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
/// </ 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服务器之家。
原文链接：http://blog.csdn.net/FeiJrry/article/details/79101368
dy("nrwz");
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