Here you can find the source of toMD5(final String toEncrypt)
public static final String toMD5(final String toEncrypt)
//package com.java2s; import java.security.MessageDigest; public class Main { public static final String toMD5(final String toEncrypt) { try {//from ww w . ja v a2s. c o m final MessageDigest digest = MessageDigest.getInstance("md5"); digest.update(toEncrypt.getBytes()); final byte[] bytes = digest.digest(); final StringBuilder sb = new StringBuilder(); for (int i = 0; i < bytes.length; i++) { sb.append(String.format("%02X", bytes[i])); } return sb.toString().toLowerCase(); } catch (Exception exc) { return null; // Impossibru! } } }