// 扫描本机
 private void getlocal()
 {
  string ip = getip();
  string portstart = txportstart1.gettext().trim();
  string portend = txportend1.gettext().trim();
  
  if (portstart.length() == 0 || portend.length() == 0)
   return;
  
  int s = 0;
  int e = 0;
  
  try {
   s = integer.valueof(portstart);
   e = integer.valueof(portend);
  } catch (exception ex) {
   joptionpane.showmessagedialog(null, "端口输入有误");
   return;
  } 
  
  // 检查端口是否超出范围
  if (! (checkport(s) && checkport(e)))
  {
   joptionpane.showmessagedialog(null, "端口应该大于0而小于65535");
   return;
  }
  
    
  scann(ip, s, e);
  
  runthread(); // 启动线程, 监视扫描是否已完成
 }

private string getip()
 {
  try {
   inetaddress addr = inetaddress.getlocalhost();
      return addr.gethostaddress().tostring(); // ip
  }
  catch (exception e)
  {
   joptionpane.showmessagedialog(null, "获取ip出错!");
  }
  return null;
 }

// 扫描单个ip
 private void scann(string ip, int startport, int endport)
 {
  // 将所有按钮设为不可用
  setbtnedit(false);
  status.settext("请稍候...");

  string[] add = {ip, ""};
  table.addrow(add);
  exec = executors.newfixedthreadpool(10);
  for (int i = startport; i <= endport; i++)
   exec.execute(new runsocket(ip, i));
  exec.shutdown();
    
 }