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());
})