$(function () {

            $("#btnTest").click(function () {

                var array = new Array();

                array.push("");

                array.push("");

                array.push("");

               var ids = JSON.stringify(array);//格式为：[1,3,5]

                $.ajaxSettings.async = false;

                $.post("/Handler1.ashx", { ids: ids }, function (data) {

                    alert(data);

                }).error(function () {

                    alert("请求出错");

                });

            });

        });

 public void ProcessRequest(HttpContext context)

        {

            context.Response.ContentType = "text/plain";

            string strIds = context.Request.Form["ids"];

            //安装Json.NET

            List<string> ids = JsonConvert.DeserializeObject<List<string>>(strIds);

            context.Response.Write("ok");

        }