content: package com.us.example.util;
  
  /**
   * Created by yangyibo on 17/2/7.
   */
  import java.security.MessageDigest;
  /**
   * MD5加密工具
   *
   */
  public class MD5Util {
  
      private static final String SALT = "tamboo";
  
      public static String encode(String password) {
          password = password + SALT;
          MessageDigest md5 = null;
          try {
              md5 = MessageDigest.getInstance("MD5");
          } catch (Exception e) {
              throw new RuntimeException(e);
          }
          char[] charArray = password.toCharArray();
          byte[] byteArray = new byte[charArray.length];
  
          for (int i = 0; i < charArray.length; i++)
              byteArray[i] = (byte) charArray[i];
          byte[] md5Bytes = md5.digest(byteArray);
          StringBuffer hexValue = new StringBuffer();
          for (int i = 0; i < md5Bytes.length; i++) {
              int val = ((int) md5Bytes[i]) & 0xff;
              if (val < 16) {
                  hexValue.append("0");
              }
  
              hexValue.append(Integer.toHexString(val));
          }
          return hexValue.toString();
      }
  
      public static void main(String[] args) {
          System.out.println(MD5Util.encode("abel"));
  
  
      }
  }