SqlUtil.java 929 字节
Newer Older
RuoYi's avatar
RuoYi committed
1 2
package com.ruoyi.common.utils.sql;

3
import com.ruoyi.common.exception.BaseException;
RuoYi's avatar
RuoYi committed
4 5 6 7 8 9 10 11 12 13
import com.ruoyi.common.utils.StringUtils;

/**
 * sql操作工具类
 * 
 * @author ruoyi
 */
public class SqlUtil
{
    /**
14
     * 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)
RuoYi's avatar
RuoYi committed
15
     */
16
    public static String SQL_PATTERN = "[a-zA-Z0-9_\\ \\,\\.]+";
RuoYi's avatar
RuoYi committed
17 18 19 20 21 22 23 24

    /**
     * 检查字符,防止注入绕过
     */
    public static String escapeOrderBySql(String value)
    {
        if (StringUtils.isNotEmpty(value) && !isValidOrderBySql(value))
        {
25
            throw new BaseException("参数不符合规范,不能进行查询");
RuoYi's avatar
RuoYi committed
26 27 28 29 30 31 32 33 34 35 36 37
        }
        return value;
    }

    /**
     * 验证 order by 语法是否符合规范
     */
    public static boolean isValidOrderBySql(String value)
    {
        return value.matches(SQL_PATTERN);
    }
}