MD5.java

package com.ycsoft.commons.helper;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class MD5 {
	private static String byte2hex(byte[] b) {
		if (b == null)
			return "";
		String hs = "";
		String stmp = "";
		for (byte element : b) {
			stmp = Integer.toHexString(element & 0XFF);
			if (stmp.length() == 1) {
				hs = hs + "0" + stmp;
			} else {
				hs = hs + stmp;
			}
		}
		return hs.toUpperCase();
	}

	public static String EncodePassword(String input) {
		if (input == null)
			return null;
		byte[] digesta = null;
		try {
			MessageDigest alga = MessageDigest.getInstance("MD5");
			alga.update(input.getBytes());
			digesta = alga.digest();
		} catch (NoSuchAlgorithmException e) {
			e.printStackTrace();
		}
		return byte2hex(digesta);
	}


}