package com.example.utils; import java.security.MessageDigest; public class Md5Util { public static String encrypt(String dataStr) { try { MessageDigest m = MessageDigest.getInstance("MD5"); m.update(dataStr.getBytes("UTF8")); byte[] s = m.digest(); StringBuilder result = new StringBuilder(); for (int i = 0; i < s.length; i++) { result.append(Integer.toHexString((0x000000FF & s[i]) | 0xFFFFFF00).substring(6)); } return result.toString(); } catch (Exception e) { e.printStackTrace(); } return ""; } }