Java EE (Java Enterprise Edition) General Discussion

Hello everyone!

I am trying to learn how to develop enterprise applications with EJB 3 + STRUTS 2 + glassfish (and eclipse).

I wanted to have a very simple application (helloworld like) but i am having problems with the EAR package configuration and how to access my bean from my web layer...
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I have 2 projects, EJB_test and WEB_test and the classes i have are

** EJB LAYER **

package source;

import java.rmi.RemoteException;

import javax.ejb.Remote;

@Remote
public interface HelloWorldService {
	
	public String getMessage() throws RemoteException;

}

AND

package source;

import java.rmi.RemoteException;

import javax.ejb.Stateless;

@Stateless
public class HelloWorldServiceBean implements HelloWorldServiceLocal {
	
	public String getMessage() throws RemoteException {
		return "don�t worry buddy it is just a test�";
	}

}

** WEB LAYER **

package application.test;

import javax.ejb.EJB;

import source.HelloWorldServiceBean;

import com.opensymphony.xwork2.ActionSupport;

public class ShowData extends ActionSupport {

	private String message;
	
	public String execute() throws Exception {
		
	    setMessage(bean.getMessage());
		return SUCCESS;
	}
	
    public void setMessage(String message){
        this.message = message;
    }

    public String getMessage() {
        return message;
    }
            
    @EJB private HelloWorldServiceBean bean;
    
    public void setBean(HelloWorldServiceBean bean)
    {
       this.bean = bean;
    }

}

AND my web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" 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">

    <display-name>Struts Blank</display-name>

    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
    </filter>

    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
    
</web-app>

i think the struts.xml and the index.jsp are ok (i tested it before adding the ejb)

For the EAR project, i tried

<?xml version="1.0" encoding="UTF-8"?>
<application id="Application_ID" version="1.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/application_1_4.xsd">
	<display-name>
	EAR_TEST</display-name>
	<module id="WebModule_1181435330640">
		<web>
			<web-uri>WEB_TEST.war</web-uri>
			<context-root>WEB_TEST</context-root>
		</web>
	</module>
	
	<module>
    	<ejb>EJB_TEST.jar</ejb>
   	</module>
   
</application>

But i get a The deployment descriptor of the module 'EJB_TEST.jar' cannot be loaded.

and if i try to deploy the web and the ejb alone i get a
java.lang.NoClassDefFoundError: Lsource/HelloWorldServiceBean;



Btw, is that

@EJB private HelloWorldServiceBean bean; in my web layer correct? (i added the ejb_test project as a required project to the web project)... it seems to be wrong but i couldnt figure out how to put all that together

thx in advance