlet HelloWorldExample.class is located in WEB-INF/classes/

They are all located in tomcat/webapps/ch1/

As far as I can see it is all ok, however after hours of trial and error and multiple restarts i am still getting:

type Status report

message /ch1/HelloWorldExample

description The requested resource is not available.

http://localhost:8080/ch1/HelloWorldExample

screen shot of directory structure

folders

If someone could point out where I am making an error I would be eternally grateful :)

Can you access to any JSP in your war after deploying it into tomcat? — Luiggi Mendoza, Feb 20 '13 at 07:13
@LuiggiMendoza its not a war file. I am doing it manually. Its works file through Eclipe — Rhys, Feb 20 '13 at 07:25
@Jason It is using the default package. I am just testing. A package isn't required. It should default to classes root directory if no package is specified — Rhys, Feb 20 '13 at 07:28
put simple html welcome file in ch1/ to make sure app is recognized — JIV, Feb 20 '13 at 08:53

Jason · Answer 1 · 2013-02-20T08:40:26.777

2

You should put folder "ch1" under tomcat/webapps, not under tomcat/webapps/ROOT.

Follow this folder structure:

tomcat：
--webapps
----ch1
--------META-INF
--------WEB-INF
----------classes
----------lib
----------web.xml

edited Feb 20 '13 at 08:40

answered Feb 20 '13 at 07:15

Jason

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I have tried that. But still the same results. What URL would you suggest that I use? – Rhys Feb 20 '13 at 07:22
Can you post your folders structure ? – Jason Feb 20 '13 at 07:27
Are you sure web.xml is under META-INF, I think it is suppose to be under WEB-INF – Rhys Feb 20 '13 at 07:55

score 2 · Accepted Answer · edited May 23 '17 at 10:32

2

You should build and export a WAR file and deploy it on Tomcat, then it will automatically go on the right place. Also, pay attention on this part of your web.xml:

<servlet>
    <servlet-name>HelloWorldExample</servlet-name>
    <servlet-class>HelloWorldExample</servlet-class>
</servlet>

Servlet-class needs to be fully qualified class name, that is: your.package.classname (ignore if you are using default package, which is a bad practice generally). When you deal with this problem, I would suggest that you install Tomcat 7 and take advantage of Servlet 3.0 benefits, i.e. get rid of web.xml configuration and use servlet annotations. More info:

edited May 23 '17 at 10:32

Community

1
1

answered Feb 20 '13 at 07:30

Miljen Mikic

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8
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I agree packaging is best, but this is test and should work like this. Also annotaion and 3.0 is great,however the system I have use is 2.5 only. Hence the web.xml – Rhys Feb 20 '13 at 08:02
@Rhys I understand. However, as I suggested, package your project into war and deploy it - it should resolve your problem. – Miljen Mikic Feb 20 '13 at 08:08
I just deployed to war, Added to webapps root and restarted and no luck there either. I think my tomcat installation is faulty – Rhys Feb 20 '13 at 08:15
@Rhys How did you deploy it? Using Tomcat Web console (usually, http://localhost:8080/manager) or manually copying/extracting? I would strongly suggest first approach. – Miljen Mikic Feb 20 '13 at 08:23
1

it ended up being the fact that I compiled it with 1.6 and java_home is version 1.7. All working now. CHeers. – Rhys Feb 21 '13 at 04:50

score 0 · Answer 3 · answered Feb 20 '13 at 07:18

0

Your ch1 folder should be under webapps not under webapps/ROOT

answered Feb 20 '13 at 07:18

Alankar Srivastava

844
5
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score 0 · Answer 4 · answered Feb 20 '13 at 07:42

0

please move the ch1 folder to webapps from webapps/ROOT And remember to restart the Tomcat Server after this change

answered Feb 20 '13 at 07:42

Sudhakar

4,823
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Tomcat 6 Servlet not detected

4 Answers4