Java-MD5加密

package com.johesoft.fws.utils;

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

public class HexUtil {

/** MD5 ����� */
private static MessageDigest digest = null;

static {
try {
digest = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException nsae) {
nsae.printStackTrace();
}
}

/**
 * �����ĵ�Stringת����MD5���ܵ�����.
 * 
 * @param  data ����
 * @return ����
 */
public static final String hash(String data) {

digest.update(data.getBytes());
return toHex(digest.digest());
}