专门用来查找Swing组件中addListener的方法（工具类）

package demo01;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.lang.reflect.Method;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;

public class ShowAddListeners extends JFrame {

    /**
     *
     */
    private static final long serialVersionUID = 560378219087793087L;

    /**
     * @param args
     */
   
    private JTextField name=new JTextField(25);
    private JTextArea results=new JTextArea(40,65);
    private static Pattern addListner=
            Pattern.compile("(add\\w+?Listener\\(.*?\\))");
    private static Pattern qualifier=Pattern.compile("\\w+\\.");
    class NameL implements ActionListener{

        @Override
        public void actionPerformed(ActionEvent arg0) {
            // TODO Auto-generated method stub
            String nm=name.getText().trim();
            if(nm.length()==0){
                results.setText("No Match");
                return;
            }
            Class<?>kind;
            try {
                kind=Class.forName("javax.swing."+nm);
            } catch (ClassNotFoundException e) {
                results.setText("No Match");
                return;
            }
            Method[] methods=kind.getMethods();
            results.setText("");
            for(Method m:methods){
                Matcher matcher=addListner.matcher(m.toString());
                if(matcher.find()){
                    results.append(qualifier.matcher(
                            matcher.group(1)).replaceAll("")+"\n");
                }
            }
        }
    }
    public ShowAddListeners(){
        NameL nameListener=new NameL();
        name.addActionListener(nameListener);
        JPanel top=new JPanel();
        top.add(new JLabel("Swing class name( press enter ):"));
        top.add(name);
        add(BorderLayout.NORTH,top);
        add(new JScrollPane(results));
        name.setText("JTextArea");
        nameListener.actionPerformed(new ActionEvent("", 0, ""));
    }
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        SwingConsole.run(new ShowAddListeners(),500,400);
    }

}

 

 

附带： 用于显示的工具类

 

package demo01;

import javax.swing.JFrame;
import javax.swing.SwingUtilities;

public class SwingConsole {

    public static void run(final JFrame f, final int width,final int height){
        SwingUtilities.invokeLater(new Runnable() {
           
            @Override
            public void run() {
                f.setTitle(f.getClass().getSimpleName());
                f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                f.setSize(width,height);
                f.setVisible(true);
            }
        });
    }
}