send js object to webapi or mvc

[HttpPost]

        public HttpResponseMessage AddInfo(UserInfoEntity userInfo)

        {

            return Request.CreateResponse(HttpStatusCode.OK,

                string.Format("{0},{1},{2}", userInfo.UserName, userInfo.Name, userInfo.PassWord));

        }

 

<script type="text/javascript">

            (function () {

                var createXhr = function () {

                    var xhr;

                    if (window.ActiveXObject) {

                        xhr = new XMLHttpRequest();

                    } else {

                        xhr = new XMLHttpRequest();

                    }

                    return xhr;

                };

                var ajax = function (obj) {

                    var xhr = createXhr();

                    xhr.open(obj.type, obj.url, true);

                    debugger;

                    xhr.setRequestHeader("Content-Type", "application/json");

                    xhr.send(obj.data);

                    xhr.onreadystatechange = function () {

                        //请求成功

                        if (xhr.readyState == 4 && xhr.status == 200) {

                            obj.success(xhr.responseText);

                        }

                        obj.complete();

                    };

                };

                window.common = {

                    ajax: ajax

                };

            })();



            $("#btnOk").on("click", function () {

                common.ajax({

                    url: "/Default/AddInfo",

                    type: "post",

                    dataType: "json",

                    data: JSON.stringify({

                        Name: "张三",

                        UserName: "zhangsan",

                        PassWord: "123456"

                    }),

                    success: function (result) {

                        alert(result);

                    },

                    complete: function () {

                    }

                });

            });

        </script>

这种方式webapicontroller和mvccontroller都可以接收到，不用反序列化，亲测可以