相关链接
1 json-rpc-for-java
http://code.google.com/p/json-rpc-for-java/downloads/list
2 国人的json-rpc-for-java比老外的更好用
http://blog.csdn.net/jxpath/archive/2009/11/27/4888260.aspx
使用之后发现这个框架:JSON-RPC要注意的三个地方,其它还有什么就没有试出来了呀
1 JavaBean对象要用默认的无参构造函数,必须实现 java.io.Serializable序列化接口
2 JS方面: 必须注意:你的参数是String类型请在前后加',如:{username:'张三'}, 如是空值后台也会报错!
在传递对象请确保:参数类型的正确性,如你在age年龄中输入了非数字后台将报错!
3 通过在web.xml中注册的方式不能用!
更多精彩请参见官方示例：有更强大的级联调用
一 环境:XP+Myeclipse6.6+Tomcat7+JDK1.6
二 项目目录结构如下图
1 UserJSON.java
package jcore.jsonrpc.rpcobj;
//必须是jcore.jsonrpc.rpcobj包下才可以免注册
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import jcore.jsonrpc.common.JsonRpcObject;
import jcore.jsonrpc.entity.User;
public class UserJSON extends JsonRpcObject implements java.io.Serializable{
private static final long serialVersionUID = 1L;
/**
* 直接返回普通类型
* */
public String helloJSONPRC(String userName){
//可从getAllInputParms获取页面值
//String userName = (String)this.getAllInputParms().get("userName");
return "Hello World "+userName +" !";
}
/***
* 返回JavaBean类型
* */
public User getUser(){
return new User(1,"张三","123456",25);
}
public String saveUser(User user){
System.out.println("id: "+user.getUserId() + ",name:" + user.getUserName() + ",password: " + user.getUserPassword() + ",age: " + user.getAge());
return "保存用户成功!";
}
/**
* 返回List集合
* */
public List<User> getUserAll(){
List<User> users = new ArrayList<User>();
users.add(new User(1,"张三","123456",25));
users.add(new User(2,"李逵","123123",20));
return users;
}
/**
* 返回Map集合
* */
public Map<String,User> getUserMapAll(){
Map<String,User> maps = new HashMap<String,User>();
maps.put("1",new User(1,"张三","123456",25));
maps.put("2",new User(2,"李逵","123123",20));
return maps;
}
}
2 User.java
package jcore.jsonrpc.entity;
public class User implements java.io.Serializable{
private static final long serialVersionUID = 1L;
private int userId;
private String userName ;
private String userPassword;
private int age ;
public int getUserId() {
return userId;
}
public void setUserId(int userId) {
this.userId = userId;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getUserPassword() {
return userPassword;
}
public void setUserPassword(String userPassword) {
this.userPassword = userPassword;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public User(int userId, String userName, String userPassword, int age) {
super();
this.userId = userId;
this.userName = userName;
this.userPassword = userPassword;
this.age = age;
}
/**
* 必须注意:JSON-RPC必须要求你的JavaBean对象要用默认的无参构造函数
* */
public User(){
}
}
3 web.xml
<servlet> <servlet-name>JSONRPCServlet</servlet-name> <servlet-class> jcore.jsonrpc.servlet.JSONRPCServlet </servlet-class> <load-on-startup>2</load-on-startup> </servlet> <servlet-mapping> <servlet-name>JSONRPCServlet</servlet-name> <url-pattern>/JRPC</url-pattern> </servlet-mapping>
3 index.jsp
<%@ page language="java" pageEncoding="UTF-8" contentType="text/html; charset=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>JSON-RPC</title>
<script type="text/javascript">
var contextPath = "<%=path%>";// 关键的地方
</script>
<script type="text/javascript" charset="UTF-8" src="js/JsonRpcClient.js"></script>
<script type="text/javascript">
var myrpc = rpc.UserJSON;
/**
传递变通字符串
*/
function helloName(){
var userName = document.getElementById("userName").value;
alert(myrpc.helloJSONPRC(userName));
}
/**
传递javaBean对象
*/
function saveUser(){
/**
必须注意:你的参数是String类型请在前后加',如:{username:'张三'}
如是空值后台也会报错!!
在传递对象请确保:参数类型的正确性,如你在age年龄中输入了非数字后台将报错!
*/
var user = "{";
user += "userId:"+ document.getElementById("userId").value;
user += ",userName:'"+document.getElementById("userName").value+"'";
user += ",userPassword:'"+document.getElementById("userPassword").value+"'";
user += ",age:"+document.getElementById("age").value;
user += "}";
var message = myrpc.saveUser(user);
alert(message);
}
/**
获取对象
*/
function getUser(){
var user = myrpc.getUser();
document.getElementById("userId").value = user.userId;
document.getElementById("userName").value = user.userName;
document.getElementById("userPassword").value = user.userPassword;
document.getElementById("age").value = user.age;
}
/**
获取集合对象
*/
function listUser(){
var users = myrpc.getUserAll();
var size = users.length;
var userInfo = "<table border='1'>";
userInfo += "<tr>";
userInfo += "<td>ID</td>";
userInfo += "<td>姓名</td>";
userInfo += "<td>密码</td>";
userInfo += "<td>年龄</td>";
userInfo += "</tr>";
var user = '';
for(var i =0;i<size;i++){
user = users[i];
userInfo += "<tr>";
userInfo += "<td>"+user.userId+"</td>";
userInfo += "<td>"+user.userName+"</td>";
userInfo += "<td>"+user.userPassword+"</td>";
userInfo += "<td>"+user.age+"</td>";
userInfo += "</tr>";
}
userInfo += "</table>";
document.getElementById("userInfo").innerHTML = userInfo;
}
/**
获取Map对象
*/
function mapUser(){
var users = myrpc.getUserMapAll();
var size = users.length;
var userInfo = "<table border='1'>";
userInfo += "<tr>";
userInfo += "<td>ID</td>";
userInfo += "<td>姓名</td>";
userInfo += "<td>密码</td>";
userInfo += "<td>年龄</td>";
userInfo += "</tr>";
var user = '';
for(var u in users){
user = users[u];
if(user.userId == undefined){
break;
}
userInfo += "<tr>";
userInfo += "<td>"+user.userId+"</td>";
userInfo += "<td>"+user.userName+"</td>";
userInfo += "<td>"+user.userPassword+"</td>";
userInfo += "<td>"+user.age+"</td>";
userInfo += "</tr>";
}
userInfo += "</table>";
document.getElementById("userInfo").innerHTML = userInfo;
}
function testRegObject(){
alert(rpc.getRpcObj("com.liuzd.json.web.action.TestJson").testHello("欢迎天涯!!"));
}
</script>
</head>
<body>
ID: <input type="text" name="userId" id="userId">
<br>
姓名: <input type="text" name="userName" id="userName">
<br>
密码: <input type="text" name="userPassword" id="userPassword">
<br>
年龄：<input type="text" name="age" id="age">
<br>
<input type="button" value="测试" onclick="helloName();">
<br>
<input type="button" value="获取User" onclick="getUser();">
<br>
<input type="button" value="保存User" onclick="saveUser();">
<br>
<input type="button" value="List显示" onclick="listUser();">
<br>
<input type="button" value="map显示" onclick="mapUser();">
<br>
<input type="button" value="测试未注册的对象" onclick="testRegObject();">
<br>
<div id="userInfo">
</div>
</body>
</html>
4 TestJSON.java未注册的使用
A TestJSON.java code
package com.liuzd.json.web.action;
// 不是jcore.jsonrpc.rpcobj包下要进行注册
public class TestJson implements java.io.Serializable{
private static final long serialVersionUID = 1L;
public String testHello(String hello){
return hello;
}
}
B JS调用方式
function testRegObject(){
alert(rpc.getRpcObj("com.liuzd.json.web.action.TestJson").testHello("欢迎天涯!!"));
}
个人觉得这种方式不错吧！
工程附件说明:
JsonRpcForJava3.2_sample.rar官方示例
TestJsonRPC-project.zip 我的DEMO示例
JSON-RPC-lib.zip 所要的jar重新打包:JSON-RPC.jar文件