diff --git a/detection/src/main/java/com/njcn/gather/plan/service/AsyncPlanHandler.java b/detection/src/main/java/com/njcn/gather/plan/service/AsyncPlanHandler.java
index bbe2c232..e4eac3d3 100644
--- a/detection/src/main/java/com/njcn/gather/plan/service/AsyncPlanHandler.java
+++ b/detection/src/main/java/com/njcn/gather/plan/service/AsyncPlanHandler.java
@@ -250,12 +250,13 @@ public class AsyncPlanHandler {
 
             // 将上传的zip文件保存到临时目录
             File zipFile = FileUtil.file(tempDir, file.getOriginalFilename());
-            // 修复文件上传临时路径问题
             try {
-                file.transferTo(zipFile);
+                // 直接获取文件字节，避免依赖Tomcat临时文件
+                byte[] fileBytes = file.getBytes();
+                FileUtil.writeBytes(fileBytes, zipFile);
             } catch (IOException e) {
-                // 如果直接transferTo失败，则先转为字节再写入文件
-                FileUtil.writeBytes(file.getBytes(), zipFile);
+                log.error("保存上传文件失败", e);
+                throw e;
             }
             progress.addAndGet(1);
             sseClient.sendMessage(uid, planId, HttpResultUtil.assembleResult(CommonResponseEnum.SUCCESS.getCode(), progress, "开始解压文件，请耐心等待..."));