From b8ec4a434d82946899cd486317839eee314e8757 Mon Sep 17 00:00:00 2001
From: KilLze <kirito24177@163.com>
Date: Sat, 27 Dec 2025 19:25:03 +0800
Subject: [PATCH] =?UTF-8?q?=E5=A4=8D=E6=B4=BBMD5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 .../java/com/bao/dating/util/MD5Util.java     | 90 +++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/src/main/java/com/bao/dating/util/MD5Util.java b/src/main/java/com/bao/dating/util/MD5Util.java
index e69de29..97b78b7 100644
--- a/src/main/java/com/bao/dating/util/MD5Util.java
+++ b/src/main/java/com/bao/dating/util/MD5Util.java
@@ -0,0 +1,90 @@
+package com.bao.dating.util;
+
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+/**
+ * MD5工具类
+ * 提供MD5加密功能
+ * @author KilLze
+ */
+public class MD5Util {
+
+    /**
+     * 对字符串进行MD5加密
+     * @param input 待加密的字符串
+     * @return MD5加密后的32位小写字符串
+     */
+    public static String encrypt(String input) {
+        if (input == null || input.isEmpty()) {
+            return null;
+        }
+
+        try {
+            MessageDigest md = MessageDigest.getInstance("MD5");
+            byte[] digest = md.digest(input.getBytes());
+            return bytesToHex(digest);
+        } catch (NoSuchAlgorithmException e) {
+            throw new RuntimeException("MD5算法不可用", e);
+        }
+    }
+
+    /**
+     * 对字符串进行MD5加密（带盐值）
+     * @param input 待加密的字符串
+     * @param salt 盐值
+     * @return MD5加密后的32位小写字符串
+     */
+    public static String encryptWithSalt(String input, String salt) {
+        if (input == null || input.isEmpty()) {
+            return null;
+        }
+        if (salt == null) {
+            salt = "";
+        }
+        return encrypt(input + salt);
+    }
+
+    /**
+     * 验证字符串与MD5值是否匹配
+     * @param input 原始字符串
+     * @param md5Hash MD5哈希值
+     * @return 是否匹配
+     */
+    public static boolean verify(String input, String md5Hash) {
+        if (input == null || md5Hash == null) {
+            return false;
+        }
+        return encrypt(input).equalsIgnoreCase(md5Hash);
+    }
+
+    /**
+     * 验证字符串与MD5值是否匹配（带盐值）
+     * @param input 原始字符串
+     * @param salt 盐值
+     * @param md5Hash MD5哈希值
+     * @return 是否匹配
+     */
+    public static boolean verifyWithSalt(String input, String salt, String md5Hash) {
+        if (input == null || md5Hash == null) {
+            return false;
+        }
+        if (salt == null) {
+            salt = "";
+        }
+        return encryptWithSalt(input, salt).equalsIgnoreCase(md5Hash);
+    }
+
+    /**
+     * 将字节数组转换为十六进制字符串
+     * @param bytes 字节数组
+     * @return 十六进制字符串
+     */
+    private static String bytesToHex(byte[] bytes) {
+        StringBuilder sb = new StringBuilder();
+        for (byte b : bytes) {
+            sb.append(String.format("%02x", b));
+        }
+        return sb.toString();
+    }
+}