From e0a5e704b0ab25390c431fb54158ec102dfb3f67 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: Fri, 11 Nov 2022 11:36:02 +0800
Subject: [PATCH] 优化导出对象的子列表为空会出现[]问题

---
 ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
index 36b21a9..2d64b22 100644
--- a/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
+++ b/ruoyi-common/ruoyi-common-core/src/main/java/com/ruoyi/common/core/utils/poi/ExcelUtil.java
@@ -784,6 +784,10 @@
             {
                 cellValue = RegExUtils.replaceFirst(cellValue, FORMULA_REGEX_STR, "\t$0");
             }
+            if (value instanceof Collection && StringUtils.equals("[]", cellValue))
+            {
+                cellValue = StringUtils.EMPTY;
+            }
             cell.setCellValue(StringUtils.isNull(cellValue) ? attr.defaultValue() : cellValue + attr.suffix());
         }
         else if (ColumnType.NUMERIC == attr.cellType())

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