My jsonp 整合 spring (不太灵活,限制大)

package com.xiuye.callbackmapper;import java.util.List;import java.util.Map;import javax.annotation.Resource;import net.sf.json.JSONArray;import org.springframework.stereotype.Component;import com.xiuye.bean.Test;import com.xiuye.mapper.TestMapper;import com.xiuye.jsonp.callback.AbstractJsonpCallback;@Componentpublic class JsonpCallbackDemo extends AbstractJsonpCallback {//必须继承AbstractJsonpCallback@Resourceprivate TestMapper testDao;public String test1(){return "{msg : 'json no parameter'}";}/** * 返回必须是json字符串 * @param map * @return */public String test2(Map<String,String[]> map){System.out.println("jsonp parameter := " + map);return "{msg : 'json have parameter'}";}public String test3(){List<Test> list = this.testDao.findAll();JSONArray object = JSONArray.fromObject(list);return object.toString();}}

package com.xiuye.controller;import java.util.Map;import javax.servlet.http.HttpServletRequest;import org.apache.log4j.Logger;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.xiuye.jsonp.callback.manager.JsonpCallbackManager;import com.xiuye.jsonp.execute.DefaultExecute;@Controllerpublic class JsonpCallbackController {private Logger log = Logger.getLogger(JsonpCallbackController.class);@RequestMapping("josnpNoParameter.do")@ResponseBodypublic String josnpNoParameter(String callback) {log.debug("jsonpNoParameter handling ...");// System.out.println("execute : = ......");DefaultExecute exec = JsonpCallbackManager.defaultExecute();// System.out.println("execute end : = ......");return exec.jsonp(callback);}@RequestMapping("josnpWithParameter.do")@ResponseBodypublic String josnpWithParameter(String callback, HttpServletRequest req) {log.debug("josnpWithParameter handling ...");Map<String, String[]> map = req.getParameterMap();// System.out.println("map := " + map);// System.out.println("execute : = ......");DefaultExecute exec = JsonpCallbackManager.defaultExecute();// System.out.println("execute end : = ......");return exec.jsonp(callback, map);}/** * just for jquery jsonp * @param callback * @param req * @return */@RequestMapping(value="josnp.do",method=RequestMethod.POST,produces={"application/json;charset=UTF-8"})@ResponseBodypublic String josnp(String callback, HttpServletRequest req) {log.debug("josnp post ...");Map<String, String[]> map = req.getParameterMap();DefaultExecute exec = JsonpCallbackManager.defaultExecute();log.debug("parameters' map := " + map);if (map != null && !map.isEmpty() && map.containsKey("callback")) {if (map.size() == 2) {return exec.jsonp(callback);} else if (map.size() > 2) {return exec.jsonp(callback, map);}}return "callback('not have jsonp callback function!')";}@RequestMapping(value="josnp.do",method=RequestMethod.GET,produces={"application/json;charset=UTF-8"})@ResponseBodypublic String josnpGet(String callback, HttpServletRequest req) {log.debug("jsonp get");return this.josnp(callback, req);}@RequestMapping(value="josnp.do",method=RequestMethod.PUT,produces={"application/json;charset=UTF-8"})@ResponseBodypublic String josnpPut(String callback, HttpServletRequest req) {log.debug("jsonp put");return this.josnp(callback, req);}@RequestMapping(value="josnp.do",method=RequestMethod.DELETE,produces={"application/json;charset=UTF-8"})@ResponseBodypublic String josnpDelete(String callback, HttpServletRequest req) {log.debug("jsonp delete");return this.josnp(callback, req);}}

<beansxmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:context="http://www.springframework.org/schema/context"xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee"xmlns:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop"xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:util="http://www.springframework.org/schema/util"xsi:schemaLocation="    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd    http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.2.xsd    http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.2.xsd    http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.2.xsd    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd"><!-- <bean class="com.tienon.callbackmapper.JsonpCallbackDemo"></bean> --><context:component-scan base-package="com.xiuye.callbackmapper"></context:component-scan><!--让mapper生效,但是不能懒加载,否则错误,即不能使用lazy-init属性--></beans>

spring入口配置(web.xml):

servlet><servlet-name>springDispatcher</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!-- it's just for springDispatcher --><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring/*.xml</param-value></init-param><load-on-startup>1</load-on-startup></servlet><servlet-mapping><servlet-name>springDispatcher</servlet-name><url-pattern>*.do</url-pattern></servlet-mapping>

其他域名的项目请求:

<!DOCTYPE html><html><head><meta charset="UTF-8"><title>APP-JSONP-CALL</title><script type="text/javascript" src="js/jquery-2.1.4.js"></script><script type="text/javascript" src="http://localhost/js/test.js"></script><script type="text/javascript">/* function jsonp(s) {alert(s);} *///alert("jsonp no");/*不要想无参数后台函数传送参数,否则,后台报错!*/$.ajax({dataType : "JSONP",jsonp : "callback",//请求自动带上callback参数，callback值为jsonpCallback的值  jsonpCallback : "test1",//接口服务器应该返回字符串数据格式：test1(JSON数据)  type : "POST",url : "http://www.xiuye.com/josnp.do",//接口服务器地址  data : {/* user : "xiuye" */},//请求数据  success : function(response) {//成功执行  console.log(response);//alert("jsonp OK");},error : function(e) {//失败执行  alert(e.status + ',' + e.statusText);}});//alert("jsonp have");$.ajax({dataType : "JSONP",jsonp : "callback",//请求自动带上callback参数，callback值为jsonpCallback的值  jsonpCallback : "test2",//接口服务器应该返回字符串数据格式：test2(JSON数据)  type : "POST",url : "http://www.xiuye.com/josnp.do",//接口服务器地址  data : {user : "xiuye",password : "123456",obj : [ {kk : "eee",ll : "dsdf"}, {kk : "123",ll : "56"} ]},//请求数据  success : function(response) {//成功执行  console.log(response);//alert("jsonp OK");},error : function(e) {//失败执行  alert(e.status + ',' + e.statusText);}});$.ajax({dataType : "JSONP",jsonp : "callback",//请求自动带上callback参数，callback值为jsonpCallback的值  jsonpCallback : "test3",//接口服务器应该返回字符串数据格式：test3(JSON数据)  type : "POST",url : "http://www.xiuye.com/josnp.do",//接口服务器地址  /* data : {},//请求数据   */success : function(response) {//成功执行  console.log(response);alert("jsonp test3 := " + response);},error : function(e) {//失败执行  alert(e.status + ',' + e.statusText);}});</script></head><body></body></html>

注:1.请求的参数个数和方法名必须与后台一致,否则报错.

2.后台接收的参数在Map<String,String[]>中,如有参数只需在mapper类中方法上且只能写Map<String,String[]>形参得到,请求参数!

3.限制大(不太灵活方便),也许有隐藏的bug,仅作为练习.

进入 xiuye jsonp jar 下载地址