Beispiel #1
0
  public ShowComp() throws InterruptedException, IOException {
    super("CONNECTED COMPUTERS");
    int x = 0, d = 20;
    mb = new JMenuBar();
    File = new JMenu("File");
    mb.add(File);
    exit = new JMenuItem("Exit");
    exit.addActionListener(this);
    File.add(exit);
    ta = new JTextArea();
    ta.setBounds(20, 30, 315, 470);
    ta.setEditable(false);
    add(ta);

    setJMenuBar(mb);

    sel = new JLabel("The connected computers are..");
    sel.setBounds(15, 5, 300, 30);
    add(sel);
    b1 = new JButton("<< BACK");
    b1.setBounds(140, 510, 100, 30);
    b1.setToolTipText("Back to main page");
    b1.addActionListener(this);
    add(b1);
    setLayout(null);
    while (x < 360) {
      x = x + d;
      setBounds(675, 50, x, 600);
      this.show();
    }
    // setVisible(true);
    String s = "192.168.0.", temp = null;
    Printer printer = new Printer();
    printer.start();
    Connector connector = new Connector(printer);
    connector.start();

    LinkedList targets = new LinkedList();
    for (int i = 1; i <= 255; i++) {
      temp = s + Integer.toString(i);
      Target t = new Target(temp);
      targets.add(t);
      connector.add(t);
    }
    Thread.sleep(2000);
    connector.shutdown();
    connector.join();

    for (Iterator i = targets.iterator(); i.hasNext(); ) {
      Target t = (Target) i.next();
      if (!t.shown) t.show();
    }

    setDefaultCloseOperation(DISPOSE_ON_CLOSE);
  }
  public void processSelectedKeys() throws IOException {
    // 处理连接就绪事件
    for (Iterator it = selector.selectedKeys().iterator(); it.hasNext(); ) {
      SelectionKey selectionKey = (SelectionKey) it.next();
      it.remove();

      Target target = (Target) selectionKey.attachment();
      SocketChannel socketChannel = (SocketChannel) selectionKey.channel();

      try {
        if (socketChannel.finishConnect()) {
          selectionKey.cancel();
          target.connectFinish = System.currentTimeMillis();
          socketChannel.close();
          addFinishedTarget(target);
        }
      } catch (IOException x) {
        socketChannel.close();
        target.failure = x;
        addFinishedTarget(target);
      }
    }
  }
Beispiel #3
0
    void processSelectedKeys() throws IOException {
      for (Iterator i = sel.selectedKeys().iterator(); i.hasNext(); ) {

        SelectionKey sk = (SelectionKey) i.next();
        i.remove();

        Target t = (Target) sk.attachment();
        SocketChannel sc = (SocketChannel) sk.channel();

        try {
          if (sc.finishConnect()) {
            sk.cancel();
            t.connectFinish = System.currentTimeMillis();
            sc.close();
            printer.add(t);
          }
        } catch (IOException x) {
          sc.close();
          t.failure = x;
          printer.add(t);
        }
      }
    }