Question

嗨，我是新手，我需要一些帮助。我建立了一个文件处理项目，在其中读取输入文件和项目中的一些其他现有文件，进行许多检查和解析，并生成一个csv和xlsx文件。到目前为止，我一直使用这些输入

JTextField csvpath = new JTextField();
    JTextField csvfile = new JTextField();
    JTextField xmlpath = new JTextField();
    JTextField xmlfile = new JTextField();
    JTextField excpath = new JTextField();
    JTextField excfile = new JTextField();
    Object[] message = {
        "Enter the path of the CSV file to be created:", csvpath,
        "Enter the CSV file name:", csvfile,
        "Now enter the XML path to be read:", xmlpath,
        "Also enter the XML file name:", xmlfile,  
        "Please enter the Excel file path to be created:", excpath,
        "Finally enter the Excel file name:", excfile     
    };

    int option = JOptionPane.showConfirmDialog(null, message, "Convert XML File to CSV File", JOptionPane.OK_CANCEL_OPTION);
    if (option == JOptionPane.OK_OPTION) {
        String csvPath = csvpath.getText();
        String csvFileName = csvfile.getText();
        String xmlPath = xmlpath.getText();
        String xmlFileName = xmlfile.getText();
        String excPath = excpath.getText();
        String excFileName = excfile.getText();
        String FullcsvPath = csvPath + "\\" + csvFileName + ".csv";
        String FullxmlPath = xmlPath + "\\" + xmlFileName + ".xml";
        String excelPath = excPath + "\\" + excFileName + ".xlsx";
            .
            .
        parsing/creating starts...

因为将来这个项目将被我想要创建文件选择器并以字符串形式获取文件/文件夹路径的其他人使用，以便读取输入并创建等。我已经为路径创建了一个类和公共字符串，当我调用它时，程序不会像以前那样停止，而是在框架打开时继续运行而没有获取我想要的路径。我的新课是：

public static void SelectFiles() throws ClassNotFoundException, InstantiationException, IllegalAccessException, UnsupportedLookAndFeelException {

    final JFrame window = new JFrame("Parse for manufacturers - Developed by Aris M");
    JPanel topPanel = new JPanel();
    JPanel midPanel = new JPanel();
    JPanel botPanel = new JPanel();
    final JButton openFolderChooser = new JButton("Select Folder to save csv - xlsx results");
    final JButton openFileChooser = new JButton("Select the File to be parsed");
    final JButton closeButton = new JButton("OK");
    window.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
    final JFileChooser fc = new JFileChooser();

    openFolderChooser.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {

            fc.setCurrentDirectory(new java.io.File("user.home"));
            fc.setDialogTitle("This is a JFileChooser");
            fc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
            if (fc.showOpenDialog(openFolderChooser) == JFileChooser.APPROVE_OPTION) {
                JOptionPane.showMessageDialog(null, fc.getSelectedFile().getAbsolutePath());
                System.out.println(fc.getSelectedFile().getAbsolutePath());
                csv = fc.getSelectedFile().getAbsolutePath();
                xlsx = csv;
                System.out.println(csv);                    
            }                
        }
    });
    openFileChooser.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {

            fc.setCurrentDirectory(new java.io.File("user.home"));
            fc.setDialogTitle("This is a JFileChooser");
            fc.setFileSelectionMode(JFileChooser.FILES_ONLY);
            if (fc.showOpenDialog(openFileChooser) == JFileChooser.APPROVE_OPTION) {
                JOptionPane.showMessageDialog(null, fc.getSelectedFile().getAbsolutePath());
                System.out.println(fc.getSelectedFile().getAbsolutePath());
                xml = fc.getSelectedFile().getAbsolutePath();
                System.out.println(xml);  
            }
        }
    });
    closeButton.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {   
                window.dispose();              
        }
    });
    window.add(BorderLayout.NORTH, topPanel);
    window.add(BorderLayout.CENTER, midPanel);
    window.add(BorderLayout.SOUTH, botPanel);
    topPanel.add(openFolderChooser);
    midPanel.add(openFileChooser);
    botPanel.add(closeButton);
    window.setSize(500, 150);
    window.setVisible(true);
    window.setLocationRelativeTo(null);            
}

Answer 1

Swing代码在称为事件分发线程的单独线程中运行。只要在可见框架时使您的主线程繁忙即可。将以下代码添加到SelectFiles()方法的末尾：

        while (window.isVisible()) {
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

Java Swing文件和文件夹选择

1 个答案: