From 0012f6f06d88d078ea19dc27e3fdfb8639dfb01c Mon Sep 17 00:00:00 2001
From: moon69 <1016830869@qq.com>
Date: Fri, 29 Dec 2023 20:09:02 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E5=A4=8D=E5=AF=BC=E5=87=BA=20excel=20?=
 =?UTF-8?q?=E6=97=B6=EF=BC=8CLong=20=E7=B1=BB=E5=9E=8B=E4=B8=A2=E5=A4=B1?=
 =?UTF-8?q?=E7=B2=BE=E5=BA=A6=E7=9A=84=E9=97=AE=E9=A2=98?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../cn/iocoder/yudao/framework/excel/core/util/ExcelUtils.java  | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/yudao-framework/yudao-spring-boot-starter-excel/src/main/java/cn/iocoder/yudao/framework/excel/core/util/ExcelUtils.java b/yudao-framework/yudao-spring-boot-starter-excel/src/main/java/cn/iocoder/yudao/framework/excel/core/util/ExcelUtils.java
index 67d558f6b..71c916dae 100644
--- a/yudao-framework/yudao-spring-boot-starter-excel/src/main/java/cn/iocoder/yudao/framework/excel/core/util/ExcelUtils.java
+++ b/yudao-framework/yudao-spring-boot-starter-excel/src/main/java/cn/iocoder/yudao/framework/excel/core/util/ExcelUtils.java
@@ -1,6 +1,7 @@
 package cn.iocoder.yudao.framework.excel.core.util;
 
 import com.alibaba.excel.EasyExcel;
+import com.alibaba.excel.converters.longconverter.LongStringConverter;
 import com.alibaba.excel.write.style.column.LongestMatchColumnWidthStyleStrategy;
 import org.springframework.web.multipart.MultipartFile;
 
@@ -33,6 +34,7 @@ public class ExcelUtils {
         EasyExcel.write(response.getOutputStream(), head)
                 .autoCloseStream(false) // 不要自动关闭，交给 Servlet 自己处理
                 .registerWriteHandler(new LongestMatchColumnWidthStyleStrategy()) // 基于 column 长度，自动适配。最大 255 宽度
+                .registerConverter(new LongStringConverter()) // 避免 Long 类型丢失精度
                 .sheet(sheetName).doWrite(data);
         // 设置 header 和 contentType。写在最后的原因是，避免报错时，响应 contentType 已经被修改了
         response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(filename, "UTF-8"));