1.必须Dll：
ICSharpCode.SharpZipLib.dll。可从Nutget程序包中获取。
2.压缩文件
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/// <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
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/// <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
