C#中deflate解压不能准确进行

2013-03-21

C#中deflate解压不能正确进行！以下函数为C#中的delate解压部分，输入为经base编码的deflate压缩数据，调试到

C#中deflate解压不能正确进行！
以下函数为C#中的delate解压部分，输入为经base编码的deflate压缩数据，调试到base64解码后，写入文件流还是正确的，但解压流不正确，请高手指点。
public string DeflateDecompress(string strSource)
{
     byte[] buffer = Convert.FromBase64String(strSource);
     using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
     {
           ms.Write(buffer, 0, buffer.Length);
          ms.Position = 0;
          using (System.IO.Compression.DeflateStream stream = new System.IO.Compression.DeflateStream(ms，System.IO.Compression.CompressionMode.Decompress))
         {
               stream.Flush();
               int nSize = 16 * 1024 + 256;    //假设字符串不会超过16K
               byte[] decompressBuffer = new byte[nSize];
               int nSizeIncept = stream.Read(decompressBuffer, 0, nSize);
               stream.Close();
               return System.Text.Encoding.UTF8.GetString(decompressBuffer, 0, nSizeIncept);   //转换为普通的字符串
         }
     }
}
[解决办法]
System.Text.Encoding.UTF8.GetString(decompressBuffer, 0, nSizeIncept);
确定是使用的UTF8？可能是编码的问题。
[解决办法]

引用:

引用:msdn 上有详细的例子
http://msdn.microsoft.com/zh-cn/library/system.io.compression.deflatestream(v=vs.80).aspx

就是照上面的例子写的啊！

static void Main(string[] args)
        {
            string str = "Hello World!";
            Console.WriteLine("压缩前：" + str);
            str = DeflateCompress(str);
            Console.WriteLine("压缩前：" + str);
            str = DeflateDecompress(str);
            Console.WriteLine("解压后：" + str);
            Console.ReadLine();
        }

        public static string DeflateCompress(string strSource)
        {
            byte[] buffer = Encoding.UTF8.GetBytes(strSource);

            using (MemoryStream ms = new MemoryStream())
            {
                using (DeflateStream compressedzipStream = new DeflateStream(ms, CompressionMode.Compress, true))
                {
                    compressedzipStream.Write(buffer, 0, buffer.Length);

                }
                return Convert.ToBase64String(ms.GetBuffer());
            }
        }
        public static string DeflateDecompress(string strSource)
        {
            byte[] buffer = Convert.FromBase64String(strSource);
            using (System.IO.MemoryStream ms = new System.IO.MemoryStream())
            {
                ms.Write(buffer, 0, buffer.Length);
                ms.Position = 0;
                using (System.IO.Compression.DeflateStream stream = new System.IO.Compression.DeflateStream(ms, System.IO.Compression.CompressionMode.Decompress))
                {
                    stream.Flush();
                    int nSize = 16 * 1024 + 256;    //假设字符串不会超过16K
                    byte[] decompressBuffer = new byte[nSize];
                    int nSizeIncept = stream.Read(decompressBuffer, 0, nSize);
                    stream.Close();
                    return System.Text.Encoding.UTF8.GetString(decompressBuffer, 0, nSizeIncept);   //转换为普通的字符串
                }
            }
        }

热点排行