如何在C#中将控制台应用程序连续输出到文本文件

时间:2014-03-27 15:35:32

标签: c# .net console-application tshark

我正在尝试用参数打开一个隐藏的控制台应用程序,并且基本上将它的输出连续记录到文件中,直到它被停止。

我尝试过使用内存流并将其写入文件,但它似乎确实有用了。现在我正在尝试利用DataRecievedEvent,以便我可以进一步处理输出。现在我没有得到任何输出。

以下是我打开控制台应用程序的方法:

StreamWriter writer = new StreamWriter("tsharkfieldoutput.txt", true)

private void capturePackets(int device)
        {

           string path =
                string.Format("-i " + device +
                              "  -O SNMP -T fields -e snmp.value.oid -e snmp.VarBind -e snmp.variable_bindings -e snmp.value.octets -e snmp.name -R udp src " +
                              destPort);
           string tshark = @"C:\Program Files\Wireshark\tshark.exe";
           ProcessStartInfo ps = new ProcessStartInfo();
           ps.FileName = tshark;
           ps.CreateNoWindow = true;
           ps.WindowStyle = ProcessWindowStyle.Hidden;
           ps.UseShellExecute = false;
           ps.CreateNoWindow = true;
           ps.RedirectStandardOutput = true;
           ps.Arguments = path;
           Process process = new Process();
           process.StartInfo = ps;
           process.Start();
           process.OutputDataReceived += new DataReceivedEventHandler(tshark_OutputDataReceived);
            //Not using stream reader any more.
           //StreamReader myStreamReader = process.StandardOutput;
            writer.Write("Begin tshark output- " + DateTime.Now + " - " + Environment.NewLine);

        }

        private void tshark_OutputDataReceived(object sender, DataReceivedEventArgs arg)
        {
            string tsharkline = arg.Data; //arg.Data contains the output data from the process...        

                writer.Write(tsharkline);

        }

1 个答案:

答案 0 :(得分:0)

我认为问题在于,您对函数的引用超出了函数capturePackets的范围。您将需要为进程变量提供与writer相同的作用域,或者在capturePackets函数中等待,直到进程使用WaitForExit()方法退出。虽然您创建的进程继续运行,但当对它的引用超出范围(通过流程变量)时,事件将停止处理。