json格式

<script type="text/javascript">
var URL= "${pageContext.request.contextPath}/rest/xxxService/xxxMethod.json"; 
$("#XXX").click(function(){    
$.post(URL,{
     参数：value,
     ..... :  ........
},function(result){
if(判断返回结果){
    ...............
}
},"json"); */
});
</script>