From fd3a699ad87f7c043658a18d9ffd298ae0b96a69 Mon Sep 17 00:00:00 2001
From: RuoYi <yzz_ivy@163.com>
Date: 星期二, 21 十二月 2021 13:32:28 +0800
Subject: [PATCH] SQL工具类新增检查关键字方法
---
ruoyi-common/src/main/java/com/ruoyi/common/utils/sql/SqlUtil.java | 24 ++++++++++++++++++++++++
1 files changed, 24 insertions(+), 0 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 ceff841..71a7ae1 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
@@ -11,6 +11,11 @@
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）
*/
public static String SQL_PATTERN = "[a-zA-Z0-9_\\ \\,\\.]+";
@@ -34,4 +39,23 @@
{
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 (int i = 0; i < sqlKeywords.length; i++)
+ {
+ if (StringUtils.indexOfIgnoreCase(value, sqlKeywords[i]) > -1)
+ {
+ throw new UtilException("参数存在SQL注入风险");
+ }
+ }
+ }
}
--
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