ajax前台数据到后台

  var username = $("#id").val();
            var user={"userAccount":username,"userPassword":"1233","platform":"100","deviceFigure":"121212121"};
            $.ajax({
                url : "/fras/api/user/first/login",//首次的登陆请求地址
                type : "post",//请求方式
                data :  user,
                success : function(jdata) {
                    if(jdata.data == "Y" ){
                       alert("登陆成功,正在启动设备！！");
                    }
                    if(jdata.data == "N"){
                        alert("账号有误,请重新输入!");
                    }
                }
            });
        }