问从asp.net项目中的html页面调用ajax请求

EN

function ShowCurrentTime() {
            alert("before json");
            $.ajax({
                type: "POST",
                url: "json.aspx/GetCurrentTime",
                data: "{name: bob }",
                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: OnSuccess,
                failure: function (response) {
                    alert(response.d);
                }

            });
            alert("after json");
        }

        function OnSuccess(response) {
            alert(response.d);
        }

<input id="btnGetTime" type="button" value="Show Current Time"
                   onclick="ShowCurrentTime()" />

[WebMethod]
        public static string GetCurrentTime(string name)
        {
            return "Hello " + name + Environment.NewLine + "The Current Time is: "
                + DateTime.Now.ToString();
        }