1. 摘要
程序流程：
- 前台使用ajax技术，传递json字符串到后台；
- 后台使用Spring MVC注解@RequestBody 接受前台传递的json字符串，并返回新的json字符串到前台；
- 前台接受后台传递过来的json数据，并显示。
2. 前台界面和js
<%@ page language="java" pageEncoding="UTF-8"%><%String path = request.getContextPath();String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/";response.setHeader("Pragma", "no-cache");response.setHeader("Cache-Control", "no-cache");response.setDateHeader("Expires", 0);%><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html><head><title>SpringMVC+ajax+json</title><script type="text/javascript">var basePath = "<%=basePath%>";</script><%-- <link rel="stylesheet" type="text/css" href="<%=basePath%>js/easyui/demo.css"> --%><script type="text/javascript" src="<%=basePath%>js/JQuery/jquery.min.js"></script><script type="text/javascript" src="<%=basePath%>js/test/ajaxAndJson.js"></script></head><body><div style="padding:5px 0;"><p>SpringMVC @RequestBody 接收Json数组对象</p><a href="#" class="easyui-linkbutton" onclick="loadData()" data-options="iconCls:'icon-add'">@RequestBody 接收Json数组对象</a></div></body></html>
3. 后台java代码
http://localhost:8080/SpringMVCTest/test/index.action 请求后，返回index.jsp界面，如下图：
点击后会请求jsonDataReq
这是person.java类
4. 配置
web.xml
<?xml version="1.0" encoding="UTF-8"?><web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"><!-- 从类路径下加载Spring配置文件，classpath关键字特指从类路径下加载 --><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value></context-param><!-- 负责启动Spring容器的监听器 --><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 配置Spring MVC，其对应的配置文件为：servlet-name-servlet.xml, 本项目的为：spring-servlet.xml --><servlet><servlet-name>spring</servlet-name><servlet-class> org.springframework.web.servlet.DispatcherServlet</servlet-class><load-on-startup>3</load-on-startup></servlet><servlet-mapping><servlet-name>spring</servlet-name><url-pattern>*.action</url-pattern></servlet-mapping></web-app>
spring-servlet.xml
applicationContext.xml
5. 结果
