大神们 能不能帮我添加 log4j 日志代码 谢谢

Question

//问题:获取t=t1时 和t！=t1时的log；如下代码：

//log4j 不会用，不知道怎么添加代码

import java.awt.Color;
import java.awt.Container;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

 

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;


public class lo extends JFrame{
 
 /**
  * 
  */
 private static final long serialVersionUID = 1L;
 JLabel l;
 public lo(){
  
  
  JPanel p=new JPanel();
  p.setBounds(0, 0, 600, 300);
  p.setBackground(Color.GRAY);
  
  Container c=getContentPane();
  
  
  final JTextField t=new JTextField();
  final JTextField t1=new JTextField();
  
  t1.setBounds(40, 40, 200, 60);
  t1.addActionListener(new ActionListener(){

   @Override
   public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
    if(t1.getText()!=null)
     t.setText(null);
    t.grabFocus();//获得光标
   }});
  
t.setBounds(40, 100, 200, 60);
  
  t.addActionListener(new ActionListener(){

   @Override
   public void actionPerformed(ActionEvent e) {
    // TODO Auto-generated method stub
    if(t.getText().equals(t1.getText()))
     {
     l.setVisible(true);
    
     l.setText("pass");
     //t=t1时，产生一log日志、里面有t和t1的获取内容，和结果pass
     t.setText(null);
    t1.setText(null);
    t1.grabFocus();
    }
    else
    {
     t.setText(null);
     t1.setText(null);
     t1.grabFocus();
     l.setText("fail");

    //t！=t1时，产生一log日志、里面有t和t1的获取内容，和结果fail

    }
    
   }});
  
  l=new JLabel();
  l.setBounds(50, 200, 300, 40);
  c.add(l);

  c.add(t1);
  c.add(t);

  c.add(p);

  c.setLayout(null);
  c.setSize(400, 400);
  c.setBackground(Color.blue);
    
  setSize(600, 600);
  setLayout(null);
  
  
 }
 public static void main(String[] args){
  JFrame  jf=new lo();
  jf.setVisible(true);
 }


}

Answer 1

学习很重要