MD5.java

package com.fang.bbks.common.utils;

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

/**
 * @Intro descrption here
 * @author Lee [shouli1990@gmail.com]
 * @Version V0.0.1
 * @Date 2013-12-2
 * @since 下午4:54:41
 */
public class MD5 {
	public static final String encode(String s) throws NoSuchAlgorithmException {
		char hexdigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
				'a', 'b', 'c', 'd', 'e', 'f' };
		byte[] strTemp = s.getBytes();
		MessageDigest mdTemp = MessageDigest.getInstance("MD5");
		mdTemp.update(strTemp);
		byte[] md = mdTemp.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);
	}
}