MVC解决Json DataGrid返回的日期格式是/Date(20130450000365)

实际上是Json格式化问题，我们应该在返回json的时候进行格式化，我们需要重写系统的JsonResult类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web.Mvc;
using System.Text.RegularExpressions;
using System.Web;
using System.Web.Script.Serialization;
namespace App.Common
{
    public class ToJsonResult : JsonResult
    {
        const string error = "该请求已被封锁，因为敏感信息透露给第三方网站，这是一个GET请求时使用的。为了可以GET请求，请设置JsonRequestBehavior AllowGet。";
        /// <summary>
        /// 格式化字符串
        /// </summary>
        public string FormateStr
        {
            get;
            set;
        }
        public override void ExecuteResult(ControllerContext context)
        {
            if (context == null)
            {
                throw new ArgumentNullException("context");
            }
            if (JsonRequestBehavior == JsonRequestBehavior.DenyGet &&
                String.Equals(context.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase))
            {
                throw new InvalidOperationException(error);
            }

            HttpResponseBase response = context.HttpContext.Response;

            if (!String.IsNullOrEmpty(ContentType))
            {
                response.ContentType = ContentType;
            }
            else
            {
                response.ContentType = "application/json";
            }
            if (ContentEncoding != null)
            {
                response.ContentEncoding = ContentEncoding;
            }
            if (Data != null)
            {
                JavaScriptSerializer serializer = new JavaScriptSerializer();
                string jsonstring = serializer.Serialize(Data);


                //string p = @"\\/Date\((\d+)\+\d+\)\\/";

                string p = @"\\/Date\(\d+\)\\/";

                MatchEvaluator matchEvaluator = new MatchEvaluator(ConvertJsonDateToDateString);

                Regex reg = new Regex(p);

                jsonstring = reg.Replace(jsonstring, matchEvaluator);
                response.Write(jsonstring);
            }
        }

        /// <summary>
        /// 将Json序列化的时间由/Date(1294499956278+0800)转为字符串
        /// </summary>
        private string ConvertJsonDateToDateString(Match m)
        {

            string result = string.Empty;

            string p = @"\d";
            var cArray = m.Value.ToCharArray();
            StringBuilder sb = new StringBuilder();

            Regex reg = new Regex(p);
            for (int i = 0; i < cArray.Length; i++)
            {
                if (reg.IsMatch(cArray[i].ToString()))
                {
                    sb.Append(cArray[i]);
                }
            }
            // reg.Replace(m.Value;

            DateTime dt = new DateTime(1970, 1, 1);

            dt = dt.AddMilliseconds(long.Parse(sb.ToString()));

            dt = dt.ToLocalTime();

            result = dt.ToString("yyyy-MM-dd HH:mm:ss");

            return result;

        }
    }
}

创建Controller的基类，BaseController让Controller去继承Controller

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;
using App.Common;
using App.Models.Sys;

namespace App.Admin
{
    public class BaseController : Controller
    {
        /// <summary>
        /// 获取当前用户Id
        /// </summary>
        /// <returns></returns>
        public string GetUserId()
        {
            if (Session["Account"] != null)
            {
                AccountModel info = (AccountModel)Session["Account"];
                return info.Id;
            }
            else
            {

                return "";
            }
        }
        /// <summary>
        /// 获取当前用户Name
        /// </summary>
        /// <returns></returns>
        public string GetUserTrueName()
        {
            if (Session["Account"] != null)
            {
                AccountModel info = (AccountModel)Session["Account"];
                return info.TrueName;
            }
            else
            {
                return "";
            }
        }
        /// <summary>
        /// 获取当前用户信息
        /// </summary>
        /// <returns>用户信息</returns>
        public AccountModel GetAccount()
        {
            if (Session["Account"] != null)
            {
                return (AccountModel)Session["Account"];
            }
            return null;
        }


        protected override JsonResult Json(object data, string contentType, Encoding contentEncoding, JsonRequestBehavior behavior)
        {
            return new ToJsonResult
            {
                Data = data,
                ContentEncoding = contentEncoding,
                ContentType = contentType,
                JsonRequestBehavior = behavior,
                FormateStr = "yyyy-MM-dd HH:mm:ss"
            };
        }
        /// <summary>
        /// 返回JsonResult.24         /// </summary>
        /// <param name="data">数据</param>
        /// <param name="behavior">行为</param>
        /// <param name="format">json中dateTime类型的格式</param>
        /// <returns>Json</returns>
        protected JsonResult MyJson(object data, JsonRequestBehavior behavior, string format)
        {
            return new ToJsonResult
            {
                Data = data,
                JsonRequestBehavior = behavior,
                FormateStr = format
            };
        }
        /// <summary>
        /// 返回JsonResult42         /// </summary>
        /// <param name="data">数据</param>
        /// <param name="format">数据格式</param>
        /// <returns>Json</returns>
        protected JsonResult MyJson(object data, string format)
        {
            return new ToJsonResult
            {
                Data = data,
                FormateStr = format
            };
        }
        /// <summary>
        /// 检查SQL语句合法性
        /// </summary>
        /// <param name="sql"></param>
        /// <returns></returns>
        public bool ValidateSQL(string sql, ref string msg)
        {
            if (sql.ToLower().IndexOf("delete") > 0)
            {
                msg = "查询参数中含有非法语句DELETE";
                return false;
            }
            if (sql.ToLower().IndexOf("update") > 0)
            {
                msg = "查询参数中含有非法语句UPDATE";
                return false;
            }

            if (sql.ToLower().IndexOf("insert") > 0)
            {
                msg = "查询参数中含有非法语句INSERT";
                return false;
            }
            return true;
        }

    }
}

好了，我们运行，其实就是这么一回事！