Calling / Accessing an EJB Stateless Bean Remotely

In this tutorial we are going to see , how to call an EJB bean  remotely which is deployed in a EJB Server.We have already seen how to create a simple stateless session bean using NetBeans and how to deploy the same in the GlassFish Server , if you dont know how to do this , i will recommend please see this link   "http://ayazroomy-java.blogspot.in/2013/07/creating-simple-ejb-sessionbean-using.html ".   

We are going to access the same bean which we deployed in the previous part   "http://ayazroomy-java.blogspot.in/2013/07/creating-simple-ejb-sessionbean-using.html " , namely "HomeImpl"(Seesion Bean) with the JNDI Name "abc".

To access an EJB Bean remotely we need to follow these steps :

Note : We are note following any J2EE Pattern here for accessing EJB , there are lot of patterns available for making an EJB call which helps us to reduce the traffic,memory and other stuffs.

Step 1:

Add all the Require Jar files in the libraries.Right click on the Libraries and select add Jar and go to the GlassFish folder and select all the jars inside the "Modules" folder.

Ex :

E:\Install-files\Net\glassfish\modules

Add the Jar file "MyApp" our EJB Project jar which we have created previously, if not create it using the "clean and build" option by right clicking on the Project Node and select "Clean and Build".The jar file will be created and available inside the dist folder of the Project .

Step 2 :

Once all the Jars is added, we can write our client code to access the Bean.

Code:

 
import java.util.Properties;
import javax.naming.InitialContext;
import test.Home;
import test.MyBeanRemote;

public class Main

{

public static void main(String[] args)throws Exception { 

/*
Require EJB2.0 Version
System.setProperty("java.naming.factory.initial", "com.sun.enterprise.naming.SerialInitContextFactory");
System.setProperty("java.naming.factory.url.pkgs", "com.sun.enterprise.naming");
System.setProperty("java.naming.factory.state", "com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl");
System.setProperty("org.omg.CORBA.ORBInitialHost", "localhost");
System.setProperty("org.omg.CORBA.ORBInitialPort", "3700"); */

InitialContext ic = new InitialContext( );
Object l=ic.lookup("abc");
Home d=(Home)l;

 System.out.println(d.sayHello("Jack Sparrow..."));

}

}

Output :

Welcome to EJB Jack Sparrow...

Note : All the GlassFish jars should be added in libraries and the Bean should be deployed in the GlassFish Server otherwise an exception will occur.

This will work fine under both the GlassFish Server and client in the same System , when we tried to access the EJB Client from other System we have to specify the IPAddress & Port of the machine in which server is running  in the System.Property values.

 Thanks for Reading...

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