md5加密技术

package com.eduask.md5; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException;

import sun.misc.BASE64Decoder; import sun.misc.BASE64Encoder; //新建一个md5测试类; public class TestMd5 {

private static String TestMd5(String pwd) throws NoSuchAlgorithmException { //实体对象; MessageDigest md5=MessageDigest.getInstance("md5");

byte[] buff=md5.digest(pwd.getBytes()); BASE64Encoder base=new BASE64Encoder(); pwd=base.encode(buff); return pwd; } public static void main(String[] args) throws NoSuchAlgorithmException { String pwd="123"; pwd =TestMd5(pwd); System.out.println(pwd); } }