c#⽂件压缩zip或将zip⽂件解压的⽅法1.必须Dll：
ICSharpCode.SharpZipLib.dll。可从Nutget程序包中获取。
2.压缩⽂件
/// <summary>
/// 压缩⽂件成zip
压缩文件怎么解压/// </summary>
/// <param name="fileZip">压缩成zip⽂件的绝对路径</param>
/// <param name="fileName">被压缩指定⽂件的名字</param>
/// <param name="zipFilePath"></param>
/// <returns></returns>
public bool CreateZipFile(string fileZip,string fileName, string zipFilePath)
{
bool isZip = false;
if (!Directory.Exists(zipFilePath))
{
Logger.Info($"Cannot find directory {zipFilePath}", false, "FileToZip");
return isZip;
}
try
{
string[] filenames = Directory.GetFiles(zipFilePath);
using (ZipOutputStream s = new ZipOutputStream(File.Create(fileZip)))
{
s.SetLevel(9); // 压缩级别 0-9
//s.Password = "123"; //Zip压缩⽂件密码
byte[] buffer = new byte[4096]; //缓冲区⼤⼩
foreach (string file in filenames.ToList())
{
if (file== zipFilePath+fileName)//指定被压缩⽂件的绝对路径
{
ZipEntry entry = new ZipEntry(Path.GetFileName(file));
entry.DateTime = DateTime.Now;
s.PutNextEntry(entry);
using (FileStream fs = File.OpenRead(file))
{
int sourceBytes;
do
{
sourceBytes = fs.Read(buffer, 0, buffer.Length);
s.Write(buffer, 0, sourceBytes);
} while (sourceBytes > 0);
fs.Close();
fs.Dispose();
}
break;
}
}
s.Finish();
s.Close();
isZip = true;
}
}
catch (Exception ex)
{
Logger.Info($"Exception during processing {0}", false, "FileToZip");
}
return isZip;
}
3.将zip⽂件解压
/// <summary>
/// 解压⽂件
/// </summary>
/// <param name="zipFilePath">压缩⽂件的绝对路径</param>
public void UnZipFile(string zipFilePath)
{
if (!File.Exists(zipFilePath))
{
Logger.Info($"Cannot find file {zipFilePath}", false, "FileToZip");
return;
}
using (ZipInputStream s = new ZipInputStream(File.OpenRead(zipFilePath)))
{
ZipEntry theEntry;
while ((theEntry = s.GetNextEntry()) != null)
{
string directoryName = Path.GetDirectoryName(theEntry.Name);
string fileName = Path.GetFileName(theEntry.Name);
/
/ create directory
if (directoryName?.Length > 0)
{
Directory.CreateDirectory(directoryName);
}
if (!string.IsNullOrEmpty(fileName))
{
using (FileStream streamWriter = File.Create(theEntry.Name))
{
int size = 2048;
byte[] data = new byte[2048];
while (true)
{
size = s.Read(data, 0, data.Length);
if (size > 0)
{
streamWriter.Write(data, 0, size);
}
else
{
break;
}
}
}
}
}
}
}
4.其它：其中的Logger是Log4的⽤法。
以上这篇c# ⽂件压缩zip或将zip⽂件解压的⽅法就是⼩编分享给⼤家的全部内容了，希望能给⼤家⼀个参考，也希望⼤家多多⽀持。