using System; using System.IO; using System.IO.Packaging; namespace Utility { public class ZipHelper { ///<summary> /// Add a folder along with its subfolders to a Package /// </summary> /// <param name="folderName">The folder to add</param> /// <param name="compressedFileName">The package to create</param> /// <param name="overrideExisting">Override exsisitng files</param> /// <returns></returns> public static bool PackageFolder(string folderName, string compressedFileName, bool overrideExisting) { if (folderName.EndsWith(@"\")) folderName = folderName.Remove(folderName.Length - 1); bool result = false; if (!Directory.Exists(folderName)) { return result; } if (!overrideExisting && File.Exists(compressedFileName)) { return result; } try { using (Package package = Package.Open(compressedFileName, FileMode.Create)) { var fileList = Directory.EnumerateFiles(folderName, "*", SearchOption.AllDirectories); foreach (string fileName in fileList) { //The path in the package is all of the subfolders after folderName string pathInPackage; pathInPackage = Path.GetDirectoryName(fileName).Replace(folderName, string.Empty) + "/" + Path.GetFileName(fileName); Uri partUriDocument = PackUriHelper.CreatePartUri(new Uri(pathInPackage, UriKind.Relative)); PackagePart packagePartDocument = package.CreatePart(partUriDocument, "", CompressionOption.Maximum); using (FileStream fileStream = new FileStream(fileName, FileMode.Open, FileAccess.Read)) { fileStream.CopyTo(packagePartDocument.GetStream()); } } } result = true; } catch (Exception e) { throw new Exception("Error zipping folder " + folderName, e); } return result; } } }
using ICSharpCode.SharpZipLib.Checksums; using ICSharpCode.SharpZipLib.Zip; using System; using System.IO; namespace Utility { /// <summary> /// 需要引用NuGet包:ICSharpCode.SharpZipLib /// </summary> public class ZipNewHelper { public void ZipFile(string strFile, string strZip) { if (strFile[strFile.Length - 1] != Path.DirectorySeparatorChar) strFile += Path.DirectorySeparatorChar; ZipOutputStream s = new ZipOutputStream(File.Create(strZip)); s.SetLevel(6); // 0 - store only to 9 - means best compression zip(strFile, s, strFile); s.Finish(); s.Close(); } private void zip(string strFile, ZipOutputStream s, string staticFile) { if (strFile[strFile.Length - 1] != Path.DirectorySeparatorChar) strFile += Path.DirectorySeparatorChar; Crc32 crc = new Crc32(); string[] filenames = Directory.GetFileSystemEntries(strFile); foreach (string file in filenames) { if (Directory.Exists(file)) { zip(file, s, staticFile); } else // 否则直接压缩文件 { //打开压缩文件 FileStream fs = File.OpenRead(file); byte[] buffer = new byte[fs.Length]; fs.Read(buffer, 0, buffer.Length); string tempfile = file.Substring(staticFile.LastIndexOf("\\") + 1); ZipEntry entry = new ZipEntry(tempfile); entry.DateTime = DateTime.Now; entry.Size = fs.Length; fs.Close(); crc.Reset(); crc.Update(buffer); entry.Crc = crc.Value; s.PutNextEntry(entry); s.Write(buffer, 0, buffer.Length); } } } } }