[java]Regular Expression Testor

原创

Lyndon_梁飞 2023-01-04 14:12:08 ©著作权

文章标签 java scroll string import null 文章分类 运维

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import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Vector;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.swing.BorderFactory;
import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.JTextArea;
import javax.swing.JScrollPane;
import javax.swing.border.*;

import java.awt.Toolkit;

public class RegExpRun extends JFrame {
  private static final long serialVersionUID = 6819222900970457455L;

  private JPanel mainPanel = new JPanel();

  private JButton runButton = new JButton();
  private JLabel label = new JLabel();
  private JTextField field = new JTextField();
  private JTextArea area = new JTextArea();
  private DefaultListModel rightModel = new DefaultListModel();
  private JList rightList = new JList(rightModel);
  private JScrollPane scroll = null;
  
  public RegExpRun(String title) {
    
        Toolkit kit = Toolkit.getDefaultToolkit();   
        Dimension screenSize = kit.getScreenSize();   
        int screenHeight = screenSize.height;   
        int screenWidth = screenSize.width;   
           
        //置于屏幕中央   
        setSize(screenWidth/2, screenHeight/2);   
        setLocation(screenWidth/4, screenHeight/4); 
    setTitle("Overcome Regular Expression");
    setPreferredSize(new Dimension(600, 400));
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    initComponent();
    addData();
    pack();
    setVisible(true);
  }

  private static void createAndShowGUI() {
    new RegExpRun("GridBagLayoutFrameDemo");
  }

  private void initComponent() {
    
    label.setText("Regex");
    runButton.setText("実行");
    
    area.setBorder(BorderFactory.createTitledBorder("Source"));
    scroll = new JScrollPane(area);
    
    scroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
    scroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
    
    
    rightList.setPreferredSize(new Dimension(150, 150));
    rightList.setBorder(BorderFactory.createTitledBorder("Matches"));

//    Border redline = BorderFactory.createLineBorder(Color.RED);
    TitledBorder title = BorderFactory.createTitledBorder("ようこそ");
    title.setTitleJustification(TitledBorder.TOP);
    mainPanel.setBorder(BorderFactory.createTitledBorder(title));
    
    mainPanel.setLayout(new GridBagLayout());
    
    GridBagConstraints c = new GridBagConstraints();
    
    
    c.gridx = 0;
    c.gridy = 0;
    c.gridwidth = 1;
    c.gridheight = 1;
    c.fill = GridBagConstraints.HORIZONTAL;
    c.weightx = 0;
    c.weighty = 0;
    mainPanel.add(label, c);

    c.gridx++;
    c.weightx = 3;
    mainPanel.add(field, c);

    c.gridx++;
    c.weightx = 0;
    c.gridwidth = 1;
    c.gridheight = 1;
    mainPanel.add(runButton, c);

    c.gridx = 0;
    c.gridy = 1;
    c.weightx = 1;
    c.weighty = 1;
    c.gridwidth = 2;
    c.gridheight = 2;
    c.fill = GridBagConstraints.BOTH;
    mainPanel.add(scroll, c);
    
    c.gridx = 3;
    c.gridy = 1;
    c.gridwidth = 1;
    c.gridheight = 2;
    c.weightx = 1;
    c.weighty = 1;
    c.fill = GridBagConstraints.BOTH;
    mainPanel.add(rightList, c);

    this.getContentPane().add(mainPanel);
  }

  private void addData() {
    runButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        runRegularExpression();
      }
    });
  }
  
  private void runRegularExpression()
  {
    Vector<String> v = ReExp.getResult(field.getText(), 
        area.getText());
    ((DefaultListModel)rightList.getModel()).clear();
    for (int i = 0; i < v.size(); i++)
    {
      ((DefaultListModel)rightList.getModel()).addElement(v.elementAt(i));
    }
  }
  
  public static void main(String[] args) {
    javax.swing.SwingUtilities.invokeLater(new Runnable() {
      public void run() {
        createAndShowGUI();
      }
    });
  }
}

class ReExp 
{
  public ReExp()
  {
  }
  static public Vector<String> getResult(String reg, String text)
  {
    Pattern p = Pattern.compile(reg);
    if (p == null)
    {
      JOptionPane.showMessageDialog(null, "Error! Error!");
      return null;
    }
    Matcher m = p.matcher(text);
    Vector<String> v = new Vector<String>();
    while (m.find())
    {
      v.add(m.group());
    }
    return v;
  }
}

 
Regular Expressiton のテストツッル。