6、添加Common类

一、新建Common文件夹，将公共类放入到此文件夹中

1、新建GridPager类

    public class GridPager
    {
        public int rows { get; set; }//每页行数
        public int page { get; set; }//当前页是第几页
        public string order { get; set; }//排序方式
        public string sort { get; set; }//排序列
        public int totalRows { get; set; }//总行数

        public int totalPages //总页数
        {
            get
            {
                return (int)Math.Ceiling((float)totalRows / (float)rows);
            }
        }
    }

2、新建SortingAndPaging类

     添加引入：using System.Linq.Expressions; 

                      using System.Reflection;

    public class SortingAndPaging
    {
        /// <summary>
        /// 排序
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="source"></param>
        /// <param name="sortExpression"></param>
        /// <param name="sortDirection"></param>
        /// <returns></returns>
        public static IQueryable<T> DataSorting<T>(IQueryable<T> source, string sortExpression, string sortDirection)
        {
            string sortingDir = string.Empty;
            if (sortDirection.ToUpper().Trim() == "ASC")
                sortingDir = "OrderBy";
            else if (sortDirection.ToUpper().Trim() == "DESC")
                sortingDir = "OrderByDescending";
            ParameterExpression param = Expression.Parameter(typeof(T), sortExpression);
            PropertyInfo pi = typeof(T).GetProperty(sortExpression);
            Type[] types = new Type[2];
            types[0] = typeof(T);
            types[1] = pi.PropertyType;
            Expression expr = Expression.Call(typeof(Queryable), sortingDir, types, source.Expression, Expression.Lambda(Expression.Property(param, sortExpression), param));
            IQueryable<T> query = source.AsQueryable().Provider.CreateQuery<T>(expr);
            return query;
        }
        /// <summary>
        /// 分页
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="source"></param>
        /// <param name="pageNumber"></param>
        /// <param name="pageSize"></param>
        /// <returns></returns>
        public static IQueryable<T> DataPaging<T>(IQueryable<T> source, int pageNumber, int pageSize)
        {
            if (pageNumber <= 1)
            {
                return source.Take(pageSize);
            }
            else
            {
                return source.Skip((pageNumber - 1) * pageSize).Take(pageSize);
            }
        }
        /// <summary>
        /// 排序并分页 
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="source"></param>
        /// <param name="sortExpression"></param>
        /// <param name="sortDirection"></param>
        /// <param name="pageNumber"></param>
        /// <param name="pageSize"></param>
        /// <returns></returns>
        public static IQueryable<T> SortingPaging<T>(IQueryable<T> source, string sortExpression, string sortDirection, int pageNumber, int pageSize)
        {
            IQueryable<T> query = DataSorting<T>(source, sortExpression, sortDirection);
            return DataPaging(query, pageNumber, pageSize);
        }
    }

3、新建Suggestion类（静态类）

    public static class Suggestion
    {
        public static string PlaseChooseToOperatingRecords { get { return "请选择要操作的记录"; } }
        public static string AreYouLogOff { get { return "您确定要注销系统吗？"; } }
        public static string Cancel { get { return "取消"; } }
        public static string CanNotOperationHasTheAudit { get { return "不能操作已经审核的记录"; } }
        public static string Check { get { return "审核"; } }
        public static string CheckFail { get { return "审核失败"; } }
        public static string CheckSucceed { get { return "审核成功"; } }
        public static string ClearLossJobs { get { return "清理离线任务"; } }
        public static string Close { get { return "关闭"; } }
        public static string CloseAll { get { return "关闭全部"; } }
        public static string CloseLeft { get { return "关闭左侧标签"; } }
        public static string CloseOther { get { return "除此之外全部关闭"; } }
        public static string CloseRight { get { return "关闭右侧标签"; } }
        public static string Create { get { return "创建"; } }
        public static string Delete { get { return "删除"; } }
        public static string DeleteFail { get { return "删除失败"; } }
        public static string DeleteSucceed { get { return "删除成功"; } }
        public static string Details { get { return "详细"; } }
        public static string Disable { get { return "不可用"; } }
        public static string Edit { get { return "编辑"; } }
        public static string EditFail { get { return "修改失败"; } }
        public static string EditSucceed { get { return "修改成功"; } }
        public static string Export { get { return "导出"; } }
        public static string InsertFail { get { return "创建失败"; } }
        public static string InsertSucceed { get { return "创建成功"; } }
        public static string Loading { get { return "加载中"; } }
        public static string LoginSucceed { get { return "登录成功,您可以继续操作！"; } }
        public static string LogOff { get { return "安全退出"; } }
        public static string NoAnyChanges { get { return "没有作任何修改"; } }
        public static string Operate { get { return "操作"; } }
        public static string PrimaryRepeat { get { return "主键重复"; } }
        public static string Query { get { return "查询"; } }
        public static string Reload { get { return "刷新"; } }
        public static string Return { get { return "返回"; } }
        public static string Save { get { return "保存"; } }
        public static string Select { get { return "选择"; } }
        public static string SetFail { get { return "设置失败"; } }
        public static string SetSucceed { get { return "设置成功"; } }
        public static string SwitchingSkin { get { return "切换主题,系统将重新加载?"; } }
        public static string Tip { get { return "提示"; } }
        public static string UnCheck { get { return "反审核"; } }
        public static string UnCheckFail { get { return "反审核失败"; } }
        public static string UnCheckSucceed { get { return "反审核成功"; } }
        public static string UnSelect { get { return "反选"; } }
        public static string Update { get { return "更新"; } }
        public static string UpdateFail { get { return "更新失败"; } }
        public static string UpdateSucceed { get { return "更新成功"; } }
        public static string UpLoad { get { return "上传"; } }
        public static string UserTimeOver { get { return "用户登录超时,请重新登录"; } }
        public static string Welcome { get { return "您好,欢迎您"; } }
        public static string YouCanOnlyOperateARecord { get { return "一次只能操作一条记录"; } }
        public static string YouWantToDeleteTheSelectedRecords { get { return "您确定要删除所选记录吗？"; } }
    }

 4、新建ValidationError类，（包含两个类）

    public class ValidationError
    {
        public ValidationError() { }
        public string ErrorMessage { get; set; }
    }

    public class ValidationErrors : List<ValidationError>
    {
        /// <summary>
        /// 添加错误
        /// </summary>
        /// <param name="errorMessage">信息描述</param>
        public void Add(string errorMessage)
        {
            base.Add(new ValidationError { ErrorMessage = errorMessage });
        }
        /// <summary>
        /// 获取错误集合
        /// </summary>
        public string Error
        {
            get
            {
                string error = "";
                this.All(a =>
                {
                    error += a.ErrorMessage;
                    return true;
                });
                return error;
            }
        }
    }

  5、新建JsonHandler类，（包含两个类）

    public class JsonHandler
    {
        public static JsonMessage CreateMessage(int ptype, string pmessage, string pvalue)
        {
            JsonMessage json = new JsonMessage()
            {
                type = ptype,
                message = pmessage,
                value = pvalue
            };
            return json;
        }
        public static JsonMessage CreateMessage(int ptype, string pmessage)
        {
            JsonMessage json = new JsonMessage()
            {
                type = ptype,
                message = pmessage,
            };
            return json;
        }
    }

    public class JsonMessage
    {
        public int type { get; set; }
        public string message { get; set; }
        public string value { get; set; }
    }

6、新建ToJsonResult类，继承JsonResult，添加引用

using System.Text;

using System.Web.Mvc;

using System.Web.Script.Serialization;

using System.Text.RegularExpressions;

    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");
            return result;
        }
    }

7、新建ExportExcelResult类，继承ActionResult，添加引用

using System.Text;

using System.Web.Mvc;

using System.IO;

using ClosedXML.Excel;

    public class ExportExcelResult : ActionResult
    {
        public string SheetName { get; set; }
        public string FileName { get; set; }
        public DataTable ExportData { get; set; }

        public ExportExcelResult()
        {
        }

        public override void ExecuteResult(ControllerContext context)
        {
            if (ExportData == null)
            {
                throw new InvalidDataException("ExportData");
            }
            if (string.IsNullOrWhiteSpace(this.SheetName))
            {
                this.SheetName = "Sheet1";
            }
            if (string.IsNullOrWhiteSpace(this.FileName))
            {
                this.FileName = string.Concat(
                    "ExportData_",
                    DateTime.Now.ToString("yyyyMMddHHmmss"),
                    ".xlsx");
            }

            this.ExportExcelEventHandler(context);
        }

        /// <summary>
        /// Exports the excel event handler.
        /// </summary>
        /// <param name="context">The context</param>
        private void ExportExcelEventHandler(ControllerContext context)
        {
            try
            {
                var workbook = new XLWorkbook();

                if (this.ExportData != null)
                {
                    context.HttpContext.Response.Clear();

                    // 编码
                    context.HttpContext.Response.ContentEncoding = Encoding.UTF8;

                    // 设置网页ContentType
                    context.HttpContext.Response.ContentType =
                        "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";

                    // 导出名字
                    var browser = context.HttpContext.Request.Browser.Browser;
                    var exportFileName = browser.Equals("Firefox", StringComparison.OrdinalIgnoreCase)
                        ? this.FileName
                        : HttpUtility.UrlEncode(this.FileName, Encoding.UTF8);

                    context.HttpContext.Response.AddHeader(
                        "Content-Disposition",
                        string.Format("attachment;filename={0}", exportFileName));

                    // Add all DataTables in the DataSet as a worksheets
                    workbook.Worksheets.Add(this.ExportData, this.SheetName);

                    using (var memoryStream = new MemoryStream())
                    {
                        workbook.SaveAs(memoryStream);
                        memoryStream.WriteTo(context.HttpContext.Response.OutputStream);
                        memoryStream.Close();
                    }
                }
                workbook.Dispose();
            }
            catch (Exception ex)
            {
                throw;
            }
        }
    }

二、controllers下新建BaseController.cs，继承Controller

    public class BaseController : Controller
    {
        //
        // GET: /Base/
        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
            };
        }
    }