MD5加密算法

package com.julongtech.config.util;

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

import org.apache.commons.codec.binary.Hex;
import org.apache.log4j.Logger;

/**
 * MD5加密算法
 * @author julong
 * @QQ 330359149 
 * @Email [e-mail]
 * @date 2016-8-24下午02:58:49
 */
public class MD5Util {

private static final Logger logger = Logger.getLogger(MD5Util.class);

private static MessageDigest messageDigest = null;

/**
 * MD5加密为byte
 * @param data
 * @return byte[]
 * @author julong
 * @QQ 330359149 
 * @Email [e-mail]
 * @date 2016-8-24下午03:03:48
 */
public static byte[] encodeMode(String data){
try {
messageDigest = MessageDigest.getInstance("MD5");
byte[] bytes = messageDigest.digest(data.getBytes());
return bytes;
} catch (Exception e) {
// TODO Auto-generated catch block
logger.error("【MD5Util】加密发生异常",e);
}
return null;
}

/**
 * 进行16进制加密转为String
 * @param bytes md5byte
 * @return String
 * @author julong
 * @QQ 330359149 
 * @Email [e-mail]
 * @date 2016-8-24下午03:05:49
 */
public static String encodeHex(byte[] bytes){
char[] value = Hex.encodeHex(bytes);
return new String(value);
}


/**
 * MD5加密
 * @param data 需要加密的数据
 * @return String
 * @author julong
 * @QQ 330359149 
 * @Email [e-mail]
 * @date 2016-8-24下午03:08:56
 */
public static String encode(String data){
byte[] bytes = encodeMode(data);
return encodeHex(bytes);
}

/**
 * @param args
 * @author julong
 * @QQ 330359149 
 * @Email [e-mail]
 * @date 2016-8-24下午02:53:24
 */
public static void main(String[] args) {
// TODO Auto-generated method stub
String str = "julong";
System.out.println(encode(str));

}

}