我想用cmd shell解压.rar文件，所以我写了这段代码。
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();
第一次工作正常，第二次什么都不显示。
使用 七匹狼 因为这是一种比使用一些.exe更好的工作方式。
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。但为了举例说明，我已经添加了一些额外的方法。
你可以跳过中间的步骤，直接调用带有参数的winrar.exe，而不是先实例化cmd.exe。
你也可以看看 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
// " 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;
}
}
你忘了添加一个读取错误的流。 如果WINRAR表现正常的话，当你添加流读取的时候，你会发现你的错误输出。
我知道答案了，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 = System.Diagnostics.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();
正如Kjartan所建议的，使用7 -Zip SDK可能是一个更好的选择，而不是根据你的使用情况来生成一个外部可执行文件。
7 -Zip SDK是一个CC++库，但是... http:/sevenzipsharp.codeplex.com 围绕7-Zip SDK有一个.Net的库，这使得它在.NET中使用起来更加方便。
我们也可以使用这个。
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个回答，只有sam mousavi在直接回答你的问题，但是没有人告诉你是什么问题。引自WinRAR手册。
...命令：
WinRAR x Fonts *.ttf NewFonts\将提取*.ttf文件 从存档Fonts到文件夹NewFonts 你需要使用尾部的反斜杠，就像上面的例子一样，表示目标文件夹。
而这正是在上面缺少的东西 c:\download. 现在，它试图提取文件 c:下载 内的存档到当前目录。第一次怎么能成功，这是个谜。
你可以直接使用这个lib。http: /sevenziplib.codeplex.com.
SevenZipLib是一个轻量级的、易于使用的7-zip库管理接口。