ajax传值

 $(function(){
     $.ajax({
     url:'order!seatnum.action',
     data:{
     "entity.id":$("input[name='entity.id']").attr("value"),
     seattype:$("input[name='seattype']").attr("value")
     },
     type:'post',
     success:function(){
     alert("chenggong");
     },
     error:function(){}
     })
     alert($("#snum").text());
 })