.NET 使用Process调用7_zip解压文件

对于我来说，注意用词！对于我！来说！市面上最好的文件解压缩软件就是7-zip，它不仅小而且相当强大。

7Zip官网【https://www.7-zip.org/】

7-zip支持的格式有

• 解压缩: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM
• 仅解压: AR, ARJ, CAB, CHM, CPIO, CramFS, DMG, EXT, FAT, GPT, HFS, IHEX, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, QCOW2, RAR, RPM, SquashFS, UDF, UEFI, VDI, VHD, VMDK, WIM, XAR and Z.

以下是使用代码，注意注释

//要安装rx-main，否则就是用原生event处理
using System;
using System.Configuration;
using System.Diagnostics;
using System.IO;
using System.Reactive.Linq;

namespace _7ZipTest
{
    class Program
    {
        static void Main(string[] args)
        {
            //var filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "7ZipInstaller\01.rar");
            //var filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "7ZipInstaller\02.7z");
            //var filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "7ZipInstaller\03.zip");
            var filePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "7ZipInstaller\04.rar");
            try
            {
                Console.WriteLine("正在解压缩...
");
                _7ZipHelper.UnZipFile(new FileInfo(filePath));
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }            
            Console.Read();
        }
    }
    public class _7ZipHelper
    {
        /// <summary>
        /// 7Zip官网【https://www.7-zip.org/】下载的7z管理器安装程序
        /// </summary>
        private static string _7ZipExePath => ConfigurationManager.AppSettings[nameof(_7ZipExePath)];
        private static string _7UnZipPath => ConfigurationManager.AppSettings[nameof(_7UnZipPath)];

        /// <summary>
        /// 参数 【x】 从压缩文件中解压缩，包含目录结构 
        /// 解压缩c.7z到E:Program Files: 
        /// 7z x c.7z -oE:”Program Files” （-o表示输出目录，其与目录路径之间没有空格）这样解压包含下级目录名，
        /// 但不会在E:Program Files下新建一个c文件夹，
        /// 如果需要，就把输出目录设为E:Program Filesc，这样会自动创建文件夹c。
        /// </summary>
        /// <param name="fileInfo"></param>
        public static void UnZipFile(FileInfo fileInfo)
        {
            if (fileInfo.Exists)
            {
                Stopwatch watch = new Stopwatch();
                watch.Start();
                Process process = new Process();
                process.EnableRaisingEvents = true;
                // 必须禁用操作系统外壳程序  
                process.StartInfo.UseShellExecute = false;
                process.StartInfo.CreateNoWindow = true;
                process.StartInfo.RedirectStandardOutput = true;

                process.StartInfo.FileName = _7ZipExePath;
                process.StartInfo.Arguments = $@" x {fileInfo.FullName} -o{_7UnZipPath}{Path.GetFileNameWithoutExtension(fileInfo.Name)}";
                process.Start();

                // 获取命令行内容  
                process.BeginOutputReadLine();
                //响应OutputDataReceived事件
                Observable.FromEventPattern<DataReceivedEventArgs>(process, nameof(process.OutputDataReceived))
                    .Where(t => !string.IsNullOrEmpty(t.EventArgs.Data))
                    .Subscribe(e =>
                    {
                        Console.WriteLine(e.EventArgs.Data);
                    });
                //7zip退出后执行事件
                Observable.FromEventPattern<EventArgs>(process, nameof(process.Exited))
                    .Subscribe(e =>
                    {
                        watch.Stop();
                        Console.WriteLine($"
解压缩完成！耗时：{watch.ElapsedMilliseconds} (ms)");
                    });
            }
            else
            {
                Console.WriteLine($"未找到文件：【{fileInfo.FullName}】");
            }
        }
    }
}