微调

performance/Performance.Infrastructure/Extensions/Extensions.TimeStamp.cs

+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace Performance.Infrastructure
+{
+    public static partial class UtilExtensions
+    {
+        /// <summary>
+        /// 时间戳计时开始时间
+        /// </summary>
+        private static DateTime timeStampStartTime = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
+
+        /// <summary>
+        /// DateTime转换为10位时间戳（单位：秒）
+        /// </summary>
+        /// <param name="dateTime"></param>
+        /// <returns></returns>
+        public static long ToTimeStamp(this DateTime dateTime)
+        {
+            return (long)(dateTime.ToUniversalTime() - timeStampStartTime).TotalSeconds;
+        }
+
+        /// <summary>
+        /// DateTime转换为13位时间戳（单位：毫秒）
+        /// </summary>
+        /// <param name="dateTime"> DateTime</param>
+        /// <returns>13位时间戳（单位：毫秒）</returns>
+        public static long ToLongTimeStamp(this DateTime dateTime)
+        {
+            return (long)(dateTime.ToUniversalTime() - timeStampStartTime).TotalMilliseconds;
+        }
+
+        /// <summary>
+        /// 10位时间戳（单位：秒）转换为DateTime
+        /// </summary>
+        /// <param name="timeStamp">10位时间戳（单位：秒）</param>
+        /// <returns>DateTime</returns>
+        public static DateTime ToDateTime(this long timeStamp)
+        {
+            return timeStampStartTime.AddSeconds(timeStamp).ToLocalTime();
+        }
+
+        /// <summary>
+        /// 13位时间戳（单位：毫秒）转换为DateTime
+        /// </summary>
+        /// <param name="longTimeStamp">13位时间戳（单位：毫秒）</param>
+        /// <returns>DateTime</returns>
+        public static DateTime ToDateTimeLongTimeStamp(this long longTimeStamp)
+        {
+            return timeStampStartTime.AddMilliseconds(longTimeStamp).ToLocalTime();
+        }
+    }
+}

performance/Performance.Services/OnlineExcel/Model/EpChanage.cs

@@ -26,6 +26,7 @@ public class OperationRecord
     public class EpChanage
     {
         public string SheetName { get; set; }
+        public string Version { get; set; }
         public OperationRecord[] OperationRecord { get; set; }
         public List<dynamic> Data { get; set; }
     }

performance/Performance.Services/OnlineExcel/Model/ExcelSheetInfo.cs

+namespace Performance.Services.OnlineExcel
+{
+    public partial class OnlineExcelService
+    {
+        public class ExcelSheetInfo
+        {
+            public string Name { get; set; }
+            public int Row { get; set; }
+            public int Column { get; set; }
+            public string Version { get; set; }
+            public string Message
+            {
+                get
+                {
+                    if (Row * Column > 500 * 50)
+                        return "数据量很大，加载需要较长时间";
+                    else if (Row * Column > 100 * 50)
+                        return "数据较多，可能需要较长加载时间";
+                    return "";
+                }
+            }
+        }
+    }
+}
\ No newline at end of file

performance/Performance.Services/OnlineExcel/OnlineExcelService.Read.cs

@@ -2,7 +2,9 @@
 using Newtonsoft.Json;
 using OfficeOpenXml;
 using OfficeOpenXml.Style;
+using Performance.DtoModels;
 using Performance.EntityModels;
+using Performance.Infrastructure;
 using Polly;
 using System;
 using System.Collections.Generic;
@@ -38,24 +40,6 @@ public OnlineExcelService(IMemoryCache cache)
         {
             _cache = cache;
         }
-
-        public class ExcelSheetInfo
-        {
-            public string Name { get; set; }
-            public int Row { get; set; }
-            public int Column { get; set; }
-            public string Message
-            {
-                get
-                {
-                    if (Row * Column > 500 * 50)
-                        return "数据量很大，加载需要较长时间";
-                    else if (Row * Column > 100 * 50)
-                        return "数据较多，可能需要较长加载时间";
-                    return "";
-                }
-            }
-        }
         /// <summary>
         /// 读取Sheet名称
         /// </summary>
@@ -70,6 +54,9 @@ public List<ExcelSheetInfo> GetExcelSheetName(per_allot allot)
 
             sheetNames = sheetNames ?? new List<ExcelSheetInfo>();
             FileInfo file = new FileInfo(allot.Path);
+
+            var version = file.LastWriteTimeUtc.ToTimeStamp();
+
             using (ExcelPackage package = new ExcelPackage(file))
             {
                 foreach (var sheet in package.Workbook.Worksheets)
@@ -79,6 +66,7 @@ public List<ExcelSheetInfo> GetExcelSheetName(per_allot allot)
                         Name = sheet.Name,
                         Row = sheet.Dimension.End.Row,
                         Column = sheet.Dimension.End.Column,
+                        Version = version.ToString(),
                     });
                 }
             }
@@ -100,6 +88,7 @@ public EpSheet ReadSheet(per_allot allot, string sheetName)
                 return cacheSheet;
 
             FileInfo file = new FileInfo(allot.Path);
+
             using (ExcelPackage package = new ExcelPackage(file))
             {
                 foreach (var sheet in package.Workbook.Worksheets)

performance/Performance.Services/OnlineExcel/OnlineExcelService.Write.cs

 using Newtonsoft.Json;
-using Newtonsoft.Json.Linq;
 using OfficeOpenXml;
+using Performance.DtoModels;
 using Performance.EntityModels;
+using Performance.Infrastructure;
 using System;
 using System.Collections.Generic;
 using System.IO;
@@ -36,6 +37,9 @@ public void WriteSheet(per_allot allot, EpChanage chanage)
         {
             FileInfo file = new FileInfo(allot.Path);
 
+            if (file.LastWriteTimeUtc.ToTimeStamp().ToString() != chanage.Version)
+                throw new PerformanceException("您读取的文件已被其他人更改");
+
             using (ExcelPackage package = new ExcelPackage(file))
             {
                 foreach (var sheet in package.Workbook.Worksheets)