Base64|MD5加密工具类

骑士李四记录
Base64Util

import org.apache.commons.codec.binary.Base64;

public class Base64Util {

	public static String encode(String input) {
		if (null == input) {
			input = "";
		}
		byte[] base64 = Base64.encodeBase64(input.getBytes());
		try{
			return new String(base64,"UTF-8");
		}
		catch(Exception e) {
			e.printStackTrace();
			return null;
		}
	}
	
	public static String decode(String input) {
		if (null == input) {
			input = "";
		}
		byte[] base64 = Base64.decodeBase64(input.getBytes());
		try{
			return new String(base64,"UTF-8");
		}
		catch(Exception e) {
			e.printStackTrace();
			return null;
		}
	}
	
}

MD5Util

import org.apache.commons.lang3.StringUtils;

import java.io.ByteArrayOutputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.ObjectOutputStream;
import java.security.MessageDigest;

public class MD5Util {

	public  static String MD5(String s) {
		if (StringUtils.isEmpty(s) || StringUtils.isBlank(s))
		{
			return "";
		}

		char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8',
				'9', 'a', 'b', 'c', 'd', 'e', 'f' };
		try {
			byte[] btInput = s.getBytes("utf-8");
			MessageDigest mdInst = MessageDigest.getInstance("MD5");
			mdInst.update(btInput);
			byte[] md = mdInst.digest();
			int j = md.length;
			char str[] = new char[j * 2];
			int k = 0;
			for (int i = 0; i < j; i++) {
				byte byte0 = md[i];
				str[k++] = hexDigits[byte0 >>> 4 & 0xf];
				str[k++] = hexDigits[byte0 & 0xf];
			}
			return new String(str);
		} catch (Exception e) {
			return null;
		}
	}

	public static String getHashCode(Object object) throws IOException {
		if(object == null) return "";

		String ss = null;
		ObjectOutputStream s = null;
		ByteArrayOutputStream bo = new ByteArrayOutputStream();
		try {
			s = new ObjectOutputStream(bo);
			s.writeObject(object);
			s.flush();
		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		} finally {
			if(s != null) {
				s.close();
				s = null;
			}
		}
		ss = MD5(bo.toString());
		return ss;
	}
}