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CloudBuilder/CloudBuilder.Security/Policy/FileTypePolicy.cs

@@ -129,7 +129,8 @@ namespace CloudBuilder.Security.Policy
                         var upload = (ServiceSettingsPolicy.GetDmsFileBackupDirectory(service) ?? "").Replace(phy ?? "", "");
                         var filePathRel = Path.Combine(upload, createdBy, fileExtension.Replace(".", ""), "");
                         var filePath = filePathRel.Replace(Path.DirectorySeparatorChar, '/') + "/";
-                        url = service.Configuration[AppsettingsPolicy.ApplicationUrl] + webRootPath + filePath + Path.GetFileNameWithoutExtension(orderKey) + JPG + "?v=" + DateTime.Now.ToString("yyyyMMddhhmmss");
+                        // HH 才是 24 小时制：写成 hh 会让上午/下午的时间重复，缓存穿透失效
+                        url = service.Configuration[AppsettingsPolicy.ApplicationUrl] + webRootPath + filePath + Path.GetFileNameWithoutExtension(orderKey) + JPG + "?v=" + DateTime.Now.ToString("yyyyMMddHHmmss");
                     }
                     else
                     {