1.在Controller層實現(xiàn)jsonp接口

/***Project Name: gspReceiveServer*File Name: EquipmentController.java*Package Name: com.ltmap.platform.equipment.controller*Date: 2016年8月3日 上午9:46:35*Copyright (c) 2016,578888218@qq.com All Rights Reserved. */package com.ltmap.platform.equipment.controller;import java.io.IOException;import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.ResponseBody;import com.ltmap.platform.equipment.service.EquipmentService;/***Title: EquipmentController<br/>*Description:*@Company: 青島勵圖高科<br/>*@author: 劉云生*@version: v1.0*@since: JDK 1.7.0_80*@Date: 2016年8月3日 上午9:46:35 <br/> */ @Controller public class EquipmentController {@AutowiredEquipmentService equipmentService;@RequestMapping(value = "updateEquipment", method ={RequestMethod.POST,RequestMethod.GET}, produces = "application/json; charset=utf-8")@ResponseBodypublic int updateEquipment(){return equipmentService.updateEquipment();}@RequestMapping("updateEquipmentJsonp") public void get(HttpServletRequest request,HttpServletResponse response) { int flag=equipmentService.updateEquipment();response.setContentType("text/plain"); String callbackFunName =request.getParameter("<span style="color:#ff6666;">callbackparam</span>");//得到j(luò)s函數(shù)名稱 try { response.getWriter().write(callbackFunName + "([ { flag:\""+flag+"\"}])"); //返回jsonp數(shù)據(jù) } catch (IOException e) { e.printStackTrace(); } } }

2.利用ajax進行jsonp的跨域請求

$.ajax({ url: jsonpUrl,type: 'POST', dataType: 'jsonp', jsonp: '<span style="color:#ff0000;">callbackparam</span>', jsonpCallback:'jsonpCallback', success: function(json){ console.log("請求路徑："+jsonpUrl+"返回結(jié)果："+json);console.log(json);}, error: function(){ // alert('fail'); } });

3.注意：紅字參數(shù)名稱要保持一致

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