这是run()方法:
public void run() {
ServerSocket listener = null;
if (running == true) {
btnRun.setEnabled(false);
try {
if (!(portField.getText().equals(""))) {
String p = portField.getText();
if (p.matches("[0-9]*")) {
listener = new ServerSocket(Integer.parseInt(p));
while (true) {
Socket socket = listener.accept();
try {
PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
out.println("Hi there, human.");
} finally {
socket.close();
}
}
} else {
JOptionPane.showMessageDialog(null, "Only numbers are allowed.");
btnRun.setEnabled(true);
running =
}
} else {
JOptionPane.showMessageDialog(null, "Please input a port.");
btnRun.setEnabled(true);
running = false;
}
} catch (NumberFormatException | HeadlessException | IOException e) {
e.printStackTrace();
}
} else {
btnRun.setEnabled(true);
if (listener != null) {
try {
listener.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
这是按钮:
btnRun = new JButton("Run Server");
btnRun.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
if (running == false) {
running = true;
run();
}
}
});
单击该按钮时,软件会冻结(它会在while(true)循环内无限地运行)。据我所知,我需要在一个单独的“线程”中运行此循环,并在另一个中运行GUi。但问题是:我认为我通过实现Runnable接口正是这样做的。
如何在线程中隔离(true),以便我可以使用GUI的其余部分,包括"JFrame.EXIT_ON_CLOSE"*
答案 0 :(得分:10)
只是实现Runnable是不够的,你需要显式启动一个线程:
Thread myThread = new Thread(myRunnable);
myThread.start();