From c99eb98001e22f671ce514268231edcd27fc73ef Mon Sep 17 00:00:00 2001
From: 稚屿 <1491182878@qq.com>
Date: Wed, 09 Feb 2022 09:10:50 +0800
Subject: [PATCH] 代码优化
---
ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java | 26 ++++++++++++++++++++++++--
1 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java b/ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java
index 39e88ef..03832f9 100644
--- a/ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java
+++ b/ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java
@@ -1,6 +1,6 @@
package com.ruoyi.common.utils.sql;
-import com.ruoyi.common.exception.BaseException;
+import com.ruoyi.common.exception.UtilException;
import com.ruoyi.common.utils.StringUtils;
/**
@@ -10,6 +10,11 @@
*/
public class SqlUtil
{
+ /**
+ * 定义常用的 sql关键字
+ */
+ public static String SQL_REGEX = "select |insert |delete |update |drop |count |exec |chr |mid |master |truncate |char |and |declare ";
+
/**
* 仅支持字母、数字、下划线、空格、逗号、小数点（支持多个字段排序）
*/
@@ -22,7 +27,7 @@
{
if (StringUtils.isNotEmpty(value) && !isValidOrderBySql(value))
{
- throw new BaseException("参数不符合规范，不能进行查询");
+ throw new UtilException("参数不符合规范，不能进行查询");
}
return value;
}
@@ -34,4 +39,21 @@
{
return value.matches(SQL_PATTERN);
}
+
+ /**
+ * SQL关键字检查
+ */
+ public static void filterKeyword(String value)
+ {
+ if (StringUtils.isEmpty(value))
+ {
+ return;
+ }
+ String[] sqlKeywords = StringUtils.split(SQL_REGEX, "\\|");
+ for (String sqlKeyword : sqlKeywords) {
+ if (StringUtils.indexOfIgnoreCase(value, sqlKeyword) > -1) {
+ throw new UtilException("参数存在SQL注入风险");
+ }
+ }
+ }
}
--
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