From 7fa043793eb966e2f4d54baa7106187c7084b7d3 Mon Sep 17 00:00:00 2001
From: hang <872297557@qq.com>
Date: Sun, 4 Jan 2026 11:36:50 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E4=B8=8B=E8=BD=BD=E5=BD=B1?=
 =?UTF-8?q?=E5=83=8F=E5=A4=84=E7=90=86sr=20ot=20=20=E5=A4=9A=E5=B8=A7?=
 =?UTF-8?q?=E5=A4=84=E7=90=86=E5=A4=B1=E8=B4=A5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../Controllers/UploadDownLoadController.cs   | 39 +++++++++++++++----
 1 file changed, 32 insertions(+), 7 deletions(-)

diff --git a/IRaCIS.Core.API/Controllers/UploadDownLoadController.cs b/IRaCIS.Core.API/Controllers/UploadDownLoadController.cs
index 4533649ff..b53f43913 100644
--- a/IRaCIS.Core.API/Controllers/UploadDownLoadController.cs
+++ b/IRaCIS.Core.API/Controllers/UploadDownLoadController.cs
@@ -1057,7 +1057,7 @@ namespace IRaCIS.Core.API.Controllers
                             Log.Logger.Warning($"处理文件{study.StudyCode}DIR失败: {ex.Message}");
                             continue;
                         }
-                      
+
 
                         // ---------- IMAGE FILES ----------
                         foreach (var series in study.SeriesList)
@@ -1085,7 +1085,7 @@ namespace IRaCIS.Core.API.Controllers
                                     {
                                         #region 将多帧合并为一帧
 
-                
+
 
                                         try
                                         {
@@ -1125,7 +1125,20 @@ namespace IRaCIS.Core.API.Controllers
                                         catch (Exception ex)
                                         {
 
-                                            Log.Logger.Warning($"处理多帧合并{instance.Path}失败: {ex.Message}");
+                                            Log.Logger.Warning($"处理多帧合并{instance.Path}失败,以原始文件下载: {ex.Message}");
+
+                                            try
+                                            {
+                                                await using var source2 = await _oSSService.GetStreamFromOSSAsync(instance.Path);
+
+                                                await source2.CopyToAsync(entryStream, 32 * 1024, abortToken);
+                                            }
+                                            catch (Exception ex2)
+                                            {
+
+                                                Log.Logger.Warning($"原始文件下载{instance.Path}失败: {ex2.Message}");
+                                            }
+                                           
                                         }
 
                                         #endregion
@@ -1176,7 +1189,7 @@ namespace IRaCIS.Core.API.Controllers
                 // ✅ HttpConnection.ContentLengthReadStream 已知问题
                 Log.Logger.Warning($"Stream aborted: {ex.Message}");
             }
-            catch (Exception ex) 
+            catch (Exception ex)
             {
                 // ✅ HttpConnection.ContentLengthReadStream 已知问题
                 Log.Logger.Warning($"异常: {ex.Message}");
@@ -1771,7 +1784,7 @@ namespace IRaCIS.Core.API.Controllers
                                     // 获取 Pixel Data 标签
                                     var pixelData = DicomPixelData.Create(dicomFile.Dataset);
 
-         
+
                                     //获取像素是否为封装形式
                                     var syntax = dicomFile.Dataset.InternalTransferSyntax;
 
@@ -1804,7 +1817,7 @@ namespace IRaCIS.Core.API.Controllers
 
                                         Log.Logger.Warning($"处理多帧合并{instance.Path}失败: {ex.Message}");
                                     }
-                               
+
                                     #endregion
 
                                     await dicomFile.SaveAsync(entryStream);
@@ -1857,7 +1870,7 @@ namespace IRaCIS.Core.API.Controllers
         public async Task<IActionResult> VisitImageDownload([FromServices] IPatientService _patientService, [FromServices] IOSSService _oSSService,
       [FromServices] IHubContext<DownloadHub, IDownloadClient> _downLoadHub,
       [FromServices] IRepository<Trial> _trialRepository,
-    [FromQuery]  VisitImageDownloadCommand inCommand)
+    [FromQuery] VisitImageDownloadCommand inCommand)
         {
             var rusult = await _patientService.GetDownloadSubjectVisitStudyInfo(inCommand);
 
@@ -2030,6 +2043,18 @@ namespace IRaCIS.Core.API.Controllers
                                         {
 
                                             Log.Logger.Warning($"处理多帧合并{instance.Path}失败: {ex.Message}");
+
+                                            try
+                                            {
+                                                await using var source2 = await _oSSService.GetStreamFromOSSAsync(instance.Path);
+
+                                                await source2.CopyToAsync(entryStream, 32 * 1024, abortToken);
+                                            }
+                                            catch (Exception ex2)
+                                            {
+
+                                                Log.Logger.Warning($"原始文件下载{instance.Path}失败: {ex2.Message}");
+                                            }
                                         }
 
                                         #endregion