EJB Local接口应用

2012-12-24

EJB Local接口使用环境MyEclipse 8.6JBoss 6.0JDK 1.6.13EJB 3.0 问题使用EJB Local接口解决 1.新建Enter

EJB Local接口使用
环境

MyEclipse 8.6 + JBoss 6.0 + JDK 1.6.13 + EJB 3.0

问题

使用EJB Local接口

解决

1. 新建Enterprise Application Project，注意New Web module Project勾选上

EJB Local接口应用

2. src--------->新建包

3. 新建接口HelloWorld

package com.wgb.bean;/**  * @className: HelloWorld.java * @classDescription:  * @function:  * @author: Wentasy * @createTime: 2012-11-26 下午09:08:14 * @modifyTime:  * @modifyReason:  * @since: JDK 1.6 */public interface HelloWorld { public String sayHello(String name);}

4. 新建类 HelloWorldBean

package com.wgb.bean;import javax.ejb.Local;//import javax.ejb.Remote;import javax.ejb.Stateless;/**  * @className: HelloWorldBean.java * @classDescription:  * @function:  * @author: Wentasy * @createTime: 2012-11-26 下午09:09:02 * @modifyTime:  * @modifyReason:  * @since: JDK 1.6 */@Stateless     //@Remote ({HelloWorld.class})@Local ({HelloWorld.class})public class HelloWorldBean {public String sayHello(String name) {             return  "Hello World!" + name;         }    }

5. 在WebRoot下修改index.jsp文件

<%@ page language="java" import="java.util.*,javax.naming.*,com.wgb.bean.HelloWorld" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html>  <head>    <base href="<%=basePath%>">        <title>My JSP 'index.jsp' starting page</title><meta http-equiv="pragma" content="no-cache"><meta http-equiv="cache-control" content="no-cache"><meta http-equiv="expires" content="0">    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"><meta http-equiv="description" content="This is my page"><!--<link rel="stylesheet" type="text/css" href="styles.css">-->  </head>    <body>        <%       try {       //Remote    //Properties props = new Properties();         //props.setProperty("java.naming.factory.initial", "org.jnp.interfaces.NamingContextFactory");          //props.setProperty("java.naming.provider.url", "localhost:1099");          //props.setProperty("java.naming.factory.url.pkgs", "org.jboss.naming");                  //InitialContext ctx = new InitialContext(props);              //HelloWorld helloworld = (HelloWorld) ctx.lookup("HelloWorldBean/remote");            //out.print(helloworld.sayHello("WGB"));                          //Local            InitialContext ctx = new InitialContext();              HelloWorld helloworld = (HelloWorld) ctx.lookup("HelloWorldBean/local");            out.print(helloworld.sayHello("Wentasy"));            } catch (NamingException e) {                  e.printStackTrace();              }                 %>    </body></html>

6. 在浏览器输入http://localhost:8080/HelloEJBWeb访问。

参考资料

深入学习EJB3.0之一：概述与搭建环境

http://blog.csdn.net/drykilllogic/article/details/6185745

ejb jboss myeclipse环境搭建工程实例

http://blog.csdn.net/weirenren_027/article/details/8024060

websphere ejb 远程/本地调用总结

http://lcllcl987.iteye.com/blog/53957

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EJB Local接口应用