我們可以使用html和javascript爲獨立應用程序創建GUI嗎？

Question

我有一個Java程序，直到現在用於從命令行獲得輸入，然後相應地進行。

現在，我想爲此擁有一個基本的GUI。它將需要一些觸發事件的按鈕。我在HTML和JavaScript方面經驗豐富。是否可以用HTML（或類似的語法）編寫來生成GUI？

我不想進入Swing和awt解決方案，因爲我寧願將注意力集中在主程序而不是GUI上。

Answer 1

您可以考慮Google Web Toolkit與Window Builder，它們允許您使用Java構建富Internet接口並與現有邏輯進行交互。

如果你想要的東西快，你可以建立使用Window Builder

Answer 2

我要對此有一個基本的GUI一個Swing GUI。它將需要一些觸發事件的按鈕。

這個'基本的GUI'稍微超出了規範。添加一個輸出區域。

import java.awt.*; 
import javax.swing.*; 

class SimpleEventGUI { 

    SimpleEventGUI() { 
     JPanel gui = new JPanel(new BorderLayout()); 
     JToolBar toolBar = new JToolBar(); 
     for (int ii=1; ii<6; ii++) { 
      toolBar.add(new JButton("Event " + ii)); 
      if (ii%2==0) { 
       toolBar.addSeparator(); 
      } 
     } 
     gui.add(toolBar, BorderLayout.NORTH); 
     gui.add(new JScrollPane(new JTextArea(5,30)), BorderLayout.CENTER); 

     JOptionPane.showMessageDialog(null, gui); 
    } 

    public static void main(String[] args) { 

     EventQueue.invokeLater(new Runnable() { 
      @Override 
      public void run() { 
       new SimpleEventGUI(); 
      } 
     }); 
    } 
} 

Answer 3

這裏的另一種選擇。另請參閱How to Use HTML in Swing Components。

import java.awt.EventQueue; 
import java.awt.FlowLayout; 
import java.awt.GridLayout; 
import java.awt.event.ActionEvent; 
import java.io.File; 
import javax.swing.AbstractAction; 
import javax.swing.JButton; 
import javax.swing.JFileChooser; 
import javax.swing.JFrame; 
import javax.swing.JLabel; 
import javax.swing.JPanel; 
import javax.swing.JTextField; 

/** 
* @see http://stackoverflow.com/a/10067256/230513 
* @see http://stackoverflow.com/a/7454691/230513 
*/ 
public class Pathfinder extends JPanel { 

    private static final int TEXT_SIZE = 32; 
    private JTextField srcField = new JTextField(TEXT_SIZE); 
    private JTextField dstField = new JTextField(TEXT_SIZE); 
    private JTextField valueField1 = new JTextField(TEXT_SIZE); 
    private JTextField valueField2 = new JTextField(TEXT_SIZE); 
    private String srcPath, dstPath, value1, value2; 

    public Pathfinder() { 
     super(new GridLayout(0, 1)); 
     this.add(createPathPanel("Source Directory", srcField)); 
     this.add(createPathPanel("Target Directory", dstField)); 
     this.add(createFieldPanel("Some Value:", valueField1)); 
     this.add(createFieldPanel("Another Value:", valueField2)); 
     JPanel submitPanel = new JPanel(); 
     submitPanel.add(new JButton(new AbstractAction("Submit") { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       srcPath = srcField.getText(); 
       dstPath = dstField.getText(); 
       value1 = valueField1.getText(); 
       value2 = valueField2.getText(); 
       process(); 
      } 
     })); 
     this.add(submitPanel); 
    } 

    private void process() { 
     // see ProcessBuilder http://stackoverflow.com/questions/5740390 
     System.out.println(srcPath); 
     System.out.println(dstPath); 
     System.out.println(value1); 
     System.out.println(value2); 
    } 

    private JPanel createPathPanel(String name, final JTextField jtf) { 
     JPanel panel = new JPanel(new FlowLayout(FlowLayout.TRAILING)); 
     panel.add(new JButton(new AbstractAction(name) { 

      @Override 
      public void actionPerformed(ActionEvent e) { 
       JFileChooser jfc = new JFileChooser(
        new File(System.getProperty("user.dir"))); 
       jfc.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY); 
       int result = jfc.showOpenDialog(Pathfinder.this); 
       if (result == JFileChooser.APPROVE_OPTION) { 
        jtf.setText(jfc.getSelectedFile().getPath()); 
       } 
      } 
     })); 
     panel.add(jtf); 
     return panel; 
    } 

    private JPanel createFieldPanel(String name, JTextField jtf) { 
     JPanel panel = new JPanel(new FlowLayout(FlowLayout.TRAILING)); 
     panel.add(new JLabel(name)); 
     panel.add(jtf); 
     return panel; 
    } 

    private void display() { 
     JFrame f = new JFrame("Pathfinder"); 
     f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     f.add(this); 
     f.pack(); 
     f.setLocationRelativeTo(null); 
     f.setVisible(true); 
    } 

    public static void main(final String[] args) { 

     EventQueue.invokeLater(new Runnable() { 

      @Override 
      public void run() { 
       Pathfinder pf = new Pathfinder(); 
       if (args.length > 0) { 
        pf.srcPath = args[0]; 
        pf.dstPath = args[1]; 
        pf.process(); 
       } else { 
        pf.display(); 
       } 
      } 
     }); 
    } 
}