package com.estate.expert.admin.utils;
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import java.nio.charset.StandardCharsets;
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import java.security.MessageDigest;
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import java.security.NoSuchAlgorithmException;
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import java.time.LocalTime;
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/**
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* MD5加密工具类
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*/
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public class MD5Utils {
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/**
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* 对字符串进行MD5加密
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* @param input 输入字符串
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* @return MD5加密后的字符串
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*/
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public static String encrypt(String input) {
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try {
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MessageDigest md = MessageDigest.getInstance("MD5");
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byte[] hashBytes = md.digest(input.getBytes(StandardCharsets.UTF_8));
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StringBuilder hexString = new StringBuilder();
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for (byte hashByte : hashBytes) {
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String hex = Integer.toHexString(0xff & hashByte);
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if (hex.length() == 1) hexString.append('0');
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hexString.append(hex);
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}
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return hexString.toString();
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} catch (NoSuchAlgorithmException e) {
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throw new RuntimeException("MD5 algorithm not found", e);
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}
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}
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/**
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* 验证密码是否匹配
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* @param inputPassword 输入的密码
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* @param storedHash 存储的MD5哈希值
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* @return 是否匹配
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*/
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public static boolean verify(String inputPassword, String storedHash) {
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String inputHash = encrypt(inputPassword);
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return inputHash.equals(storedHash);
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}
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/**
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* 判断当前时间是否在指定时间段内（字符串参数）
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* @param startTimeStr 开始时间，格式："HH:mm" 或 "HH:mm:ss"
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* @param endTimeStr 结束时间，格式："HH:mm" 或 "HH:mm:ss"
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* @return 如果在时间段内返回true，否则返回false
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*/
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public static boolean isCurrentTimeInRange(String startTimeStr, String endTimeStr) {
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LocalTime now = LocalTime.now();
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LocalTime startTime = LocalTime.parse(fixTimeFormat(startTimeStr));
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LocalTime endTime = LocalTime.parse(fixTimeFormat(endTimeStr));
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return !now.isBefore(startTime) && now.isBefore(endTime);
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}
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private static String fixTimeFormat(String timeStr) {
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// 如果只有小时和分钟，添加秒部分
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if (timeStr.length() == 5 && timeStr.contains(":")) {
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return timeStr + ":00";
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}
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return timeStr;
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}
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public static void main(String[] args) {
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boolean currentTimeInRange = isCurrentTimeInRange("09:00", "16:50");
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System.out.println("Current time is in range: " + currentTimeInRange);
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}
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}
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