|
@@ -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");
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
}
|