第一个jboss例子

先新建一个接口，HelloWorld.java:

 

package com.itcast.ejb3;

public interface HelloWorld {
 public String say(String name);

}

 

再新建一个实现类，HelloWorldBean.java

package com.itcast.ejb3.impl;

import javax.ejb.Remote;
import javax.ejb.Stateless;

import com.itcast.ejb3.HelloWorld;

@Stateless
@Remote(HelloWorld.class)
public class HelloWorldBean implements HelloWorld {

 public String say(String name) {
  return name + "说，hello world";
 }

}

 

然后将这两个文件打成jar包，HelloWorld.jar,并将这个jar包放入到F:/jboss-4.2.3.GA/server/default/deploy中去部署

 

然后在新建一个测试类,EJBClient .java

 

package com.itcast.ejb.client;

import java.util.Properties;

import javax.naming.InitialContext;

import com.itcast.ejb3.HelloWorld;

public class EJBClient {

 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  Properties props = new Properties();
  props.setProperty("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory");
  props.setProperty("java.naming.provider.url", "localhost:1099");
  try {
   InitialContext context = new InitialContext(props);
   HelloWorld hello = (HelloWorld)context.lookup("HelloWorldBean/remote");
   System.out.println(hello.say("高歌对EJB"));
  } catch (Exception e) {
   System.out.println(e.getMessage());
  }
  

 }

}

 

 

 

上面的EJBClient也可以这样优化一下：

在src目录下新建一个jndi.properties文件,内容是：

java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.provider.url=localhost:1099

 

EJBClient.java改为:

package com.itcast.ejb.client;

import java.util.Properties;

import javax.naming.InitialContext;

import com.itcast.ejb3.HelloWorld;

public class EJBClient {

 /**
  * @param args
  */
 public static void main(String[] args) {
  
  try {
   InitialContext context = new InitialContext();
   HelloWorld hello = (HelloWorld)context.lookup("HelloWorldBean/remote");
   System.out.println(hello.say("高歌对EJB"));
  } catch (Exception e) {
   System.out.println(e.getMessage());
  }
  

 }

}