极客时间架构师训练营 - week11 - 作业 1

        <!-- https://mvnrepository.com/artifact/cn.hutool/hutool-all -->
        <dependency>
            <groupId>cn.hutool</groupId>
            <artifactId>hutool-all</artifactId>
            <version>5.4.0</version>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 -->
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.11</version>
        </dependency>


package com.example.demo;
import cn.hutool.crypto.SecureUtil;
import org.apache.commons.lang3.StringUtils;
/**
 * @author Jiang Jining
 * @date 2020/8/26 22:55
 */
public class PasswordUtil {
    private static final String SALT = "salt";
    /**
     * Check password of user.
     *
     * @param userId   userId
     * @param password password
     * @param input    input
     * @return boolean
     */
    public static boolean checkPassword(String userId, String password, String input) {
        if (StringUtils.isBlank(userId) || StringUtils.isBlank(input)) {
            return false;
        }
        return StringUtils.equals(generateMd5ForDatabase(userId, input), password);
    }
    public static String generateMd5ForDatabase(String userId, String originalPassword) {
        return SecureUtil.md5(userId + SALT + "@" + originalPassword);
    }
}