Java图形界面编程之弹出文件选择框

柔光的暖阳◎ 2022-06-02 09:49 471阅读 0赞

package main;
    
    import java.awt.FlowLayout;
    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.JTextField;
    
    public class Test extends JFrame implements ActionListener
    {
    
        private static final long serialVersionUID = 1L;
    
        JButton btn = null;
    
        JTextField textField = null;
    
        public Test()
        {
            this.setTitle("选择文件窗口");
            FlowLayout layout = new FlowLayout();// 布局
            JLabel label = new JLabel("请选择文件：");// 标签
            textField = new JTextField(30);// 文本域
            btn = new JButton("浏览");// 钮1
    
            // 设置布局
            layout.setAlignment(FlowLayout.LEFT);// 左对齐
            this.setLayout(layout);
            this.setBounds(400, 200, 600, 70);
            this.setVisible(true);
            this.setResizable(false);
            this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            btn.addActionListener(this);
            this.add(label);
            this.add(textField);
            this.add(btn);
    
        }
    
        public static void main(String[] args)
        {
            new Test();
        }
    
        @Override
        public void actionPerformed(ActionEvent e)
        {
            JFileChooser chooser = new JFileChooser();
            chooser.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
            chooser.showDialog(new JLabel(), "选择");
            File file = chooser.getSelectedFile();
            textField.setText(file.getAbsoluteFile().toString());
        }
    }