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自定義HTTPMessageConverter接收JSON格式的資料

jsp頁面

<%@ page language="java" import="java.util.*" pageEncoding="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>My JSP 'json2.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <script type="text/javascript" src="js/jquery.min.js"></script> <script type="text/javascript" src="js/json2.js"></script> <script
type="text/javascript">
$(document).ready(function(){ testjson2(); }); function testjson2(){ $.ajax({ url:"${pageContext.request.contextPath}/json/testRequestBody.htm", dataType:"json",//預期伺服器返回的型別 type:"post", contentType:"application/json",//傳送資訊到伺服器時編碼格式 //傳送到伺服器的資料 data:JSON.stringify({id:1,name:"SpringMVC 企業應用實戰"}), async:true,//表示非同步 success:function(data){ $("#id").html(data.id); $("#name").html(data.name); $("#auther").html(data.auther); }, error:function(){ alert("資料傳送失敗"); } }); } </script> </head> <body> 編號:<span id="id"></span><br> 書名:<span id="name"></span><br> 作者:<span id="auther"></span><br> </body> </html>

controller類
package com.anbow.controller;

import java.io.IOException;

import javax.servlet.http.HttpServletResponse;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;

import com.alibaba.fastjson.JSONObject;
import com.anbow.bean.Book;
@Controller
@RequestMapping(value=”/json”)
public class BookController {

@RequestMapping(value="/testRequestBody")
public void setJson(@RequestBody Book book,HttpServletResponse response){
    //JsonObject-lib是一個beans,controllers,maps,Java arrays 和xml和json互相轉換的包
    book.setAuther("喬峰");
    response.setContentType("text/html;charset=UTF-8");
    try {
        response.getWriter().print(JSONObject.toJSONString(book));
    } catch (IOException e) {
        e.printStackTrace();
    }
}

}

servlet-config.xml

<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:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc" 
    xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
           http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
           http://www.springframework.org/schema/aop
           http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
           http://www.springframework.org/schema/mvc 
           http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
           http://www.springframework.org/schema/context
           http://www.springframework.org/schema/context/spring-context-3.1.xsd
           http://www.springframework.org/schema/mvc
           http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
           http://www.springframework.org/schema/tx
           http://www.springframework.org/schema/tx/spring-tx-3.1.xsd" default-autowire="byName">

            <!-- spring可以自動掃描有base package下面的包或者是子包下面的Java檔案 
                                          如果掃描到有spring的相關注解的類,則把這些類註冊為spring的bean
            -->
            <context:component-scan base-package="com.anbow"></context:component-scan>
            <!-- 使用預設的servlet來響應靜態檔案 -->
            <mvc:default-servlet-handler/>
            <!-- 設定配置方案 -->
            <mvc:annotation-driven>
              <!-- 設定不使用預設的訊息轉換器 -->
              <mvc:message-converters register-defaults="false">
                 <!-- 配置spring的轉換器 -->
              <bean class="org.springframework.http.converter.StringHttpMessageConverter"></bean>
              <bean class="org.springframework.http.converter.xml.XmlAwareFormHttpMessageConverter"></bean>
              <bean class="org.springframework.http.converter.ByteArrayHttpMessageConverter"></bean>
              <bean class="org.springframework.http.converter.BufferedImageHttpMessageConverter"></bean>
              <!-- 配置fastjson 中實現HttpMessageConverter介面的轉換器 -->
              <bean id="fastJsonHttpMessageConverter" class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter">
              <!-- 加入支援的媒體型別 -->
              <property name="supportedMediaTypes">
                <list>
                    <!-- 這裡順序不能反,一定先寫text/html,不然IE下會出現下載提示 -->
                    <value>text/html;charset=UTF-8</value>
                    <value>application/json;charset=UTF-8</value>
                </list>
              </property>

              </bean>
              </mvc:message-converters>

            </mvc:annotation-driven>
            <!-- 檢視解析器 -->
            <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
                <property name="prefix">
                <value>/WEB-INF/jsp</value>
                </property>
                <property name="suffix">
                 <value>.jsp</value>
                </property>

            </bean>


</beans>