Ajax跨域请求的解决

来源：互联网发布：手机如何网络翻墙编辑：程序博客网时间：2024/06/16 13:50

test-client的index.jsp里面的Ajax访问test-service的Controller

Controller返回json时无法接接收，JSONP方式处理后可接收

Client:

<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>jquery--getJSON方法实现ajax功能</title>        <script type="text/javascript" src="jquery.js"></script>        <script type="text/javascript">/**页面加载完立即执行*/        $(function(){        //alert("JJJ");$.getJSON("http://127.0.0.1:8080/test-service/json?callback=?&id=123&age=22", function(data) {                alert(data.name);             });});                    </script>    <script type="text/javascript">/**触发执行*/            /*$(function() {                $("#button1").click(function() {                                      //打开文件，并通过回调函数处理获取的数据                    $.getJSON("userInfo.json", function(data) {                        alert(data.name);                    });                });            });*/</script></head><body><div class="divTitle">            <input type="button" id="button1" value="获取数据"/>        </div>        <div id="divTip"></div></body></html>

Service:

package com.xh.controller;import org.springframework.http.MediaType;import org.springframework.stereotype.Controller;import org.springframework.util.StringUtils;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.ResponseBody;@Controllerpublic class JsonController {//@RequestMapping("/json")@RequestMapping(value="/json"/*,produces=MediaType.APPLICATION_JSON_VALUE+";charset=utf-8"*/)@ResponseBodypublic String getJson(String id,String callback,String age ){System.out.println("id:"+id);System.out.println("age:"+age);String json="{'name':'zhangs121212andsads'}";System.out.println(StringUtils.isEmpty(callback));System.out.println(json );System.out.println(callback );if(StringUtils.isEmpty(callback)){return json;}else{System.out.println(callback + "(" + json + ");");return callback + "(" + json + ");";}}}

web.xml

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"id="taotao" version="2.5"><display-name>tets-service</display-name><welcome-file-list><welcome-file>index.jsp</welcome-file></welcome-file-list><!-- 初始化spring容器 --><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring/ApplicationContext-*.xml</param-value></context-param><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener><!-- 解决post乱码 --><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><!-- springmvc的前端控制器 --><servlet><servlet-name>tets-service</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!-- contextConfigLocation不是必须的， 如果不配置contextConfigLocation， springmvc的配置文件默认在：WEB-INF/servlet的name+"-servlet.xml" --><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring/springMVC.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>tets-service</servlet-name><url-pattern>/</url-pattern></servlet-mapping></web-app>

springMVC.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:p="http://www.springframework.org/schema/p"xmlns:context="http://www.springframework.org/schema/context"xmlns:mvc="http://www.springframework.org/schema/mvc"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-4.0.xsd        http://www.springframework.org/schema/context         http://www.springframework.org/schema/context/spring-context.xsd">            <!-- 配置包扫描器 -->            <context:component-scan base-package="com.xh.controller"></context:component-scan>    <!-- 配置注解驱动 -->        <mvc:annotation-driven/><!-- 静态资源映射 --><!-- <mvc:resources location="/category.json" mapping="/category.json"/> --></beans>

0 0