我使用seven.zip.sharp压缩一个流。然后我想在压缩完成后,将内存流中的数据保存到文件流中。该文件是一个“.7z”文件。保存压缩内存流到文件流,endfile已损坏
问题:
输出文件已损坏,我无法手动解压缩。使用记事本+ +我也无法看到通常在7zip文件中找到的标题。
下面是代码:
//Memory stream used to store compressed stream
public System.IO.Stream TheStream = new System.IO.MemoryStream();
//Start compress stream
private void button1_Click(object sender, EventArgs e)
{
Thread newThread1 = new Thread(this.COMP_STREAM);
newThread1.Start();
}
//See size of stream on demand
private void button2_Click(object sender, EventArgs e)
{
textBox1.Clear();
textBox1.Text += "-" + TheStream.Length;
}
//To Create file
private void button3_Click(object sender, EventArgs e)
{
byte[] buffer = new byte[1024]; // Change this to whatever you need
using (System.IO.FileStream output = new FileStream(@"F:\Pasta desktop\sss\TESTEmiau.7z", FileMode.Create))
{
int readBytes = 0;
while ((readBytes = TheStream.Read(buffer, 0, buffer.Length)) > 0)
{
output.Write(buffer, 0, readBytes);
}
output.Close();
}
MessageBox.Show("DONE");
}
//To compress stream
public void COMP_STREAM()
{
SevenZip.SevenZipCompressor.SetLibraryPath(@"C:\Program Files\7-Zip\7z.dll");
var stream = System.IO.File.OpenRead(@"F:\Pasta desktop\sss\lel.exe");
SevenZip.SevenZipCompressor compressor = new SevenZip.SevenZipCompressor();
compressor.CompressionMethod = SevenZip.CompressionMethod.Lzma2;
compressor.CompressionLevel = SevenZip.CompressionLevel.Ultra;
compressor.CompressStream(stream, TheStream); //I know i can just use a FileStream here but i am doing this from testing only.
MessageBox.Show("Done");
}
请人修改问题,使它看起来更好。并添加更好的标题,如果你的愿望。谢谢。
@Marko - (如何标记的人?) (http://stackoverflow.com/questions/4214663/sevenzipsharp-compress-memory-stream) – meme
认为你必须重置内存流的位置。不是你的输出长度是0字节吗? –
我相信如此。我创建了流“输出”,所以如果在开始时应该是0字节。 – meme