EJB3 Stateless Maven example with Jboss Application server

Step 1 :

Download jboss 5.1 application server from below (Which supporting for JDK 1.6)
http://jbossas.jboss.org/downloads

Extract and start the Jboss server.

Step 2 :

Create sample maven project as below


<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>ejb</groupId>
    <artifactId>ejb-stateless</artifactId>
    <version>1.0-SNAPSHOT</version>

    <dependencies>
        <dependency>
            <groupId>javax.ejb</groupId>
            <artifactId>ejb-api</artifactId>
            <version>3.0</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.jboss.jbossas</groupId>
            <artifactId>jboss-as-client</artifactId>
            <version>5.1.0.GA</version>
            <type>pom</type>
        </dependency>
    </dependencies>
</project>

Step 3:

Create Stateless bean as remote.

package ejb.statless;

import javax.ejb.*;
import java.util.*;

@Remote
public interface LibrarySessionBeanRemote {

    void addBook(String bookName);

    List<String> getBooks();
}



package ejb.statless;

import javax.ejb.*;
import java.util.*;

@Stateless
public class LibrarySessionBean implements LibrarySessionBeanRemote {

    List<String> bookShell = new ArrayList<String>();

    public LibrarySessionBean() {
    }

    @Override
    public void addBook(String bookName) {
        System.out.println(bookShell + "book shell....................");
        System.out.println(bookName + "book name....................");
        bookShell.add(bookName);
    }

    @Override
    public List<String> getBooks() {
        return bookShell;
    }
}

Step 4: Build the project and upload jar to Jboss server EJB3 container.
Step 5: Create sample client

package ejb.statless;

import javax.naming.*;
import java.io.*;
import java.util.*;

public class EJBTestClient {

    BufferedReader brConsoleReader = null;
    Properties props;
    InitialContext ctx;
    {
/*        props = new Properties();
        try {
            props.load(new FileInputStream("jndi.properties"));

        } catch (IOException ex) {
            ex.printStackTrace();
        }*/
        Hashtable hashtable = new Hashtable();
        hashtable.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
        hashtable.put(Context.PROVIDER_URL, "jnp://localhost:1099");
        hashtable.put(Context.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");
        try {
            ctx = new InitialContext(hashtable);
        } catch (NamingException ex) {
            ex.printStackTrace();
        }
        brConsoleReader = new BufferedReader(new InputStreamReader(System.in));
    }

    public static void main(String[] args) {

        EJBTestClient ejbTester = new EJBTestClient();

        ejbTester.testStatelessEjb();
    }

    private void showGUI(){
        System.out.println("**********************");
        System.out.println("Welcome to Book Store");
        System.out.println("**********************");
        System.out.print("Options \n1. Add Book\n2. Exit \nEnter Choice: ");
    }

    private void testStatelessEjb(){

        try {
            int choice = 1;

            LibrarySessionBeanRemote libraryBean = (LibrarySessionBeanRemote) ctx.lookup ("LibrarySessionBean/remote");

            while (true) {
                String bookName;
                showGUI();
                String strChoice = brConsoleReader.readLine();

                choice = Integer.parseInt(strChoice);
                if (choice == 1) {
                    System.out.print("Enter book name: ");
                    bookName = brConsoleReader.readLine();
                    assert libraryBean != null;
                    libraryBean.addBook(bookName);
                } else if (choice == 2) {
                    break;
                }
            }

            List<String> booksList = libraryBean.getBooks();

            System.out.println("Book(s) entered so far: " + booksList.size());
            int i = 0;
            for (String book:booksList) {
                System.out.println((i+1)+". " + book);
                i++;
            }
            LibrarySessionBeanRemote libraryBean1 =
                    (LibrarySessionBeanRemote)ctx.lookup("LibrarySessionBean/remote");
            List<String> booksList1 = libraryBean1.getBooks();
            System.out.println(
                    "Book(s) entered so far: " + booksList1.size());
            for (i = 0; i < booksList1.size(); ++i) {
                System.out.println((i+1)+". " + booksList1.get(i));
            }
        } catch (Exception e) {
            System.out.println(e.getMessage());
            e.printStackTrace();
        }finally {
            try {
                if(brConsoleReader !=null){
                    brConsoleReader.close();
                }
            } catch (IOException ex) {
                System.out.println(ex.getMessage());
            }
        }
    }
}

Run main method and check the result :)

Sample code : git clone https://github.com/malithmeee/jboss-ejb3.git