JSP/Servlet .war/.ear example needed.

[coolerking]

Can someone plz post a simple HelloWorld example where a JSP page links to a Servlet?

JSP page is always found. Clicking on the Servet link from within the JSP page yields nothing.

I'm having a tough time getting the Servlet to work.

[coolerking]

managed to figure this out. Included below is a simple example that you can try out yourself:

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Simple example to create a JSP page calling a Servlet and deploy the .war (or .ear) in JBoss
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1) create the foll directory structure:

/example2/WEB-INF/classes

2) store the files as follows

JSP File: /example2/index.jsp
Servlet File: /example2/WEB-INF/classes/HelloWorld.class
(compile the servet HelloWorld.java and store the class file)
web.xml: /example2/WEB-INF/web.xml
application.xml: /META-INF/application.xml

3) In JSP file, reference the Servlet as:

<a href="/example2/Servlet/HelloWorld/>

4) web.xml file

<?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>
<servlet>
 <servlet-name>HelloWorld</servlet-name>
 <servlet-class>HelloWorld</servlet-class>
</servlet>
<servlet-mapping>
 <servlet-name>HelloWorld</servlet-name>
 <url-pattern>/servlet/HelloWorld</url-pattern>
</servlet-mapping>
</web-app>

5) application.xml file

<?xml version="1.0" encoding="ISO-8859-1"?>

<application>
<display-name>Example 2</display-name>
<module>
<web>
<web-uri>example2.war</web-uri>
<context-root>/example2</context-root>
</web>
</module>
</application>

6) Create a .war file with the *contents* of example2 folder:

cd c:\example2
jar -cvf example2.war *

(Same thing can be done using winzip, but **enter example2 directory** and zip the contents to example2.war)

7) jar /META-INF/ + example2.war = example2.ear

8) Deploy example2.ear in /server/default/deploy directory OR skip #7 and deploy the example2.war directly into the deploy directory

9)
http://localhost:8080/example2/index.jsp ---> JSP page
http://localhost:8080/example2/servlet/HelloWorld ------> Servlet

Note to access URLs:
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The URL to access the JSP page will be:
http://localhost:8080/<.war_package_name/>/page.jsp

To access the Servlet, simply append the <url-pattern> defined for the Servlet like this:
http://localhost:8080/<.war_package_name/>/**<url-pattern_for_servlet>**

Deploying the .ear file instead of the .war has no bearing on the URLS.