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 eabe6ad9..5829a1e9 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 @@ -12,6 +12,12 @@ import lombok.NoArgsConstructor; */ @NoArgsConstructor(access = AccessLevel.PRIVATE) 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) */ @@ -33,4 +39,19 @@ public class SqlUtil { public static boolean isValidOrderBySql(String value) { 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"); + } + } + } }