Dwr — 如何接收自定义类型的返回值

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Dwr — 如何接收自定义类型的返回值

1. 自定义类型`User`

package org.ljm.dwr.service;public class User {    private int id;    private String username;    private Group group;    public User() {    }    public User(int id, String username, Group group) {        this.id = id;        this.username = username;        this.group = group;    }    public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getUsername() {        return username;    }    public void setUsername(String username) {        this.username = username;    }    public Group getGroup() {        return group;    }    public void setGroup(Group group) {        this.group = group;    }}

2. 自定义类型`Group`

package org.ljm.dwr.service;public class Group {    private int id;    private String name;    public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getName() {        return name;    }    public void setName(String name) {        this.name = name;    }    public Group() {    }    public Group(int id, String name) {        this.id = id;        this.name = name;    }}

3. 要被客户端调用的类`UserService`

package org.ljm.dwr.service;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;public class UserService {    public static Map<String,User> users = new HashMap<String,User>();    static {        users.put("1", new User(1,"孙悟空",new Group(1,"取经组")));        users.put("2", new User(2,"猪八戒",new Group(1,"取经组")));        users.put("3", new User(3,"白骨精",new Group(2,"吃肉组")));        users.put("4", new User(4,"红孩儿",new Group(2,"吃肉组")));    }    public List<User> list() {        List<User> us = new ArrayList<User>();        for(String key : users.keySet()) {            us.add(users.get(key));        }        return us;    }    public void add(User user) {        users.put(String.valueOf(user.getId()), user);    }    public User user(String id) {        return users.get(id);    }}

4. dwr.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE dwr PUBLIC "-//GetAhead Limited//DTD Direct Web Remoting 3.0//EN" "http://getahead.org/dwr/dwr30.dtd"><dwr>  <allow>    <!-- 将java对象公布为javascript对象 -->    <create creator="new">      <param name="class" value="org.ljm.dwr.service.DwrHello"/>    </create>    <create creator="new">      <param name="class" value="org.ljm.dwr.service.UserService"/>    </create>    <convert converter="bean" match="org.ljm.dwr.service.User"/>    <convert converter="bean" match="org.ljm.dwr.service.Group"/>  </allow></dwr>

5. jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>通过dwr完成UCRD</title><script type="text/javascript" src="<%=request.getContextPath() %>/js/jquery-1.7.2.min.js"></script><!-- 必须引入dwr的引擎，此js文件由dwr框架提供 --><script type="text/javascript" src="<%=request.getContextPath() %>/dwr/engine.js"></script><!-- 引入java对象转成的js ，DwrHello就是类的名字--><script type="text/javascript" src="<%=request.getContextPath() %>/dwr/interface/UserService.js"></script><script type="text/javascript">  $(function(){      listUsers();      function listUsers() {          UserService.list(function(users){             var tbody = $("#tb tbody").empty();             $.each(users,function(i,user){                 tbody.append("<tr><td>"+user.id+"</td><td>"+user.username+"</td><td>"+user.group.name+"</td></tr>");             });          });      }      $("#btn").on("click",function(){         var userId = $("#userId").val();         var username = $("#username").val();         var gId = $("#gId").val();         var gName = $("#gName").val();         var user = {"id":userId,"username":username,"group":{"id":gId,"name":gName}};         console.log(user);         UserService.add(user);         listUsers();      });  });</script></head><body><table id="tb" style="width:700px;" align="center" border="1">  <thead>    <tr>      <th>用户标识</th>      <th>用户名</th>      <th>用户所在组</th>    </tr>  </thead>  <tbody></tbody></table><div id="addUser" style="text-align:center;margin-top:40px;">用户Id:<input id="userId" type="text"/>用户名:<input id="username" type="text"/>组Id:<input id="gId" type="text"/>组名:<input id="gName" type="text"/><input id="btn" type="button" value="添加"/></div></body></html>

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Dwr — 如何接收自定义类型的返回值

Dwr — 如何接收自定义类型的返回值

1. 自定义类型User

2. 自定义类型Group

3. 要被客户端调用的类UserService

4. dwr.xml

5. jsp

1. 自定义类型`User`

2. 自定义类型`Group`

3. 要被客户端调用的类`UserService`