对二进制数组进行压缩？

[ClsData]

看到的例子
传入的对象是二进制数组
压缩后返回

private static byte[] CompressByteData(Byte[] dataValue)
{
byte[] resultValue = null;
try
{
//压缩数据
Deflater compressFile = new Deflater(Deflater.BEST_COMPRESSION);
compressFile.SetInput(dataValue);
compressFile.Finish();
//内存文件流对象
MemoryStream smsStream = new MemoryStream();
byte[] bufData = new byte[1024];
while (!compressFile.IsFinished)
{
int bufLength = compressFile.Deflate(bufData);
smsStream.Write(bufData, 0, bufLength);
}
resultValue = smsStream.ToArray();
smsStream.Close();

}
catch (Exception e)
{
System.Console.WriteLine("压缩数据失败！" + e.Message);
}

//返回压缩后的数据
return resultValue;
}

问题时怎么看压缩的效果呢？
我加上这段代码后确实运行了，也返回了。
可是在压缩前byte b.lenth和压缩后的是一样的，我怎么看压缩的效果呢？

[xiaojing7]

不会弄！帮顶~

[ClsData]

上述问题已经解决
但是解压缩的时候又出现问题

private static byte[] DecompressByteData(byte[] dataValue)
{
byte[] resultValue = null;
try
{
//解压缩数据
Inflater decompressFile = new Inflater();
decompressFile.SetInput(dataValue);
//内存文件流对象
MemoryStream smsStream = new MemoryStream();
byte[] bufData = new byte[1024];
while (!decompressFile.IsFinished)
{
这里总是跳错
int bufLength = decompressFile.Inflate(bufData);
smsStream.Write(bufData, 0, bufLength);
}
resultValue = smsStream.ToArray();
smsStream.Close();
}
catch(Exception ex)
{
System.Console.WriteLine("解压缩数据失败！"+ex.Message);
}

//返回数据
return resultValue;
}

错误提示
Header checksum illegal

我想既然我压缩的时候没有任何问题
压缩后仍返回二进制数组
解压缩的时候也应该没有问题

不知道问题出在哪里呢

[humingyan]

关注！

[「已注销」]

Encoding gb2312 = Encoding.GetEncoding("gb2312");
FileStream fs = new FileStream("g:\\temp\\gb2312.txt", FileMode.Open);
StreamReader sr = new StreamReader(fs, gb2312);
MemoryStream ms = new MemoryStream();
string line = null;
byte[] buf;
while ((line = sr.ReadLine()) != null)
{
    buf = gb2312.GetBytes(line + "\r\n");
    ms.Write(buf, 0, buf.Length);
}
ms.Close();
sr.Close();
fs.Close();

int bytes;
Deflater deflater = new Deflater();
deflater.SetInput(ms.ToArray());
buf = new byte[1024];
ms = new MemoryStream();
while (!deflater.IsNeedingInput)
{
    bytes = deflater.Deflate(buf);
    if (bytes <= 0)
        break;
    ms.Write(buf, 0, bytes);
}
deflater.Finish();
while (!deflater.IsFinished)
{
    bytes = deflater.Deflate(buf);
    if (bytes <= 0)
        break;
    ms.Write(buf, 0, bytes);
}
ms.Close();

Inflater inflater = new Inflater();
inflater.SetInput(ms.ToArray());
ms = new MemoryStream();
while (!inflater.IsFinished)
{
    bytes = inflater.Inflate(buf);
    if (bytes <= 0)
        break;
    ms.Write(buf, 0, bytes);
}
ms.Close();

buf = ms.ToArray();
fs = new FileStream("g:\\temp\\gb2312.txt.bak", FileMode.Create);
fs.Write(buf, 0, buf.Length);
fs.Close();