20 线程中添加超时的方法

   isExecSuccess=false;
        exitCode=-1;
        Thread newThread=new Thread(new Runnable() {
          @Override
          public void run() {
            try {
              exitCode= process.waitFor();
              isExecSuccess=true;
            } catch (InterruptedException e) {
              e.printStackTrace();
            }
          }
        });
        newThread.start();
        long startTime=System.currentTimeMillis();
        long currentTime;
        long timeOut=0;
        while (timeOut< this.ftpCommandTimeout && !isExecSuccess){
          Thread.sleep(10);
          currentTime=System.currentTimeMillis();
          timeOut=currentTime-startTime;
        }
        if(newThread.isAlive()){
          newThread.interrupt();
        }

isExecSuccess=false;
exitCode=-1;
Thread newThread=new Thread(new Runnable() {
  @Override
public void run() {
    try {
      exitCode= process.waitFor();
      isExecSuccess=true;
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
  }
});
newThread.start();
long startTime=System.currentTimeMillis();
long currentTime;
long timeOut=0;
while (timeOut< this.ftpCommandTimeout && !isExecSuccess){
  Thread.sleep(10);
  currentTime=System.currentTimeMillis();
  timeOut=currentTime-startTime;
}
if(newThread.isAlive()){
  newThread.interrupt();
}