文件选择的一个小例子：
package v2.chapter06.TableCellRenderTest.my;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.filechooser.FileFilter;
public class Test {
/**
* @param args
*/
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
JFrame frame = new TestFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
});
}
}
class TestFrame extends JFrame {
public TestFrame() {
setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
setTitle("testFrame");
JMenu file = new JMenu("file");
JMenuItem openItem = new JMenuItem("open");
JMenuItem exitItem = new JMenuItem("exit");
exitItem.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
openItem.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
openFile();
}
});
file.add(openItem);
file.add(exitItem);
JMenuBar bar = new JMenuBar();
bar.add(file);
setJMenuBar(bar);
}
public void openFile() {
fileChoose = new JFileChooser(new File("./"));
fileChoose.setFileFilter(new FileFilter() {
@Override
public String getDescription() {
return "XML file";
}
public boolean accept(File f) {
return f.isDirectory()
|| f.getName().toLowerCase().endsWith(".xml");
}
});
int r = fileChoose.showOpenDialog(this);
if (r != JFileChooser.APPROVE_OPTION)
return;
final File file = fileChoose.getSelectedFile();
System.out.println(file.getName());
}
private JFileChooser fileChoose;
private static final int DEFAULT_WIDTH = 600;
private static final int DEFAULT_HEIGHT = 400;
}