如何在C＃中提取rar文件？
我想使用cmd shell提取.rar文件，所以我写了这段代码：
string commandLine = @"c:\progra~1\winrar\winrar ec:\download\TestedU.rar c:\download"; ProcessStartInfo PSI = new ProcessStartInfo("cmd.exe"); PSI.RedirectStandardInput = true; PSI.RedirectStandardOutput = true; PSI.RedirectStandardError = true; PSI.UseShellExecute = false; Process p = Process.Start(PSI); StreamWriter SW = p.StandardInput; StreamReader SR = p.StandardOutput; SW.WriteLine(commandLine); SW.Close(); 它第一次工作正常，第二次没有显示任何东西。
使用SevenZipSharp，因为这是更好的方式，然后使用一些.exe的。
private ReadOnlyCollection ExtractArchive(string varPathToFile, string varDestinationDirectory) { ReadOnlyCollection readOnlyArchiveFilenames; ReadOnlyCollection readOnlyVolumeFilenames; varExtractionFinished = false; varExtractionFailed = false; SevenZipExtractor.SetLibraryPath(sevenZipDll); string fileName = ""; string directory = ""; Invoke(new SetNoArgsDelegate(() => { fileName = varPathToFile; directory = varDestinationDirectory; })); using (SevenZipExtractor extr = new SevenZipExtractor(fileName)) { //string[] test = extr.ArchiveFileNames. readOnlyArchiveFilenames = extr.ArchiveFileNames; readOnlyVolumeFilenames = extr.VolumeFileNames; //foreach (string dinosaur in readOnlyDinosaurs) { //MessageBox.Show(dinosaur); // } //foreach (string dinosaur in readOnlyDinosaurs1) { // // MessageBox.Show(dinosaur); // } try { extr.Extracting += extr_Extracting; extr.FileExtractionStarted += extr_FileExtractionStarted; extr.FileExists += extr_FileExists; extr.ExtractionFinished += extr_ExtractionFinished; extr.ExtractArchive(directory); } catch (FileNotFoundException error) { if (varExtractionCancel) { LogBoxTextAdd("[EXTRACTION WAS CANCELED]"); } else { MessageBox.Show(error.ToString(), "Error with extraction"); varExtractionFailed = true; } } } varExtractionFinished = true; return readOnlyVolumeFilenames; } private void extr_FileExists(object sender, FileOverwriteEventArgs e) { listViewLogFile.Invoke(new SetOverwriteDelegate((args) => LogBoxTextAdd(String.Format("Warning: \"{0}\" already exists; overwritten\r\n", args.FileName))), e); } private void extr_FileExtractionStarted(object sender, FileInfoEventArgs e) { listViewLogFile.Invoke(new SetInfoDelegate((args) => LogBoxTextAdd(String.Format("Extracting \"{0}\"", args.FileInfo.FileName))), e); } private void extr_Extracting(object sender, ProgressEventArgs e) { progressBarCurrentExtract.Invoke(new SetProgressDelegate((args) => progressBarCurrentExtract.Increment(args.PercentDelta)), e); } private void extr_ExtractionFinished(object sender, EventArgs e) { Invoke(new SetNoArgsDelegate(() => { //pb_ExtractWork.Style = ProgressBarStyle.Blocks; progressBarCurrentExtract.Value = 0; varExtractionFinished = true; //l_ExtractProgress.Text = "Finished"; })); }
当然你需要稍微调整一下，并使用你自己的东西。 但为了举例，我添加了一些额外的方法。
您可以跳过中间步骤并使用参数直接调用winrar.exe而不是首先实例化cmd.exe
您也可以查看7-zip SDK
UnRar("C:\\Download\\sampleextractfolder\\", filepath2); private static void UnRar(string WorkingDirectory, string filepath) { // Microsoft.Win32 and System.Diagnostics namespaces are imported //Dim objRegKey As RegistryKey RegistryKey objRegKey; objRegKey = Registry.ClassesRoot.OpenSubKey("WinRAR\\Shell\\Open\\Command"); // Windows 7 Registry entry for WinRAR Open Command // Dim obj As Object = objRegKey.GetValue(""); Object obj = objRegKey.GetValue(""); //Dim objRarPath As String = obj.ToString() string objRarPath = obj.ToString(); objRarPath = objRarPath.Substring(1, objRarPath.Length - 7); objRegKey.Close(); //Dim objArguments As String string objArguments; // in the following format // " XG:\Downloads\samplefile.rar G:\Downloads\sampleextractfolder\" objArguments = " X " + " " + filepath + " " + " " + WorkingDirectory; // Dim objStartInfo As New ProcessStartInfo() ProcessStartInfo objStartInfo = new ProcessStartInfo(); // Set the UseShellExecute property of StartInfo object to FALSE //Otherwise the we can get the following error message //The Process object must have the UseShellExecute property set to false in order to use environment variables. objStartInfo.UseShellExecute = false; objStartInfo.FileName = objRarPath; objStartInfo.Arguments = objArguments; objStartInfo.WindowStyle = ProcessWindowStyle.Hidden; objStartInfo.WorkingDirectory = WorkingDirectory + "\\"; // Dim objProcess As New Process() Process objProcess = new Process(); objProcess.StartInfo = objStartInfo; objProcess.Start(); objProcess.WaitForExit(); try { FileInfo file = new FileInfo(filepath); file.Delete(); } catch (FileNotFoundException e) { throw e; } }
您忘记添加流以读取错误。 如果WINRAR运行正常，则在添加流以读取它时，您将找到错误输出。
我有答案。 试试这个：
System.Diagnostics.Process proc = new System.Diagnostics.Process(); //Put the path of installed winrar.exe proc.StartInfo.FileName = @"C:\Program Files\WinRAR\unrar.exe"; proc.StartInfo.CreateNoWindow = true; proc.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; proc.EnableRaisingEvents = true; //PWD: Password if the file has any //SRC: The path of your rar file. eg: c:\temp\abc.rar //DES: The path you want it to be extracted. eg: d:\extracted //ATTENTION: DESTINATION FOLDER MUST EXIST! proc.StartInfo.Arguments = String.Format("x -p{0} {1} {2}", PWD, SRC, DES); proc.Start();
正如Kjartan所建议的，使用7-Zip SDK可能是比产生外部可执行文件更好的选择，具体取决于您的用途：
7-Zip SDK是一个C / C ++库，但http://sevenzipsharp.codeplex.com/有一个围绕7-Zip SDK的.Net库，这使它更容易在.NET中使用。
我们也可以用这个，
string SourceFile = @"G:\SourceFolder\125.rar"; string DestinationPath = @"G:\Destination\"; System.Diagnostics.Process process = new System.Diagnostics.Process(); process.StartInfo.FileName = @"G:\Software\WinRAR.exe"; process.StartInfo.CreateNoWindow = true; process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; process.EnableRaisingEvents = false; process.StartInfo.Arguments = string.Format("x -o+ \"{0}\" \"{1}\"", SourceFile, DestinationPath); process.Start();
9答案，只有sam mousavi直接回答你的问题，但没有人告诉你什么是错的。 引用WinRAR手册：
…命令：
WinRAR x Fonts *.ttf NewFonts\
将* .ttf文件从存档字体中提取到文件夹NewFonts
您需要使用上面示例中的尾部反斜杠来表示目标文件夹。
这正是c:\download缺少的东西。 现在它尝试将存档中的文件c：\ download解压缩到当前目录。 如何在第一时间工作是一个谜。
您可以直接使用此lib： http ： //sevenziplib.codeplex.com/
SevenZipLib是一个轻量级，易于使用的7-zip库管理界面。