我想在C#中压缩文件和目录。我在互联网上找到了一些解决方案,但它们非常复杂,我无法在我的项目中运行它们。是否有人可以提供一个清晰有效的解决方案?
我想在C#中压缩文件和目录。我在互联网上找到了一些解决方案,但它们非常复杂,我无法在我的项目中运行它们。是否有人可以提供一个清晰有效的解决方案?
您可以在System.IO.Compression
命名空间中使用GZipStream
.NET 2.0。
public static void CompressFile(string path)
{
FileStream sourceFile = File.OpenRead(path);
FileStream destinationFile = File.Create(path + ".gz");
byte[] buffer = new byte[sourceFile.Length];
sourceFile.Read(buffer, 0, buffer.Length);
using (GZipStream output = new GZipStream(destinationFile,
CompressionMode.Compress))
{
Console.WriteLine("Compressing {0} to {1}.", sourceFile.Name,
destinationFile.Name, false);
output.Write(buffer, 0, buffer.Length);
}
// Close the files.
sourceFile.Close();
destinationFile.Close();
}
.NET 4
public static void Compress(FileInfo fi)
{
// Get the stream of the source file.
using (FileStream inFile = fi.OpenRead())
{
// Prevent compressing hidden and
// already compressed files.
if ((File.GetAttributes(fi.FullName)
& FileAttributes.Hidden)
!= FileAttributes.Hidden & fi.Extension != ".gz")
{
// Create the compressed file.
using (FileStream outFile =
File.Create(fi.FullName + ".gz"))
{
using (GZipStream Compress =
new GZipStream(outFile,
CompressionMode.Compress))
{
// Copy the source file into
// the compression stream.
inFile.CopyTo(Compress);
Console.WriteLine("Compressed {0} from {1} to {2} bytes.",
fi.Name, fi.Length.ToString(), outFile.Length.ToString());
}
}
}
}
}
我添加了这个答案是因为我发现一个比现有的任何答案都更简单的方法:
代码:
using (ZipFile zip = new ZipFile())
{
zip.AddFile("C:\test\test.txt");
zip.AddFile("C:\test\test2.txt");
zip.Save("C:\output.zip");
}
如果你不想在zip文件中镜像原始文件夹结构,则可以查看AddFile()和AddFolder()等函数的覆盖选项。
对于.NET Framework 4.5,这是我找到的最清晰的例子:
using System;
using System.IO;
using System.IO.Compression;
namespace ConsoleApplication
{
class Program
{
static void Main(string[] args)
{
string startPath = @"c:\example\start";
string zipPath = @"c:\example\result.zip";
string extractPath = @"c:\example\extract";
ZipFile.CreateFromDirectory(startPath, zipPath);
ZipFile.ExtractToDirectory(zipPath, extractPath);
}
}
}
在System.IO.Packaging
中有一个内置的类叫做ZipPackage
:
http://msdn.microsoft.com/en-us/library/system.io.packaging.zippackage(v=vs.100).aspx
只需使用以下代码压缩文件。
public void Compressfile()
{
string fileName = "Text.txt";
string sourcePath = @"C:\SMSDBBACKUP";
DirectoryInfo di = new DirectoryInfo(sourcePath);
foreach (FileInfo fi in di.GetFiles())
{
//for specific file
if (fi.ToString() == fileName)
{
Compress(fi);
}
}
}
public static void Compress(FileInfo fi)
{
// Get the stream of the source file.
using (FileStream inFile = fi.OpenRead())
{
// Prevent compressing hidden and
// already compressed files.
if ((File.GetAttributes(fi.FullName)
& FileAttributes.Hidden)
!= FileAttributes.Hidden & fi.Extension != ".gz")
{
// Create the compressed file.
using (FileStream outFile =
File.Create(fi.FullName + ".gz"))
{
using (GZipStream Compress =
new GZipStream(outFile,
CompressionMode.Compress))
{
// Copy the source file into
// the compression stream.
inFile.CopyTo(Compress);
Console.WriteLine("Compressed {0} from {1} to {2} bytes.",
fi.Name, fi.Length.ToString(), outFile.Length.ToString());
}
}
}
}
}
}
using (var zip = new Ionic.Zip.ZipFile())
{
zip.AddDirectory("DirectoryOnDisk", "rootInZipFile");
zip.Save("MyFile.zip");
}
祝您继续成功...
public static void CompressFile(string path)
{
FileStream sourceFile = File.OpenRead(path);
FileStream destinationFile = File.Create(path + ".gz");
byte[] buffer = new byte[sourceFile.Length];
sourceFile.Read(buffer, 0, buffer.Length);
using (GZipStream output = new GZipStream(destinationFile,
CompressionMode.Compress))
{
Console.WriteLine("Compressing {0} to {1}.", sourceFile.Name,
destinationFile.Name, false);
output.Write(buffer, 0, buffer.Length);
}
// Close the files.
sourceFile.Close();
destinationFile.Close();
}