[jboss-user] [Beginners Corner] - My first session application

[Nagendra42]

Hi Friends,

I am first time using application server, So can any one help me how can i run first session bean in jboss without eclips.

i have this files;

package test.session;
import java.lang.*;
import java.rmi.RemoteException;
import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;

public interface MyTestSession extends javax.ejb.EJBObject{

         public java.lang.String SayHello() throws java.rmi.RemoteException;

}

===============================================================


package test.session;
import java.lang.*;
import java.rmi.RemoteException;
import javax.ejb.CreateException;
import javax.ejb.EJBException;
import javax.ejb.SessionBean;
import javax.ejb.SessionContext;

public interface MyTestSessionHome extends javax.ejb.EJBHome{

public static final String COMP_NAME="java:comp/env/ejb/test/MyTestSession";

public static final String JNDI_NAME="ejb/test/MyTestSessionBean";

public test.session.MyTestSession create() throws javax.ejb.CreateException, java.rmi.RemoteException;

}

===========================================

public class MyTestSessionBean implements SessionBean{

public void ejbCreate() throws CreateException {

}

public String SayHello(){
      String msg="Hello! I am Session Bean";
      System.out.println(msg);
      return msg;
}

 

public void setSessionContext( SessionContext aContext ) throws EJBException {

}

 

public void ejbActivate() throws EJBException {

}

public void ejbPassivate() throws EJBException {

}

public void ejbRemove() throws EJBException {

}

}


   =====================================

ejb-jar.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE ejb-jar PUBLIC "-//Sun Microsystems, Inc.//DTD Enterprise JavaBeans 2.0//EN" "http://java.sun.com/dtd/ejb-jar_2_0.dtd">

<ejb-jar>

 Example 3
 <display-name>Example 3</display-name>

<enterprise-beans>

<!-- Session Beans -->

      <display-name>My Test Session Bean</display-name>
     <ejb-name>test/MyTestSession</ejb-name>
     test.session.MyTestSessionHome
     test.session.MyTestSession
     <ejb-class>test.session.MyTestSessionBean</ejb-class>
     <session-type>Stateless</session-type>
     <transaction-type>Container</transaction-type>


</enterprise-beans>

<assembly-descriptor>

</assembly-descriptor>

</ejb-jar>

==============================================

 /*
* SessionTestServlet.java
*
*/

package test.session;

import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import javax.naming.*;
import javax.rmi.PortableRemoteObject;


/**
* @author Deepak Kumar
* @Web http://www.roseindia.net
* @Email deepak at roseindia.net
*/

public class SessionTestServlet extends HttpServlet {
MyTestSessionHome testSessionBean;

public void init(ServletConfig config) throws ServletException{
//Look up home interface
try {
       InitialContext ctx = new InitialContext();
       Object objref = ctx.lookup("ejb/test/MyTestSessionBean");
        testSessionBean = (MyTestSessionHome)PortableRemoteObject.narrow(objref,    MyTestSessionHome.class);
} catch (Exception NamingException) {
       NamingException.printStackTrace();
}


}

public void doGet (HttpServletRequest request, 
HttpServletResponse response) 
throws ServletException, IOException
{

PrintWriter out;
response.setContentType("text/html");
String title = "EJB Example";
out = response.getWriter();

out.println("");
out.println("");
out.println("Hello World Servlet!");
out.println("");
out.println("");
out.println("<p align=\"center\"><font size=\"4\" color=\"#000080\">Servlet Calling Session Bean");


try{
MyTestSession beanRemote;
beanRemote = testSessionBean.create();
out.println("<p align=\"center\"> Message from Session Bean is: " + beanRemote.SayHello() + ""); 
beanRemote.remove();
}catch(Exception CreateException){
CreateException.printStackTrace();
}
out.println("<p align=\"center\"><a href=\"javascript:history.back()\">Go to Home");
out.println("");
out.println("");


out.close();
}

public void destroy() {
System.out.println("Destroy");
}
}

=======================================
web.xml

<?xml version="1.0" encoding="UTF-8"?>
<!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-name>SessionServlet</servlet-name>
<display-name>Simple Session Servlet</display-name>
<servlet-class>test.session.SessionTestServlet</servlet-class>

<load-on-startup>1</load-on-startup>



<servlet-mapping>
<servlet-name>SessionServlet</servlet-name>
<url-pattern>/servlet/test</url-pattern>
</servlet-mapping>

<session-config>
<session-timeout>0</session-timeout>
</session-config>

</web-app>




please tell me step by step



Thanks in adv

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