<script type="text/javascript">

        $(function () {

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

                var json = { "age": 12, "address": "hk",

                    "ship": [ { "custID": "sz", "cpname": "bookstrf" },{ "custID": "fkff", "cpname": "kfg"}]

                };

                $.ajax({

                    type: "post",

                    url: "Handler/test.ashx",

                    datatype: "json",

                    data: { name: JSON.stringify(json) },

                    async: true,

                    success: function (data) {

                        alert(data);

                    }

                });

            });

        });

    </script>

public class test : IHttpHandler

    {

        public void ProcessRequest(HttpContext context)

        {

            string ss = context.Request["name"];

            var serialize = new JavaScriptSerializer();

            var t = serialize.Deserialize<Model>(ss);

        }

        public bool IsReusable

        {

            get

            {

                return false;

            }

        }

        class Model

        {

            public int age {get; set;}

            public string address{get; set;}

            public List<Ship> ship{get; set;}

        }

        class Ship

        {

            public string custID{get; set;}

            public string cpname { get; set; }

        }

    }