n the AWT event dispatching thread.
深入浅出Java多线程（2）-Swing中的EDT（事件分发线程）(3)
时间:2010-12-09 advincenting
加上去以后怎么界面没有任何反应了呢？
代码如下：
package desktopapplication1;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.KeyEvent;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.lang.reflect.InvocationTargetException;
import java.nio.channels.FileChannel;
import java.nio.channels.FileLock;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
public class SwingApplication {
private static String labelPrefix = "Number of button clicks: ";
private int numClicks = 0;
public Component createComponents() {
final JLabel label = new JLabel(labelPrefix + "0 ");
JButton button = new JButton("I''m a Swing button!");
button.setMnemonic(KeyEvent.VK_I);
button.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
numClicks++;
label.setText(labelPrefix + numClicks);
}
});
label.setLabelFor(button);
/*
* An easy way to put space between a top-level container and its
* contents is to put the contents in a JPanel that has an "empty"
* border.
*/
JPanel pane = new JPanel();
pane.setBorder(BorderFactory.createEmptyBorder(30, //top
30, //left
10, //bottom
30) //right
);
pane.setLayout(new GridLayout(0, 1));
pane.add(button);
pane.add(label);
return pane;
}
public static void main(String[] args) throws InterruptedException {
try {
UIManager.setLookAndFeel(UIManager
.getCrossPlatformLookAndFeelClassName());
} catch (Exception e) {
}
//Create the top-level container and add contents to it.
JFrame frame = new JFrame("SwingApplication");
SwingApplication app = new SwingApplication();
Component contents = app.createComponents();
frame.getContentPane().add(contents, BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
try {
SwingUtilities.invokeAndWait(new getFileLock());
} catch (InvocationTargetException ex) {
ex.printStackTrace();
}
}
}
class getFileLock implements Runnable{
public void run() {
try {
RandomAccessFile r = null;
try {
r = new RandomAccessFile("d://testData.java", "rw");
} catch (FileNotFoundExc
|
