JAVASE中JFileChooser的使用小结 打开文件并显示

// 给按钮添加1个事件
        bu.addActionListener(new ActionListener() {

            public void actionPerformed(ActionEvent e) {
                String msg;
                fDialog = new JFileChooser("./");//设默认打开路径为当前路径
                FileNameExtensionFilter filter = new FileNameExtensionFilter(
                 "JPG & GIF Images", "jpg", "gif");
                fDialog.setFileFilter(filter);
                int result=fDialog.showOpenDialog(null);
                if(result==JFileChooser.APPROVE_OPTION){
                    // path = fDialog.getSelectedFile().getAbsolutePath().replace('\', '/');
                    // System.out.println(path);
                    // Image image2 = new ImageIcon("path").getImage();
                    // 获取打开的图片
                     File file = fDialog.getSelectedFile();
                     ImageIcon img =new ImageIcon(file.getPath());
                     jl2.setIcon(img);            //jl2是一个JLabel
                     msg="成功打开图像";
                }else {
                     msg="取消打开图像";
                }
                 JOptionPane.showMessageDialog(frame,msg); //提示框
            }
        });