Need help with simple EAR application (EJB 3 + STRUTS 2 + Glassfish)
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
publicinterface HelloWorldService{
public String getMessage()throws RemoteException;
}
AND
package source;
import java.rmi.RemoteException;
import javax.ejb.Stateless;
@Stateless
publicclass HelloWorldServiceBeanimplements HelloWorldServiceLocal{
public String getMessage()throws RemoteException{
return"don抰 worry buddy it is just a test?;
}
}
** WEB LAYER **
package application.test;
import javax.ejb.EJB;
import source.HelloWorldServiceBean;
import com.opensymphony.xwork2.ActionSupport;
publicclass ShowDataextends ActionSupport{
private String message;
public String execute()throws Exception{
setMessage(bean.getMessage());
return SUCCESS;
}
publicvoid setMessage(String message){
this.message = message;
}
public String getMessage(){
return message;
}
@EJBprivate HelloWorldServiceBean bean;
publicvoid 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
