From 5b98ae94350c48c3e70689d879911735ad27d5e4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E7=A7=A6=E9=B8=BF=E5=B1=95?= <18031053041@163.com>
Date: Fri, 24 Jul 2026 19:42:40 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AF=BC=E5=85=A5=E7=89=A9=E6=96=99BUG?=
 =?UTF-8?q?=E4=BF=AE=E6=94=B9?=
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---
 .../MaterialBaseInfoApplicationService.java                 | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mhd_wms/src/main/java/com/mhd/wms/application/service/materialBaseInfo/MaterialBaseInfoApplicationService.java b/mhd_wms/src/main/java/com/mhd/wms/application/service/materialBaseInfo/MaterialBaseInfoApplicationService.java
index 7dc41f623..b78ffebcd 100644
--- a/mhd_wms/src/main/java/com/mhd/wms/application/service/materialBaseInfo/MaterialBaseInfoApplicationService.java
+++ b/mhd_wms/src/main/java/com/mhd/wms/application/service/materialBaseInfo/MaterialBaseInfoApplicationService.java
@@ -457,7 +457,7 @@ public class MaterialBaseInfoApplicationService {
             throw new ServiceException("请上传xls或xlsx格式文件");
         }
 
-        // 保存文件到临时目录
+        // 流式写入临时文件，避免大文件 getBytes() 导致内存溢出和接口超时
         String tmpDir = System.getProperty("java.io.tmpdir") + File.separator + "material_import";
         File dir = new File(tmpDir);
         if (!dir.exists()) {
@@ -465,8 +465,8 @@ public class MaterialBaseInfoApplicationService {
         }
         String tmpFileName = System.currentTimeMillis() + "_" + fileName;
         File tmpFile = new File(dir, tmpFileName);
-        try (FileOutputStream fos = new FileOutputStream(tmpFile)) {
-            fos.write(file.getBytes());
+        try {
+            file.transferTo(tmpFile);
         } catch (Exception e) {
             throw new ServiceException("文件保存失败：" + e.getMessage());
         }