spring mvc 环境Fastjson转换器jsonp请求

 $.ajax({
    type:"post",
    url:"http://localhost/spingmvc_jsonp_a/test/testFastjsonJsonp_01.do",
    data:{"sid":1889433}, //传递的数据
    dataType:"jsonp", //请求返回数据的模式为jsonp（json with padding）本身就是请求json数据  跨域是一种补充
    jsonp:"callBack", //jsonp请求中重写回调函数的名字。
    jsonpCallback:"_LG_CallBack", //指定使用的callBack名字  可选   不指定就由jQuery自动生成一个名字
    success:function(data){
        alert(data.id + "--" + data.name);
    },
    error:function(){
        alert("请求出错！");
    }
}); 

<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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd">

    
    <context:component-scan base-package="com.springmvc.controller">context:component-scan>

    
    
    
     
    
    
    <mvc:annotation-driven>
        <mvc:message-converters register-defaults="true">
            <bean id="fastJsonHttpMessageConverter" class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter4">
                <property name="supportedMediaTypes">
                    <list>
                        <value>text/html;charset=UTF-8value>
                        <value>application/json;charset=UTF-8value>
                    list>
                property>
            bean>
        mvc:message-converters>
    mvc:annotation-driven>

beans>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">

  <servlet>
    <servlet-name>springDispatcherServletservlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
    <init-param>
      <param-name>contextConfigLocationparam-name>
      <param-value>classpath:com/springmvc/conf/springmvc-fastjson.xmlparam-value>
    init-param>
    <load-on-startup>1load-on-startup>
  servlet>
  <servlet-mapping>
    <servlet-name>springDispatcherServletservlet-name>
    <url-pattern>/url-pattern>
  servlet-mapping>
  <filter>
    <filter-name>CharacterEncodingFilterfilter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
    <init-param>
      <param-name>encodingparam-name>
      <param-value>UTF-8param-value>
    init-param>
    <init-param>
      <param-name>forceEncodingparam-name>
      <param-value>trueparam-value>
    init-param>
  filter>
  <filter-mapping>
    <filter-name>CharacterEncodingFilterfilter-name>
    <url-pattern>*url-pattern>
  filter-mapping>
  <servlet-mapping>
    <servlet-name>defaultservlet-name>
    <url-pattern>*.jsurl-pattern>
    <url-pattern>*.cssurl-pattern>
    <url-pattern>*.icourl-pattern>
    <url-pattern>*.pngurl-pattern>
    <url-pattern>*.jpegurl-pattern>
    <url-pattern>*.jpgurl-pattern>
    <url-pattern>*.eoturl-pattern>
    <url-pattern>*.svgurl-pattern>
    <url-pattern>*.ttfurl-pattern>
    <url-pattern>*.woffurl-pattern>
    <url-pattern>*.htmlurl-pattern>
  servlet-mapping>
web-app>

package com.springmvc.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import com.alibaba.fastjson.JSONPObject;
import com.springmvc.vo.User;

@RestController
@RequestMapping("/test")
public class TestFastjsonJsonpController {

    @RequestMapping("/testFastjsonJsonp_01.do")
    public JSONPObject testFastjsonJsonp_01(String callBack , int sid){

        User user = new User(1111, "老龚");

        System.out.println(callBack + "----" + sid );

        //注意这里使用的是 JSONPObject  而不是 JSONObject
        JSONPObject jsonpObject = new JSONPObject(callBack);
        jsonpObject.addParameter(user);

        return jsonpObject ;
    }
}