使用Jackson返回JSON格式数据
index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%><!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>测试返回JSON格式的数据</title><script type="text/javascript" src="js/jquery-1.11.0.min.js"></script><script type="text/javascript" src="js/json2.js"></script><script type="text/javascript">$(document).ready(function(){testResponseBody();});function testResponseBody(){$.post("${pageContext.request.contextPath}/json/testRequestBody",null,function(data){ $.each(data,function(){var tr = $("<tr align='center'/>");$("<td/>").html(this.id).appendTo(tr);$("<td/>").html(this.name).appendTo(tr);$("<td/>").html(this.author).appendTo(tr);$("#booktable").append(tr);})},"json");}</script></head><body><table id="booktable" border="1" style="border-collapse: collapse;"><tr align="center"><th>编号</th><th>书名</th><th>作者</th></tr></table></body></html>
BookController.java
package org.zhangxueliang.controller;import java.util.ArrayList;import java.util.List;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;import org.zhangxueliang.domain.Book;@Controller@RequestMapping("/json")public class BookController {@RequestMapping(value="/testRequestBody")// @ResponseBody会将集合数据转换json格式返回客户端@ResponseBodypublic Object getJson() {List<Book> list = new ArrayList<Book>();list.add(new Book(1,"水浒传","施耐庵"));list.add(new Book(2,"三国演义","罗贯中"));list.add(new Book(3,"西游记","吴承恩"));list.add(new Book(4,"红楼梦","曹雪芹"));return list;}}
Book.java
package org.zhangxueliang.domain;import java.io.Serializable;public class Book implements Serializable {private Integer id;private String name;private String author;public Book() {super();// TODO Auto-generated constructor stub}public Book(Integer id, String name, String author) {super();this.id = id;this.name = name;this.author = author;}public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getAuthor() {return author;}public void setAuthor(String author) {this.author = author;}@Overridepublic String toString() {return "Book [id=" + id + ", name=" + name + ", author=" + author + "]";}}
springmvc-config.xml
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="/schema/beans"xmlns:xsi="/2001/XMLSchema-instance"xmlns:mvc="/schema/mvc"xmlns:context="/schema/context"xsi:schemaLocation="/schema/beans/schema/beans/spring-beans-4.2.xsd/schema/mvc/schema/mvc/spring-mvc-4.2.xsd/schema/context/schema/context/spring-context-4.2.xsd"><!-- spring可以自动去扫描base-pack下面的包或者子包下面的java文件，如果扫描到有Spring的相关注解的类，则把这些类注册为Spring的bean --><context:component-scan base-package="org.zhangxueliang.controller"/><!-- 设置配置方案 --><mvc:annotation-driven/><!-- 使用默认的Servlet来响应静态文件 --><mvc:default-servlet-handler/><!-- 视图解析器 --><bean id="viewResolver"class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 前缀 --><property name="prefix"><value>/WEB-INF/content/</value></property><!-- 后缀 --><property name="suffix"><value>.jsp</value></property></bean></beans>
web.xml
<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="/2001/XMLSchema-instance" xmlns="/xml/ns/javaee" xsi:schemaLocation="/xml/ns/javaee /xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"><!-- 定义Spring MVC的前端控制器 --><servlet><servlet-name>springmvc</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>/WEB-INF/springmvc-config.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><!-- 让Spring MVC的前端控制器拦截所有请求 --><servlet-mapping><servlet-name>springmvc</servlet-name><url-pattern>/</url-pattern></servlet-mapping><!-- 编码过滤器 --><filter><filter-name>characterEncodingFilter</filter-name><filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class><init-param><param-name>encoding</param-name><param-value>UTF-8</param-value></init-param></filter><filter-mapping><filter-name>characterEncodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping></web-app>
