- <!DOCTYPEhtmlPUBLIC"-//W3C//DTDHTML4.01Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">
- <html>
- <head>
- <Metahttp-equiv="Content-Type"content="text/html;charset=UTF-8">
- <title>Inserttitlehere</title>
- <scripttype="text/javascript"src="resource/js/jquery-1.7.2.js"></script>
- </head>
- <scripttype="text/javascript">
- $(function(){
- /*
- //简写形式，效果相同
- $.getJSON("http://app.example.com/base/json.do?sid=1494&busiId=101&jsonpCallback=?",
- function(data){
- $("#showcontent").text("Result:"+data.result)
- });
- */
- $.ajax({
- type:"get",0); background-color:inherit">async:false,0); background-color:inherit">url:"http://app.example.com/base/json.do?sid=1494&busiId=101",0); background-color:inherit">dataType:"jsonp",//数据类型为jsonp
- jsonp:"jsonpCallback",//服务端用于接收callback调用的function名的参数
- success:function(data){
- },0); background-color:inherit">error:function(){
- alert('fail');
- }
- </script>
- <body>
- <divid="showcontent">Result:</div>
- </body>
- </html>
二.服务器端
- importjava.io.IOException;
- importjava.io.PrintWriter;
- importjava.util.HashMap;
- importjava.util.Map;
- importjavax.servlet.http.HttpServletRequest;
- importjavax.servlet.http.HttpServletResponse;
- importnet.sf.json.JSONObject;
- importorg.springframework.stereotype.Controller;
- importorg.springframework.web.bind.annotation.RequestMapping;
- @Controller
- publicclassExchangeJsonController{
- @RequestMapping("/base/json.do")
- voidexchangeJson(HttpServletRequestrequest,HttpServletResponseresponse){
- try{
- response.setContentType("text/plain");
- response.setHeader("Pragma","No-cache");
- response.setHeader("Cache-Control","no-cache");
- response.setDateHeader("Expires",0);
- Map<String,String>map=newHashMap<String,String>();
- map.put("result","content");
- PrintWriterout=response.getWriter();
- JSONObjectresultJSON=JSONObject.fromObject(map);//根据需要拼装json
- StringjsonpCallback=request.getParameter("jsonpCallback");//客户端请求参数
- out.println(jsonpCallback+"("+resultJSON.toString(1,1)+")");//返回jsonp格式数据
- out.flush();
- out.close();
- }catch(IOExceptione){
- e.printstacktrace();
- }
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