java - 无法停止在线程中启动的命令行进程(在javafx中)

Question

我已经在线程中使用 Java 进程构建器启动了命令行 Perl 进程。当我关闭 javafx 应用程序时，perl.exe 进程继续运行。

我想关闭 cmd 进程的输入流并停止该线程。

我已经尝试过以下步骤:

1. 系统退出
2. process.getInputStream.close()
3. 还尝试使用 java cmd 进程终止进程 (taskkill/f/im perl.exe)

代码:

MyRunnable 类:

    public  class MyRunnable implements Runnable 
    {
       private final int value;
       private Boolean stop = false;
       MyRunnable(int value) 
         {
            this.value = value;
         }
       @Override
       public void run() 
          {
            try
               {
                  ProcessBuilder pb2 = new ProcessBuilder(new String[] {   "cmd.exe", "/c", "perl E:\\PerlRunner\\SCRIPTS\\AIRPLANE.pl SP9830A510159222101"});
                  Process pr12=pb2.start();
                  Thread.sleep(1000);
                  BufferedReader brq = new BufferedReader(new InputStreamReader(pr12.getInputStream()));
                  while(brq.readLine()!=null && Variables.flag )
                  {
                    System.out.println(brq.readLine()+" FLAG:IN WHILE"+Variables.flag);
                  }
                  if(!Variables.flag)
                  {
                    pr12.destroy();
                    System.out.println("PROCESS DESTOYED:"+Variables.flag);
                  }

               }
               catch(IOException ee)
               {

               }
               catch(InterruptedException rr)
               {    
               }
             }
           }

主要类(class):

两个按钮:

玩:

    btn.setOnAction(new EventHandler<ActionEvent>() {

        @Override
        public void handle(ActionEvent event) {
            Variables.flag=true;
            System.out.println("Start");
            MyRunnable n1= new MyRunnable(0);
              Thread t1=new Thread(n1);
              t1.start();
        }});

停止按钮:

    btn1.setOnAction(new EventHandler<ActionEvent>() {

        @Override
        public void handle(ActionEvent event) {
            Variables.flag=false;
        }});

Variables.flag 是在另一个类中定义的静态变量。

Perl 进程:

    #!/usr/bin/perl
    $devices = $ARGV[0];
    $temp = 0;
    $LOGFILE = "E:\\PerlRunner\\times.txt";
    open(LOGFILE) or die("Could not open log file.");
    foreach $line (<LOGFILE>) {           
    if (index($line, "flmTimes") != -1)
    {
    my $result = index($line, "=");
    $temp = substr($line, $result + 1);
    }
    sleep(1);
    }
    for($i=1; $i<=$temp;$i++)
    {
    system("adb -s $devices shell am start -a
    android.settings.AIRPLANE_MODE_SETTINGS");
    sleep 5;
    system("adb -s $devices shell input tap 200 200");
    sleep 35;
    system("adb -s $devices shell input keyevent KEYCODE_HOME");
    sleep 3;
    }

    times.txt :
    testTimes=1
    flmTimes=3
    mtcTimes=1
    caseTimes=1

Answer 1

ProcessBuilder start()方法返回一个 Process 对象。

有一个 destroy()方法。只需这样称呼即可!