diff --git a/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CoursePortalApi.java b/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CoursePortalApi.java
index 80a520c6..f6f605d1 100644
--- a/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CoursePortalApi.java
+++ b/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CoursePortalApi.java
@@ -428,18 +428,17 @@ public class CoursePortalApi extends ApiBaseController{
 				}
 
 				zos.closeEntry();
-
-				StringBuilder contentDispositionValue = new StringBuilder();
-				contentDispositionValue.append("attachment; filename=")
-						.append(encodedFilename)
-						.append(";")
-						.append("filename*=")
-						.append("utf-8''")
-						.append(encodedFilename);
-				// 设置响应类型和Content-Disposition头
-				response.setContentType("application/zip");
-				response.setHeader("Content-Disposition", contentDispositionValue.toString());
 			}
+			StringBuilder contentDispositionValue = new StringBuilder();
+			contentDispositionValue.append("attachment; filename=")
+					.append(encodedFilename)
+					.append(";")
+					.append("filename*=")
+					.append("utf-8''")
+					.append(encodedFilename);
+			// 设置响应类型和Content-Disposition头
+			response.setContentType("application/zip");
+			response.setHeader("Content-Disposition", contentDispositionValue.toString());
 		}
 	}
 	@GetMapping("/detail-study")