对外提供Json的webservice

1.在工作区的空白处，右键--->new--->web service project,如下：

2.点击finish!

3.在src目录下新建项目包：com.first.service，并在包下创建一个名叫：FirstService的java类（类名任意取）！

package com.first.service;

import javax.jws.WebService;
import javax.xml.ws.Endpoint;
import net.sf.json.JSONArray;
import net.sf.json.JSONObject;

@WebService
public class FirstService {

    public String getAllUsers(){
        JSONObject json=new JSONObject();
        JSONArray jsonMembers = new JSONArray();  

        JSONObject member1 = new JSONObject();
        member1.put("loginname", "zhangfan");
        member1.put("password", "userpass");
        member1.put("email","[email protected]");
        member1.put("sign_date", "2007-06-12");
        jsonMembers.add(member1);  

        JSONObject member2 = new JSONObject();
        member2.put("loginname", "zf");
        member2.put("password", "userpass");
        member2.put("email","[email protected]");
        member2.put("sign_date", "2008-07-16");
        jsonMembers.add(member2);  

        json.put("users", jsonMembers);  

        return json.toString();
    }

    public static void main(String[] args) {
        Endpoint.publish("http://localhost:9001/Service/FirstService", new FirstService());
        System.out.println("start the FirstService ..........");
    }
}

4.运行这个java类，当控制台打印出，如下，表明webService已启动：

5.在浏览器中访问地址：http://localhost:9001/Service/FirstService?wsdl

6，一个webService完成了！