Question

我有一个C＃程序，我想运行一个外部程序，当程序运行时，它需要读取控制台输出并将其以JSON格式发送到服务器。这就是我的想法。它会起作用吗？

ProcessStartInfo psi = new ProcessStartInfo("app.exe");
psi.RedirectStandardOutput = true;
psi.WindowStyle = ProcessWindowStyle.Hidden;
psi.UseShellExecute = false;
Process app = Process.Start(psi);

while (true)// what do I loop on?
{
    string line = "{ \"message\": \"" + app.StandardOutput.ReadLine() + "\" }";

    HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url + "/results/:" + runId + "/logs");
    request.ContentType = "text/json";
    request.Method = "POST";
    using (TextWriter tw = new StreamWriter(request.GetRequestStream()))
    {
        tw.WriteLine(line);
    }
}

Answer 1

最好使用Process类的Process.OutputDataReceived事件来阻止程序的执行，并且不要在while(true)循环中运行代码！

如果主程序必须站起来等待此进程退出，可以执行

Process app = Process.Start(psi);
//  read code, subscription to event described above, 
// and processing it inside event handler

app.WaitForExit();

Answer 2

尝试这样的事情：

ProcessStartInfo psi = new ProcessStartInfo("app.exe");
psi.RedirectStandardOutput = true;
psi.WindowStyle = ProcessWindowStyle.Hidden;
psi.UseShellExecute = false;
Process app = Process.Start(psi);

StreamReader reader = app.StandardOutput;

do
{
   string line = "{ \"message\": \"" + reader.ReadLine() + "\" }";

   HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url + "/results/:" + runId + "/logs");
   request.ContentType = "text/json";
   request.Method = "POST";
   using (TextWriter tw = new StreamWriter(request.GetRequestStream()))
   {
       tw.WriteLine(line);
   }

}while(!reader.EndOfStream);

app.WaitForExit();

Answer 3

我会考虑将输出窗口的重定向更改为事件日志甚至文本文件。然后，让您的Web应用程序定期检查事件日志或文本文件，同时跟踪它停止的位置，然后仅发送新结果。

程序运行时读取控制台输出c＃

3 个答案: