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);
}
}
}
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);
}
}
}
