Java从入门到精通 - Swing高级JFileChooser

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;

import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JSplitPane;
import javax.swing.JToolBar;
public class JFileChooserTest  extends JFrame{

 public JFileChooserTest()
 {
  super();
  setTitle("JFileChooserTest");
  setBounds(100,100,350,150);
  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  final JButton button = new JButton();
  final JLabel label = new JLabel();
  button.addActionListener(new ActionListener(){  //监听事件
   public void actionPerformed(ActionEvent e){
    JFileChooser fileChooser = new JFileChooser();  //对话框
    int i = fileChooser.showOpenDialog(getContentPane());  //opendialog
    if(i==JFileChooser.APPROVE_OPTION)  //判断是否为打开的按钮
    {
     File selectedFile = fileChooser.getSelectedFile();  //取得选中的文件
     label.setText(selectedFile.getPath());   //取得路径
    }
   }
  });
  getContentPane().add(button,BorderLayout.NORTH);  //布局处理
  getContentPane().add(label,BorderLayout.CENTER);
  button.setText("上传");
 }
 /**
  * @param args
  */
 public static void main(String[] args) {
  // TODO Auto-generated method stub
  JFileChooserTest jFileChooserTest = new JFileChooserTest();
  jFileChooserTest.setVisible(true);
 }

}