Java tutorial
//package com.java2s; /** * Copyright 2014 Zhenguo Jin * <p/> * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.io.UnsupportedEncodingException; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; public class Main { public static String md5(String string) { byte[] hash = null; try { hash = MessageDigest.getInstance("MD5").digest( //No i18n string.getBytes("UTF-8"));//No i18n } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } StringBuilder hex = new StringBuilder(hash.length * 2); for (byte b : hash) { if ((b & 0xFF) < 0x10) { hex.append("0");//No i18n } hex.append(Integer.toHexString(b & 0xFF)); } return hex.toString(); } }