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Spring MVC--使用Jackson返回JSON格式数据
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Spring MVC--使用Jackson返回JSON格式数据
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使用Jackson返回JSON格式數據
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>測試返回JSON格式的數據</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>編號</th><th>書名</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會將集合數據轉換json格式返回客戶端@ResponseBodypublic Object getJson() {List<Book> list = new ArrayList<Book>();list.add(new Book(1,"水滸傳","施耐庵"));list.add(new Book(2,"三國演義","羅貫中"));list.add(new Book(3,"西游記","吳承恩"));list.add(new Book(4,"紅樓夢","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="http://www.springframework.org/schema/beans"xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:mvc="http://www.springframework.org/schema/mvc"xmlns:context="http://www.springframework.org/schema/context"xsi:schemaLocation="http://www.springframework.org/schema/beanshttp://www.springframework.org/schema/beans/spring-beans-4.2.xsdhttp://www.springframework.org/schema/mvchttp://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd http://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-4.2.xsd"><!-- spring可以自動去掃描base-pack下面的包或者子包下面的java文件，如果掃描到有Spring的相關注解的類，則把這些類注冊為Spring的bean --><context:component-scan base-package="org.zhangxueliang.controller"/><!-- 設置配置方案 --><mvc:annotation-driven/><!-- 使用默認的Servlet來響應靜態文件 --><mvc:default-servlet-handler/><!-- 視圖解析器 --><bean id="viewResolver"class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 前綴 --><property name="prefix"><value>/WEB-INF/content/</value></property><!-- 后綴 --><property name="suffix"><value>.jsp</value></property></bean></beans>web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1"><!-- 定義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><!-- 讓Spring MVC的前端控制器攔截所有請求 --><servlet-mapping><servlet-name>springmvc</servlet-name><url-pattern>/</url-pattern></servlet-mapping><!-- 編碼過濾器 --><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>總結
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