$(document).ready(function(){
var url='http://localhost:8080/WorkGroupManagment/open/getGroupById"
+"?id=1&callback=?';
$.ajax({
url:url,
dataType:'jsonp',
processData: false, 
type:'get',
success:function(data){
alert(data.name);
},
error:function(XMLHttpRequest, textStatus, errorThrown) {
alert(XMLHttpRequest.status);
alert(XMLHttpRequest.readyState);
alert(textStatus);
}});
}); 

{
"message":"获取成功",
"state":"1",
"result":{"name":"工作组1","id":1,"description":"11"}
} 

callback({
"message":"获取成功",
"state":"1",
"result":{"name":"工作组1","id":1,"description":"11"}
}) 

@RequestMapping(value = "/getGroupById")
public String getGroupById(@RequestParam("id") Long id,
HttpServletRequest request, HttpServletResponse response)
throws IOException {
String callback = request.getParameter("callback");
ReturnObject result = null;
Group group = null;
try {
group = groupService.getGroupById(id);
result = new ReturnObject(group, "获取成功", Constants.RESULT_SUCCESS);
} catch (BusinessException e) {
e.printStackTrace();
result = new ReturnObject(group, "获取失败", Constants.RESULT_FAILED);
}
String json = JsonConverter.bean2Json(result);
response.setContentType("text/html");
response.setCharacterEncoding("utf-8");
PrintWriter out = response.getWriter();
out.print(callback + "(" + json + ")");
return null;
} 

@RequestMapping(value = "/getGroupById")
@ResponseBody
public ReturnObject getGroupById(@RequestParam("id") Long id,
HttpServletRequest request, HttpServletResponse response){
String callback = request.getParameter("callback");
ReturnObject result = null;
Group group = null;
try {
group = groupService.getGroupById(id);
result = new ReturnObject(group, "获取成功", Constants.RESULT_SUCCESS);
} catch (BusinessException e) {
e.printStackTrace();
result = new ReturnObject(group, "获取失败", Constants.RESULT_FAILED);
}
return result;
} 

var url="http://localhost:8080/WorkGroupManagment/open/getGroupById"
+"?id=1&callback=?";
$.jsonp({
"url": url,
"success": function(data) {
$("#current-group").text("当前工作组:"+data.result.name);
},
"error": function(d,msg) {
alert("Could not find user "+msg);
}
}); 

<script type="text/javascript"> 
var flightHandler = function(data){ 
alert('你查询的航班结果是：票价 ' + data.price + ' 元，' + '余票 ' + data.tickets + ' 张。'); 
}; 
var url = "http://abc.com:8080/AjaxCrossDomain/data/data.jsp?code=CA1998&callback=flightHandler"; 
var script = document.createElement('script'); 
script.setAttribute('src', url); 
document.getElementsByTagName('head')[0].appendChild(script); 
</script> 

<%@ page language="java" pageEncoding="UTF-8"%> 
<% 
String callback = request.getParameter("callback"); 
StringBuilder builder = new StringBuilder(); 
builder.append(callback).append("({").append("\"code\": \"CA1998\",").append("\"price\": 1780,").append("\"tickets\": 5").append("});"); 
out.println(builder.toString()); 
%>

<script type="text/javascript"> 
$(function(){ 
$.ajax({ 
type: "get", 
async: false, 
url: "http://abc.com:8080/AjaxCrossDomain/jsonp/data.jsp", 
dataType: "jsonp", 
jsonp: "callback", 
jsonpCallback:"flightHandler", 
success: function(json){ 
alert('您查询到航班信息：票价： ' + json.price + ' 元，余票： ' + json.tickets + ' 张。'); 
}, 
error: function(){ 
alert('fail'); 
} 
}); 
}); 
</script>