压缩文件类的ZipFile

小鱼儿 2021-11-26 09:56 273阅读 0赞

using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Text;  
using System.IO.Packaging;  
using System.IO;  
using Utilities.IO.ExtensionMethods;  
using Utilities.DataTypes.ExtensionMethods;  
  
  
namespace Utilities.FileFormats.Zip  
\{  
    /// <summary>  
    /// Helper class for dealing with zip files  
    /// </summary>  
    public class ZipFile : IDisposable  
    \{  
        \#region Constructor  
  
        /// <summary>  
        /// Constructor  
        /// </summary>  
        /// <param name="FilePath">Path to the zip file</param>  
        /// <param name="Overwrite">Should the zip file be overwritten?</param>  
        public ZipFile(string FilePath, bool Overwrite = true)  
        \{  
            FilePath.ThrowIfNullOrEmpty("FilePath");  
            ZipFileStream = new FileStream(FilePath, Overwrite ? FileMode.Create : FileMode.OpenOrCreate);  
        \}  
  
        \#endregion  
  
        \#region Properties  
  
        /// <summary>  
        /// Zip file's FileStream  
        /// </summary>  
        protected virtual FileStream ZipFileStream \{ get; set; \}  
  
        \#endregion  
  
        \#region Functions  
  
        /// <summary>  
        /// Adds a folder to the zip file  
        /// </summary>  
        /// <param name="Folder">Folder to add</param>  
        public virtual void AddFolder(string Folder)  
        \{  
            Folder.ThrowIfNullOrEmpty("Folder");  
            Folder = new DirectoryInfo(Folder).FullName;  
            if (Folder.EndsWith(@"\\"))  
                Folder = Folder.Remove(Folder.Length - 1);  
            using (Package Package = ZipPackage.Open(ZipFileStream, FileMode.OpenOrCreate))  
            \{  
                new DirectoryInfo(Folder)  
                    .GetFiles()  
                    .ForEach(x => AddFile(x.FullName.Replace(Folder, ""), x, Package));  
            \}  
        \}  
  
        /// <summary>  
        /// Adds a file to the zip file  
        /// </summary>  
        /// <param name="File">File to add</param>  
        public virtual void AddFile(string File)  
        \{  
            File.ThrowIfNullOrEmpty("File");  
            FileInfo TempFileInfo = new FileInfo(File);  
            if (!TempFileInfo.Exists)  
                throw new ArgumentException("File");  
            using (Package Package = ZipPackage.Open(ZipFileStream, FileMode.OpenOrCreate))  
            \{  
                AddFile(TempFileInfo.Name, TempFileInfo, Package);  
            \}  
        \}  
  
        /// <summary>  
        /// Uncompresses the zip file to the specified folder  
        /// </summary>  
        /// <param name="Folder">Folder to uncompress the file in</param>  
        public virtual void UncompressFile(string Folder)  
        \{  
            Folder.ThrowIfNullOrEmpty("Folder");  
            new DirectoryInfo(Folder).Create();  
            Folder = new DirectoryInfo(Folder).FullName;  
            using (Package Package = ZipPackage.Open(ZipFileStream, FileMode.Open, FileAccess.Read))  
            \{  
                foreach (PackageRelationship Relationship in Package.GetRelationshipsByType("http://schemas.microsoft.com/opc/2006/sample/document"))  
                \{  
                    Uri UriTarget = PackUriHelper.ResolvePartUri(new Uri("/", UriKind.Relative), Relationship.TargetUri);  
                    PackagePart Document = Package.GetPart(UriTarget);  
                    Extract(Document, Folder);  
                \}  
                if (File.Exists(Folder + @"\\\[Content\_Types\].xml"))  
                    File.Delete(Folder + @"\\\[Content\_Types\].xml");  
            \}  
        \}  
  
        /// <summary>  
        /// Extracts an individual file  
        /// </summary>  
        /// <param name="Document">Document to extract</param>  
        /// <param name="Folder">Folder to extract it into</param>  
        protected virtual void Extract(PackagePart Document, string Folder)  
        \{  
            Folder.ThrowIfNullOrEmpty("Folder");  
            string Location = Folder + System.Web.HttpUtility.UrlDecode(Document.Uri.ToString()).Replace('\\\\', '/');  
            new DirectoryInfo(Path.GetDirectoryName(Location)).Create();  
            byte\[\] Data = new byte\[1024\];  
            using (FileStream FileStream = new FileStream(Location, FileMode.Create))  
            \{  
                Stream DocumentStream = Document.GetStream();  
                while (true)  
                \{  
                    int Size = DocumentStream.Read(Data, 0, 1024);  
                    FileStream.Write(Data, 0, Size);  
                    if (Size != 1024)  
                        break;  
                \}  
                FileStream.Close();  
            \}  
        \}  
  
        /// <summary>  
        /// Adds a file to the zip file  
        /// </summary>  
        /// <param name="File">File to add</param>  
        /// <param name="FileInfo">File information</param>  
        /// <param name="Package">Package to add the file to</param>  
        protected virtual void AddFile(string File, FileInfo FileInfo, Package Package)  
        \{  
            File.ThrowIfNullOrEmpty("File");  
            if (!FileInfo.Exists)  
                throw new ArgumentException("FileInfo");  
            Uri UriPath = PackUriHelper.CreatePartUri(new Uri(File, UriKind.Relative));  
            PackagePart PackagePart = Package.CreatePart(UriPath, System.Net.Mime.MediaTypeNames.Text.Xml, CompressionOption.Maximum);  
            byte\[\] Data = FileInfo.ReadBinary();  
            PackagePart.GetStream().Write(Data, 0, Data.Count());  
            Package.CreateRelationship(PackagePart.Uri, TargetMode.Internal, "http://schemas.microsoft.com/opc/2006/sample/document");  
        \}  
  
        \#endregion  
  
        \#region IDisposable Members  
  
        public void Dispose()  
        \{  
            if (ZipFileStream != null)  
            \{  
                ZipFileStream.Close();  
                ZipFileStream.Dispose();  
                ZipFileStream = null;  
            \}  
        \}  
  
        \#endregion  
    \}  
\}

转载于:https://www.cnblogs.com/kevinGao/archive/2012/01/06/2323351.html