diff --git a/oss-client/src/main/java/cn/axzo/oss/client/controller/ServerFileController.java b/oss-client/src/main/java/cn/axzo/oss/client/controller/ServerFileController.java
index 97ca2d5..10ea556 100644
--- a/oss-client/src/main/java/cn/axzo/oss/client/controller/ServerFileController.java
+++ b/oss-client/src/main/java/cn/axzo/oss/client/controller/ServerFileController.java
@@ -105,6 +105,8 @@ public class ServerFileController implements ServerFileServiceApi {
     public CommonResponse<DownloadFileFromObsResponse> downloadFileFromOBS(@Valid @RequestBody DownloadFileFromObsRequest request) {
         ServerFileDownloadDto serverFileDownloadDto = BeanConvertUtil.copyBean(request, ServerFileDownloadDto.class);
         ServerFileDownloadResponse res = fileService.getObject(serverFileDownloadDto, request.getFileDownloadType());
-        return CommonResponse.success(BeanConverter.convert(res, DownloadFileFromObsResponse.class));
+        DownloadFileFromObsResponse result = BeanConverter.convert(res, DownloadFileFromObsResponse.class);
+        result.setFileStream(res.getFileStream());
+        return CommonResponse.success(result);
     }
 }
diff --git a/oss-integration/src/main/java/cn/axzo/oss/integration/s3/impl/HuaWeiCloudServiceImpl.java b/oss-integration/src/main/java/cn/axzo/oss/integration/s3/impl/HuaWeiCloudServiceImpl.java
index 703e4fb..194e3cc 100644
--- a/oss-integration/src/main/java/cn/axzo/oss/integration/s3/impl/HuaWeiCloudServiceImpl.java
+++ b/oss-integration/src/main/java/cn/axzo/oss/integration/s3/impl/HuaWeiCloudServiceImpl.java
@@ -244,9 +244,10 @@ public class HuaWeiCloudServiceImpl implements HuaWeiCloudService {
                 request.setObjectKey(objectKey);
 
                 ObsObject object = obsClient.getObject(request);
+                log.info("下载华为云OBS文件成功");
                 return object.getObjectContent();
             } catch (ObsException obsException) {
-                log.info("下载华为云OBS文件失败，HTTP Code:{}, Error Code:{}, Request ID:{}, Host ID:{}, Error Message:{}",
+                log.warn("下载华为云OBS文件失败，HTTP Code:{}, Error Code:{}, Request ID:{}, Host ID:{}, Error Message:{}",
                         obsException.getResponseCode(),
                         obsException.getErrorCode(),
                         obsException.getErrorRequestId(),
@@ -269,10 +270,11 @@ public class HuaWeiCloudServiceImpl implements HuaWeiCloudService {
 
                 DownloadFileResult downloadFileResult = obsClient.downloadFile(request);
                 String etag = downloadFileResult.getObjectMetadata().getEtag();
+                log.info("下载华为云OBS文件成功");
             } catch (NumberFormatException e) {
                 throw new RuntimeException(e);
             } catch (ObsException obsException) {
-                log.info("下载华为云OBS文件失败，HTTP Code:{}, Error Code:{}, Request ID:{}, Host ID:{}, Error Message:{}",
+                log.warn("下载华为云OBS文件失败，HTTP Code:{}, Error Code:{}, Request ID:{}, Host ID:{}, Error Message:{}",
                         obsException.getResponseCode(),
                         obsException.getErrorCode(),
                         obsException.getErrorRequestId(),
diff --git a/oss-service/src/main/java/cn/axzo/oss/service/impl/FileServiceImpl.java b/oss-service/src/main/java/cn/axzo/oss/service/impl/FileServiceImpl.java
index 467c2fc..e219a9a 100644
--- a/oss-service/src/main/java/cn/axzo/oss/service/impl/FileServiceImpl.java
+++ b/oss-service/src/main/java/cn/axzo/oss/service/impl/FileServiceImpl.java
@@ -718,6 +718,9 @@ public class FileServiceImpl implements FileService {
         // 桶名称
         String bucketName = file.getBucketName();
         InputStream fileStream = fileManager.downloadObsFile(bucketName, objectKey, fileDownloadType);
+        if (Objects.isNull(fileStream)) {
+            log.warn("下载的文件流为空");
+        }
         return setFileDownloadResponse(file, fileStream);
     }
 }