From c99eb98001e22f671ce514268231edcd27fc73ef Mon Sep 17 00:00:00 2001
From: 稚屿 <1491182878@qq.com>
Date: 星期三, 09 二月 2022 09:10:50 +0800
Subject: [PATCH] 代码优化
---
ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java | 15 ++++++++++++---
1 files changed, 12 insertions(+), 3 deletions(-)
diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
index 93a19e8..aa77e9b 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/poi/ExcelUtil.java
@@ -86,6 +86,9 @@
{
private static final Logger log = LoggerFactory.getLogger(ExcelUtil.class);
+ public static final String[] FORMULA_STR = { "=", "-", "+", "@" };
+
+
/**
* Excel sheet最大行数，默认65536
*/
@@ -710,7 +713,13 @@
{
if (ColumnType.STRING == attr.cellType())
{
- cell.setCellValue(StringUtils.isNull(value) ? attr.defaultValue() : value + attr.suffix());
+ String cellValue = Convert.toStr(value);
+ // 对于任何以表达式触发字符 =-+@开头的单元格，直接使用tab字符作为前缀，防止CSV注入。
+ if (StringUtils.containsAny(cellValue, FORMULA_STR))
+ {
+ cellValue = StringUtils.replaceEach(cellValue, FORMULA_STR, new String[] { "\t=", "\t-", "\t+", "\t@" });
+ }
+ cell.setCellValue(StringUtils.isNull(cellValue) ? attr.defaultValue() : cellValue + attr.suffix());
}
else if (ColumnType.NUMERIC == attr.cellType())
{
@@ -1113,7 +1122,7 @@
if (StringUtils.isNotEmpty(excel.targetAttr()))
{
String target = excel.targetAttr();
- if (target.indexOf(".") > -1)
+ if (target.contains("."))
{
String[] targets = target.split("[.]");
for (String name : targets)
@@ -1208,7 +1217,7 @@
for (Object[] os : this.fields)
{
Excel excel = (Excel) os[1];
- maxHeight = maxHeight > excel.height() ? maxHeight : excel.height();
+ maxHeight = Math.max(maxHeight, excel.height());
}
return (short) (maxHeight * 20);
}
--
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