请帮忙把.net语句转JAVA的写法

Question

    public static string EncryptDES(string encryptString)
    {
        try
        {
            byte[] bytes = Encoding.UTF8.GetBytes("YYhelper");
            byte[] rgbIV = Encoding.Unicode.GetBytes("YYhelper");
            byte[] buffer = Encoding.UTF8.GetBytes(encryptString);
            DESCryptoServiceProvider provider = new DESCryptoServiceProvider();
            MemoryStream stream = new MemoryStream();
            CryptoStream stream2 = new CryptoStream(stream, provider.CreateEncryptor(bytes, rgbIV), CryptoStreamMode.Write);
            stream2.Write(buffer, 0, buffer.Length);
            stream2.FlushFinalBlock();
            return Convert.ToBase64String(stream.ToArray());
        }
        catch
        {
            return encryptString;
        }
    }

Answer 1

http://www.cnblogs.com/langtianya/p/3715975.html