1 package cn.fraudmetrix.octopus.horai.biz.utils;
2
3 import java.security.MessageDigest;
4 import java.security.NoSuchAlgorithmException;
5
6 public class Md5Util {
7 //静态方法，便于作为工具类
8 public static String getMd5(String plainText) throws NoSuchAlgorithmException {
9 MessageDigest md = MessageDigest.getInstance("MD5");
10 md.update(plainText.getBytes());
11 byte b[] = md.digest();
12 int i;
13 StringBuffer buf = new StringBuffer("");
14 for (int offset = 0; offset < b.length; offset++) {
15 i = b[offset];
16 if (i < 0)
17 i += 256;
18 if (i < 16)
19 buf.append("0");
20 buf.append(Integer.toHexString(i));
21 }
22 //32位加密
23 return buf.toString();
24 // 16位的加密
25 //return buf.toString().substring(8, 24);
26 }
27 }
