如何在C＃中提取rar文件？

Question

我想提取.rar程序使用CMD外壳文件，所以我写了这个代码：

string commandLine = @"c:\progra~1\winrar\winrar e c:\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(); 

的第一次工作得很好，第二次是没有任何显示。

Answer 1

您可能会跳过中间步骤，并且调用带有参数的WinRAR.exe直的而不是第一instanciating CMD.EXE

你也不妨来看看在7-zip SDK

Answer 2

你忘了补充流用于阅读错误。如果WINRAR运行正常，当您添加流来读取它时，您会发现错误输出。

Answer 3

您可以使用此LIB直接：http://sevenziplib.codeplex.com/

最佳

Answer 4

使用SevenZipSharp，因为它是一个好一点的处事然后用一些.exe文件的工作方式。

private ReadOnlyCollection<string> ExtractArchive(string varPathToFile, string varDestinationDirectory) { 
     ReadOnlyCollection<string> readOnlyArchiveFilenames; 
     ReadOnlyCollection<string> 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，你需要调整一些东西，并使用一些你自己的东西。但为了举例，我添加了一些其他方法。

Answer 5

由于Kjartan建议，使用7-Zip的SDK可能比产卵取决于您使用外部可执行一个更好的选择：

7-Zip的SDK是一个C/C++库，但http://sevenzipsharp.codeplex.com/有一个.net库它围绕着7-Zip SDK，这使得它更容易在.NET中使用。

Answer 6

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 
    // " X G:\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; 
    } 



} 

Answer 7

我做了一个纯粹的C＃unrar实现。同样的工作在Silverlight（可能WP & 7）

http://nunrar.codeplex.com/

Answer 8

我得到了答案。 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. e.g: c:\temp\abc.rar 
//DES: The path you want it to be extracted. e.g: d:\extracted 

//ATTENTION: DESTINATION FOLDER MUST EXIST! 

proc.StartInfo.Arguments = String.Format("x -p{0} {1} {2}", PWD, SRC, DES); 


proc.Start(); 

Answer 9

9回答，只SAM穆萨维直接回答你的问题，但没有人的告诉你，什么是错的。从WinRAR的手动举例：

...命令：WinRAR x Fonts *.ttf NewFonts\
将提取档案的字体* .TTF文件的文件夹NewFonts
您需要在上面的例子中使用尾部的反斜杠作为表示目标文件夹。

而这正是c:\download所缺少的。现在它试图将文件内的文件 c：\ download提取到当前目录。第一次如何工作是一个谜。

你喜欢这个答案吗？给我一些急需的声望！我几乎可以投票！

Answer 10

我们也可以利用这一点，

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();