Java語言實現MD5加密

標籤：java   md5加密   

package com.lc.igou.util;import java.io.UnsupportedEncodingException;import java.security.MessageDigest;import java.security.NoSuchAlgorithmException;public class MD5Util {    public static String getMD5Str(String str) {        MessageDigest messageDigest = null;        try {            messageDigest = MessageDigest.getInstance("MD5");            messageDigest.reset();            messageDigest.update(str.getBytes("UTF-8"));        } catch (NoSuchAlgorithmException e) {            e.printStackTrace();        } catch (UnsupportedEncodingException e) {            e.printStackTrace();        }        byte[] byteArray = messageDigest.digest();        StringBuffer md5StrBuff = new StringBuffer();        for (int i = 0; i < byteArray.length; i++) {            if (Integer.toHexString(0xFF & byteArray[i]).length() == 1)                md5StrBuff.append("0").append(                        Integer.toHexString(0xFF & byteArray[i]));            else                md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));        }        return md5StrBuff.toString();    }}

Java語言實現MD5加密