ASP.Net MVC中JSON处理。

实体数据Model

    [Serializable]
    public class UserModel
    {
        //public UserModel(string name, string classname, string stunumber)
        //{
        //    Uname = name;
        //    ClassName = classname;
        //    StuNumber = stunumber;
        //}

        public string Uname="";

        public string ClassName="";

        public string StuNumber="";
    }

生成JSON格式数据(实体转JSON)

   [HttpPost]
        public ActionResult About()
        {
            List<UserModel> allList = new List<UserModel>();
            //allList.Add(new UserModel("张三", "三年级一班", "stu007"));
            //allList.Add(new UserModel("李思", "四年级二班", "stu008"));
            //allList.Add(new UserModel("王五", "五年级九班", "stu002"));
            //allList.Add(new UserModel("蒋柳", "三年级八班", "stu011"));

            // var xyz = new { name = "zhangsan", pass = "7720135" };
            //return Json(xyz,JsonRequestBehavior.AllowGet);
            return Json(allList);


        }

将JSON格式数据转换为实体对象

需要引用：System.Runtime.Serialization.dll 和 System.ServiceModel.Web.dll

 public ActionResult Index()
        {
            ViewData["Message"] = "Welcome to ASP.NET MVC!";
            string jsstr = "[{"Uname":"张三","ClassName":"三年级一班","StuNumber":"stu007"},{"Uname":"李思","ClassName":"四年级二班","StuNumber":"stu008"},{"Uname":"王五","ClassName":"五年级九班","StuNumber":"stu002"},{"Uname":"蒋柳","ClassName":"三年级八班","StuNumber":"stu011"}]";
            using (System.IO.MemoryStream ms =
       new System.IO.MemoryStream(System.Text.Encoding.UTF8.GetBytes(jsstr)))
            {

                System.Runtime.Serialization.Json.DataContractJsonSerializer serializer =
                new System.Runtime.Serialization.Json.DataContractJsonSerializer(typeof(List<UserModel>));
                List<UserModel> tpAll = (List<UserModel>)serializer.ReadObject(ms);
                ViewData["Message"] = tpAll.Count;
            }

            return View();
        }