From a7cf1913c376b53f487f0ef8dfff084c5bc010a7 Mon Sep 17 00:00:00 2001
From: 云 <2163098428@qq.com>
Date: 星期六, 17 十月 2026 11:19:12 +0800
Subject: [PATCH] feat(mes): 支持二维码导出任务的分段下载功能
---
yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/pro/qrexport/MesProQrExportRunner.java | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/pro/qrexport/MesProQrExportRunner.java b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/pro/qrexport/MesProQrExportRunner.java
index c977aca..5685462 100644
--- a/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/pro/qrexport/MesProQrExportRunner.java
+++ b/yudao-module-mes/src/main/java/cn/iocoder/yudao/module/mes/service/pro/qrexport/MesProQrExportRunner.java
@@ -22,6 +22,7 @@
import java.time.LocalDateTime;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.zip.Deflater;
import java.util.zip.ZipOutputStream;
/**
@@ -111,7 +112,9 @@
int written = 0;
int pageNo = 1;
try (OutputStream fileOut = new FileOutputStream(target);
- ZipOutputStream zip = new ZipOutputStream(new BufferedOutputStream(fileOut))) {
+ ZipOutputStream zip = new ZipOutputStream(new BufferedOutputStream(fileOut, 256 * 1024))) {
+ // 姣忓紶 PNG 宸插帇缂╋紝鍐嶅仛 ZIP deflate 浼氶噸澶嶆秷鑰� CPU锛涗繚鐣� ZIP 瀹瑰櫒鍜岄�愬紶鏂囦欢缁撴瀯銆�
+ zip.setLevel(Deflater.NO_COMPRESSION);
while (true) {
List<QrLabelInfo> page = source.fetchPage(pageNo, PAGE_SIZE);
if (page.isEmpty()) {
--
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