在SSH.NET中执行长时间命令并在TextBox中连续显示结果

有没有办法执行Linux命令并在PuTTY等Windows应用程序的文本框中显示结果。

例如，我正在尝试执行以下命令

wget http://centos-webpanel.com/cwp-latest sh cwp-latest 

使用以下代码

 SshClient sshclient = new SshClient(IPtxtBox.Text, UserNameTxt.Text, PasswordTxt.Text); sshclient.Connect(); ShellStream stream = sshclient.CreateShellStream("customCommand", 80, 24, 800, 600, 1024); resultTxt.Text = SSHCommand.SendCommand(stream, "wget http://centos-webpanel.com/cwp-latest && sh cwp-latest"); 

 private static void WriteStream(string cmd, StreamWriter writer, ShellStream stream) { writer.WriteLine(cmd); while (stream.Length == 0) Thread.Sleep(500); } private static string ReadStream(StreamReader reader) { StringBuilder result = new StringBuilder(); string line; while ((line = reader.ReadLine()) != null) result.AppendLine(line); return result.ToString(); } private static string SendCommand(ShellStream stream, string customCMD) { StringBuilder strAnswer = new StringBuilder(); var reader = new StreamReader(stream); var writer = new StreamWriter(stream); writer.AutoFlush = true; WriteStream(customCMD, writer, stream); strAnswer.AppendLine(ReadStream(reader)); string answer = strAnswer.ToString(); return answer.Trim(); } 

此命令需要执行时间，结果文本框中不显示任何结果。

Answer 1

首先，除非有充分的理由，否则不要使用“shell”通道来自动执行命令。 使用“exec”通道（SSH.NET中的CreateCommand或RunCommand ）。

要将输出提供给TextBox ，只需继续在后台线程上读取流：

 private void button1_Click(object sender, EventArgs e) { new Task(() => RunCommand()).Start(); } private void RunCommand() { var host = "hostname"; var username = "username"; var password = "password"; using (var client = new SshClient(host, username, password)) { client.Connect(); // If the command2 depend on an environment modified by command1, // execute them like this. // If not, use separate CreateCommand calls. var cmd = client.CreateCommand("command1; command2"); var result = cmd.BeginExecute(); using (var reader = new StreamReader(cmd.OutputStream, Encoding.UTF8, true, 1024, true)) { while (!result.IsCompleted || !reader.EndOfStream) { string line = reader.ReadLine(); if (line != null) { textBox1.Invoke( (MethodInvoker)(() => textBox1.AppendText(line + Environment.NewLine))); } } } cmd.EndExecute(result); } } 

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对于稍微不同的方法，请参阅类似的WPF问题： SSH.NET实时命令输出监视 。