MVC项目开发中那些用到的知识点(Jquery ajax提交Json后台处理)

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" onclick="TestList()" />
<input type="button" value=test onclick="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);
        }