Question

我正在尝试执行多个命令，而不是每次都创建一个新进程。基本上，我想启动DOS命令shell，切换到MySQL命令shell，然后执行命令。这是我如何调用该过程（也在下面）。另外，如何处理命令中的“\”？

ExecuteCommand("mysql --user=root --password=sa casemanager", 100, false);

ExecuteCommand(@"\. " + Environment.CurrentDirectory + @"\MySQL\CaseManager.sql", 100, true);

private void ExecuteCommand(string Command, int Timeout, Boolean closeProcess)
{
    ProcessStartInfo ProcessInfo;
    Process Process;

    ProcessInfo = new ProcessStartInfo("cmd.exe", "/C " + Command);
    ProcessInfo.CreateNoWindow = false;
    ProcessInfo.UseShellExecute = false;
    Process = Process.Start(ProcessInfo);
    Process.WaitForExit(Timeout);

    if (closeProcess == true) { Process.Close(); }
}

Answer 1

您可以重定向标准输入并使用StreamWriter写入它：

        Process p = new Process();
        ProcessStartInfo info = new ProcessStartInfo();
        info.FileName = "cmd.exe";
        info.RedirectStandardInput = true;
        info.UseShellExecute = false;

        p.StartInfo = info;
        p.Start();

        using (StreamWriter sw = p.StandardInput)
        {
            if (sw.BaseStream.CanWrite)
            {
                sw.WriteLine("mysql -u root -p");
                sw.WriteLine("mypassword");
                sw.WriteLine("use mydb;");
            }
        }

Answer 2

const string strCmdText = "/C command1&command2";
Process.Start("CMD.exe", strCmdText);

Answer 3

难道你不能只将所有命令写入临时文件夹中的.cmd文件，然后执行该文件吗？

Answer 4

我更喜欢使用BAT文件来做到这一点。

使用BAT文件，您可以控制更多，并且可以做任何您想做的事。

string batFileName = path + @"\" + Guid.NewGuid() + ".bat";

using (StreamWriter batFile = new StreamWriter(batFileName))
{
    batFile.WriteLine($"YOUR COMMAND");
    batFile.WriteLine($"YOUR COMMAND");
    batFile.WriteLine($"YOUR COMMAND");
}

ProcessStartInfo processStartInfo = new ProcessStartInfo("cmd.exe", "/c " + batFileName);
processStartInfo.UseShellExecute = true;
processStartInfo.CreateNoWindow = true;
processStartInfo.WindowStyle = ProcessWindowStyle.Normal;

Process p = new Process();
p.StartInfo = processStartInfo;
p.Start();
p.WaitForExit();

File.Delete(batFileName);

Answer 5

ProcessStartInfo pStartInfo = new ProcessStartInfo();
pStartInfo.FileName = "CMD";
pStartInfo.Arguments = @"/C mysql --user=root --password=sa casemanager && \. " + Environment.CurrentDirectory + @"\MySQL\CaseManager.sql"
pStartInfo.WindowStyle = ProcessWindowStyle.Hidden;
Process.Start(pStartInfo);

&&是告诉命令shell还有另一个命令要执行的方法。

Answer 6

命令行进程cmd.exe或mysql.exe通常会读取（并执行）您（用户）输入的任何内容（在键盘上）。

为了模仿，我想你想使用RedirectStandardInput属性：http://msdn.microsoft.com/en-us/library/system.diagnostics.processstartinfo.redirectstandardinput.aspx

Answer 7

作为另一个答案，在较新版本的Windows下，似乎有必要读取标准输出和/或标准错误流，否则它将在命令之间停滞。做到这一点而不是使用延迟的更整洁的方法是使用异步回调来消耗流的输出：

static void RunCommands(List<string> cmds, string workingDirectory = "")
{
    var process = new Process();
    var psi = new ProcessStartInfo();
    psi.FileName = "cmd.exe";
    psi.RedirectStandardInput = true;
    psi.RedirectStandardOutput = true;
    psi.RedirectStandardError = true;
    psi.UseShellExecute = false;
    psi.WorkingDirectory = workingDirectory;
    process.StartInfo = psi;
    process.Start();
    process.OutputDataReceived += (sender, e) => { Console.WriteLine(e.Data); };
    process.ErrorDataReceived += (sender, e) => { Console.WriteLine(e.Data); };
    process.BeginOutputReadLine();
    process.BeginErrorReadLine();
    using (StreamWriter sw = process.StandardInput)
    {
        foreach (var cmd in cmds)
        {
            sw.WriteLine (cmd);
        }
    }
    process.WaitForExit();
}

Answer 8

您也可以告诉MySQL执行给定文件中的命令，如下所示：

mysql --user=root --password=sa casemanager < CaseManager.sql

Answer 9

在发送另一个命令之前，您需要从输入中读取所有数据！

如果没有数据可用，你就不能要求阅读...有点不好意思？

我的解决方案...当要求阅读时...要求阅读一个大缓冲区...就像1 MEGA ......

你需要等待100分钟......样本代码......

Public Class Form1

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        Dim oProcess As New Process()
        Dim oStartInfo As New ProcessStartInfo("cmd.exe", "")
        oStartInfo.UseShellExecute = False
        oStartInfo.RedirectStandardOutput = True
        oStartInfo.RedirectStandardInput = True
        oStartInfo.CreateNoWindow = True
        oProcess.StartInfo = oStartInfo
        oProcess.Start()


        Dim Response As String = String.Empty
        Dim BuffSize As Integer = 1024 * 1024
        Dim x As Char() = New Char(BuffSize - 1) {}
        Dim bytesRead As Integer = 0


        oProcess.StandardInput.WriteLine("dir")
        Threading.Thread.Sleep(100)
        bytesRead = oProcess.StandardOutput.Read(x, 0, BuffSize)
        Response = String.Concat(Response, String.Join("", x).Substring(0, bytesRead))




        MsgBox(Response)
        Response = String.Empty






        oProcess.StandardInput.WriteLine("dir c:\")
        Threading.Thread.Sleep(100)
        bytesRead = 0
        bytesRead = oProcess.StandardOutput.Read(x, 0, BuffSize)
        Response = String.Concat(Response, String.Join("", x).Substring(0, bytesRead))

        MsgBox(Response)


    End Sub
End Class

使用.NET使用相同的进程执行多个命令行

9 个答案: