用JAVA代码实现验证邮箱地址是否合法 需要有图形界面 要完整代码 要JDK1.6能运行的

发布网友 发布时间：2022-05-19 03:21

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热心网友 时间：2024-03-03 18:37

import java.awt.Button;
import java.awt.Frame;
import java.awt.Label;
import java.awt.TextField;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class MailUI extends Frame
{
    private Label     labelMail     = new Label("邮箱：");
    private Label     labelInfo     = new Label();
    private TextField textFieldMail = new TextField();
    private Button    buttonCheck   = new Button("验证");
    private Button    buttonReset   = new Button("重置");
    private Button    buttonEnd     = new Button("结束");
    
    public MailUI()
    {
        this.setLayout(null);
        labelMail.setBounds(50, 50, 50, 20);
        labelInfo.setBounds(210, 50, 100, 20);
        textFieldMail.setBounds(100, 50, 150, 20);
        buttonCheck.setBounds(50, 100, 50, 20);
        buttonReset.setBounds(150, 100, 50, 20);
        buttonEnd.setBounds(250, 100, 50, 20);
        
        this.add(labelMail);
        this.add(labelInfo);
        this.add(textFieldMail);
        this.add(buttonCheck);
        this.add(buttonReset);
        this.add(buttonEnd);
        
        this.setSize(350, 200);
        
        buttonCheck.addActionListener(new ActionListener()
        {
            @Override
            public void actionPerformed(ActionEvent e)
            {
                String mailAddress = textFieldMail.getText();
                if(null != mailAddress && mailAddress.trim().length() > 0)
                {
                    if(mailAddress.matches("[a-zA-Z]{1,40}@[1-9a-zA-Z]{1,40}\\.[a-zA-Z]{2,3}"))
                    {
                        labelInfo.setText("邮箱地址合法！");
                    }
                    else 
                    {
                        labelInfo.setText("邮箱地址不合法！");
                    }
                }
            }
        });
        
        buttonReset.addActionListener(new ActionListener()
        {
            @Override
            public void actionPerformed(ActionEvent e)
            {
                textFieldMail.setText(null);
                labelInfo.setText(null);
            }
        });
        
        buttonEnd.addActionListener(new ActionListener()
        {
            @Override
            public void actionPerformed(ActionEvent e)
            {
               System.exit(0);
            }
        });
    }
    
    public static void main(String[] args)
    {
        new MailUI().setVisible(true);
    }
}