Spring MVC的@ResponseBody返回JSON格式的数据

矫情吗；* 2021-07-24 23:59 488阅读 0赞

**一 控制器**

package org.fkit.controller;
    
    import java.util.ArrayList;
    import java.util.List;
    import org.fkit.domain.Book;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.ResponseBody;
    
    @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
        @ResponseBody
        public Object getJson() {
            List<Book> list = new ArrayList<Book>();
            list.add(new Book(1,"Spring+MyBatis企业应用实战","肖文吉"));
            list.add(new Book(2,"轻量级JavaEE企业应用实战","李刚"));
            return list;
        }
    
    }

**二 视图**

<%@ 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>

**三 领域模型**

package org.fkit.domain;
    import java.io.Serializable;
    
    public class Book implements Serializable {
         private static final long serialVersionUID = 1L;
         
         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;
         }
         @Override
         public String toString() {
               return "Book [id=" + id + ", name=" + name + ",  author=" + author + "]";
         }
    }

**四 配置文件**

<?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:p="http://www.springframework.org/schema/p"
        xmlns:mvc="http://www.springframework.org/schema/mvc"
         xmlns:context="http://www.springframework.org/schema/context"
        xsi:schemaLocation="
            http://www.springframework.org/schema/beans
             http://www.springframework.org/schema/beans/spring-beans.xsd
            http://www.springframework.org/schema/mvc
            http://www.springframework.org/schema/mvc/spring-mvc.xsd     
            http://www.springframework.org/schema/context
             http://www.springframework.org/schema/context/spring-context.xsd">
            
        
        <context:component-scan base-package="org.fkit.controller"/>
         
        <mvc:annotation-driven/>
         
        <mvc:default-servlet-handler/>
         
        
        
         <bean id="viewResolver"
               class="org.springframework.web.servlet.view.InternalResourceViewResolver"
              p:prefix="/WEB-INF/content/" p:suffix=".jsp"/>
        
    </beans>

**五 测试**

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2NoZW5ncWl1bWluZw_size_16_color_FFFFFF_t_70]: /images/20210724/4f5ed67c637e4cdf82b2c1b75b933dfb.png