md5util.java

演示网站Portal单点登陆SSO的简单使用

import java.security.MessageDigest;

import sun.misc.BASE64Encoder;

public class MD5Util {
    public final static String MD5(String s) {
        char hexDigits[] = { '0', '1', '2', '3', '4',
                             '5', '6', '7', '8', '9',
                             'A', 'B', 'C', 'D', 'E', 'F' };
        try {
            byte[] btInput = s.getBytes();
            MessageDigest mdInst = MessageDigest.getInstance("MD5");
            mdInst.update(btInput);
            byte[] md = mdInst.digest();
            int j = md.length;
            char str[] = new char[j * 2];
            int k = 0;
            for (int i = 0; i < j; i++) {
                byte byte0 = md[i];
                str[k++] = hexDigits[byte0 >>> 4 & 0xf];
                str[k++] = hexDigits[byte0 & 0xf];
            }
            return new String(str);
        }
        catch (Exception e) {
            // e.printStackTrace();
            return null;
        }
    }

    public static void main(String[] args) {
        System.out.println(MD5Util.MD5("AusITcim#1485"));
        String msg = MD5Util.MD5("AusITcim#1485");
        BASE64Encoder encoder = new BASE64Encoder();
		byte[] e = msg.getBytes();
		String pwd2= encoder.encode(e);
		System.out.println(pwd2);
        //System.out.println("EF277661A4C821C9007ACB52E1D883EC");
    }

}