尝试在我的asp.net控制台应用程序中运行多行cmd命令引发了以下错误＆＃34; StandardIn尚未被重定向＆＃34;

Question

我的asp.net控制台应用程序中有以下代码： -

var processInfo = new ProcessStartInfo("cmd.exe");
processInfo.CreateNoWindow = true;
processInfo.UseShellExecute = false;
processInfo.RedirectStandardError = true;
processInfo.RedirectStandardOutput = true;

var process = Process.Start(processInfo);
process.StandardInput.WriteLine("nslookup");
process.StandardInput.WriteLine("set type=mx");
process.StandardInput.WriteLine(domainname);

process.OutputDataReceived += (object sender, DataReceivedEventArgs e) =>
Console.WriteLine("output>>" + e.Data);
process.BeginOutputReadLine();

process.ErrorDataReceived += (object sender, DataReceivedEventArgs e) =>
Console.WriteLine("error>>" + e.Data);
process.BeginErrorReadLine();

process.WaitForExit();

Console.WriteLine("ExitCode: {0}", process.ExitCode);
process.Close();

我试图运行以下命令并获得结果： -

nslookup
set type=mx
domainname

但是当代码到达此行process.StandardInput.WriteLine("nslookup");时，我得到了此异常StandardIn has not been redirected。

Answer 1

错误非常具有描述性：StandardIn has not been redirected

您已将行中的stderr和stdout重定向：

processInfo.RedirectStandardError = true;
processInfo.RedirectStandardOutput = true;

但是，由于错误显示您未重定向StandardIn

您可以通过以下方式重定向stdin来实现：

processInfo.RedirectStandardInput = true;