String.format = function () {if (arguments.length == 0)return null;var str = arguments[0];for (var i = 1; i < arguments.length; i++) {var re = new RegExp('\\{' + (i - 1) + '\\}', 'gm');str = str.replace(re, arguments[i]);}return str;
}String.toSerialize = function (obj) {var ransferCharForJavascript = function (s) {var newStr = s.replace(/[\x26\x27\x3C\x3E\x0D\x0A\x22\x2C\x5C\x00]/g,function (c) {ascii = c.charCodeAt(0)return '\\u00' + (ascii < 16 ? '0' + ascii.toString(16) : ascii.toString(16))});return newStr;}if (obj == null) {return null}else if (obj.constructor == Array) {var builder = [];builder.push("[");for (var index in obj) {if (typeof obj[index] == "function") continue;if (index > 0) builder.push(",");builder.push(String.toSerialize(obj[index]));}builder.push("]");return builder.join("");}else if (obj.constructor == Object) {var builder = [];builder.push("{");var index = 0;for (var key in obj) {if (typeof obj[key] == "function") continue;if (index > 0) builder.push(",");builder.push(String.format("\"{0}\":{1}", key, String.toSerialize(obj[key])));index++;}builder.push("}");return builder.join("");}else if (obj.constructor == Boolean) {return obj.toString();}else if (obj.constructor == Number) {return obj.toString();}else if (obj.constructor == String) {return String.format('"{0}"', ransferCharForJavascript(obj));}else if (obj.constructor == Date) {return String.format('{"__DataType":"Date","__thisue":{0}}', obj.getTime() - (new Date(1970, 0, 1, 0, 0, 0)).getTime());}else if (this.toString != undefined) {return String.toSerialize(obj);}
}

@{ViewBag.Title = "主页";
}<script src="@Url.Content("~/Scripts/JsonNet.js")" type="text/javascript"></script><script type="text/javascript">function Test() {var data={UserId:"11",UserName:"2211"};$.post("../Home/Test", { User: String.toSerialize(data) }, function (data) { alert(String.toSerialize(data)); });}function TestList() {var data = [{ UserId: "11", UserName: { FirstName: "323", LastName: "2323" }, Keys: ["xiaoming", "xiaohong"] },{ UserId: "22", UserName: { FirstName: "323", LastName: "2323" }, Keys: ["xiaoming", "xiaohong"] },{ UserId: "33", UserName: { FirstName: "323", LastName: "2323" }, Keys: ["xiaoming", "xiaohong"] }];$.post("../Home/TestList", { User: String.toSerialize(data) }, function (data) { alert(String.toSerialize(data)); });}</script>
<h2>@ViewBag.Message</h2>
<p>若要了解有关 ASP.NET MVC 的更多信息，请访问 <a href="http://asp.net/mvc" title="ASP.NET MVC 网站">http://asp.net/mvc</a>。
</p>
<input type="button" value="testList" οnclick="TestList()" />
<input type="button" value=test οnclick="Test()" />

namespace MvcApplication3.Helper
{public class JsonBinder<T> : IModelBinder{public object BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext){//从请求中获取提交的参数数据 var json = controllerContext.HttpContext.Request.Form[bindingContext.ModelName] as string;//提交参数是对象 if (json.StartsWith("{") && json.EndsWith("}")){JObject jsonBody = JObject.Parse(json);JsonSerializer js = new JsonSerializer();object obj = js.Deserialize(jsonBody.CreateReader(), typeof(T));return obj;}//提交参数是数组 if (json.StartsWith("[") && json.EndsWith("]")){IList<T> list = new List<T>();JArray jsonRsp = JArray.Parse(json);if (jsonRsp != null){for (int i = 0; i < jsonRsp.Count; i++){JsonSerializer js = new JsonSerializer();try{object obj = js.Deserialize(jsonRsp[i].CreateReader(), typeof(T));list.Add((T)obj);}catch (Exception e){throw e;}}}return list;}return null;}}
}

 //[JsonObject]public class UserInfo{public string UserId{get;set;}public UserName UserName{get;set;}public List<string> keys { get; set; }}public class UserName{public string FirstName { get; set; }public string LastName { get; set; }}[HttpPost]public ActionResult TestList([ModelBinder(typeof(JsonBinder<UserInfo>))]List<UserInfo> User){List<UserInfo> list = User;return Json(list, JsonRequestBehavior.AllowGet);}[HttpPost]public ActionResult Test([ModelBinder(typeof(JsonBinder<UserInfo>))]UserInfo User){UserInfo Userinfo = User;return Json(User, JsonRequestBehavior.AllowGet);}