Desutil.java on the network on the encryption and decryption of Chinese characters and garbled problems

The code comes from the following links
http://www.oschina.net/code/piece_full?code=18383#30455

First of all, the code is not written by me, thanks to the author, but I do an Android client, with the server Servlet interface Communication project, the protocol was DES+BASE64 encryption processing, the use of this class,
During the encounter a more tangled problem is that if the Chinese characters exist in the protocol, the server encryption, client decryption will appear garbled, client-side encryption, the server decryption is the same.
The above problem is actually very simple to solve, but the process of finding the problem is a bit of a waste of time, so record here, to tell other people are destined to use this kind of friends, can save a little precious time.

Modify the code as follows:

	/**
	 * Description encryption based on key value
	 * * 
	 @param data
	 * @param key
	 *            encryption key byte array
	 * @return
	 * Throws Exception
	 *
	/public static string encrypt (string data, String key) throws Exception {
		byte[] bt = ENC Rypt (Data.getbytes ("UTF-8"), Key.getbytes ());
		String STRs = new Base64encoder (). Encode (BT);
		return strs;
	}

	/**
	 * Description decryption based on key value
	 * * 
	 @param data
	 * @param key
	 *            encryption key byte array
	 * @return
	 * @throws IOException
	 * @throws Exception
	/public static string decrypt (string data, string key) T Hrows IOException,
			Exception {
		if (data = null) return
			null;
		Base64decoder decoder = new Base64decoder ();
		byte[] buf = decoder.decodebuffer (data);
		byte[] bt = Decrypt (Buf,key.getbytes ());
		return new String (BT, "UTF-8");
	}

Please note that the modified two places are "UTF-8".

I hope everyone has not encountered this problem.