Java实战之基于swing的QQ邮件收发功能实现

import com.sun.mail.util.MailSSLSocketFactory;

import javax.swing.*;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Properties;

public class SendEmailManger extends Thread {
    private String mailAdr;//邮箱
    private String content;//邮件的内容
    private String subject;//邮件的题目
    public SendEmailManger(String mailAdr, String subject, String content) {
        super();
        this.mailAdr = mailAdr;
        this.subject = subject;
        this.content = content;
    }
    @Override
    public void run() {
        super.run();
        try {
            sendMail(mailAdr, subject, content);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    private void sendMail(String mailAdr, String subject, String content) throws Exception {
        //加密的邮件套接字协议工厂
        MailSSLSocketFactory sf = new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);
        final Properties props = new Properties();
        // 表示SMTP发送邮件，需要进行身份验证
        props.put("mail.transport.protocol", "smtp");
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.host", "smtp.qq.com");
        // smtp登陆的账号、密码 ；需开启smtp登陆
        props.setProperty("mail.debug", "true");
        props.put("mail.user", "此处写你的qq邮箱");
        props.put("mail.passWord", "此处写你的QQ授权码");
        // 特别需要注意，要将ssl协议设置为true,否则会报530错误
        props.put("mail.smtp.ssl.enable", "true");
        props.put("mail.smtp.ssl.socketFactory", sf);
        Authenticator authenticator = new Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                // 用户名、密码
                String userName = props.getProperty("mail.user");
                String password = props.getProperty("mail.password");
                return new PasswordAuthentication(userName, password);
            }
        };
        // 使用环境属性和授权信息，创建邮件会话
        Session mailSession = Session.getInstance(props, authenticator);
        // 创建邮件消息
        MimeMessage message = new MimeMessage(mailSession);
        // 设置发件人
        try {
            InternetAddress fORM = new InternetAddress(props.getProperty("mail.user"));
            message.setFrom(form);
            // 设置收件人
            InternetAddress to = new InternetAddress(mailAdr);
            message.setRecipient(Message.RecipientType.TO, to);
            // 设置邮件标题
            message.setSubject(subject);
            // 设置邮件的内容体
            message.setContent(content, "text/html;charset=UTF-8");

            // 发送邮件
            Transport.send(message);
        } catch (MessagingException e) {
            e.printStackTrace();
        }
    }
    public static void main(String[] args) {
        // 1. 创建一个顶层容器（窗口）
        JFrame jf = new JFrame("发送邮件");
        jf.setSize(500, 500);
        jf.setLocationRelativeTo(null);
        jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        // 2. 创建中间容器（面板容器）
        JPanel panel = new JPanel(null);

        // 3. 创建一个基本组件（按钮），并添加到 面板容器 中

        JLabel jla1 = new JLabel("收件邮箱: ");
        jla1.setLocation(50,50);
        jla1.setSize(100, 50);
        jla1.setFont(new Font("123", 5, 20));

 final  JTextField textField = new JTextField(8);
        textField.setFont(new Font("mailAdr", Font.PLAIN, 20));
        textField.setLocation(150,50);
        textField.setSize(250, 50);

        JLabel jla2 = new JLabel("邮件标题: ");
        jla2.setLocation(50,150);
        jla2.setSize(100, 50);
        jla2.setFont(new Font("123", 5, 20));

final   JTextField textField1 = new JTextField(8);
        textField1.setFont(new Font("subject", Font.PLAIN, 20));
        textField1.setLocation(150,150);
        textField1.setSize(250, 50);

        JLabel jla3 = new JLabel("邮件内容: ");
        jla3.setLocation(50,250);
        jla3.setSize(100, 50);
        jla3.setFont(new Font("123", 5, 20));

final   JTextField textField3 = new JTextField(8);
        textField3.setFont(new Font("content", Font.PLAIN, 20));
        textField3.setLocation(150,250);
        textField3.setSize(250, 50);

        JButton btn = new JButton("发送邮件");
        btn.setLocation(50,350);
        btn.setSize(100, 50);
        btn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {

                SendEmailManger d = new SendEmailManger(textField.getText(), textField1.getText(), textField3.getText());
                d.start();

            }
        });

        panel.add(jla1);
        panel.add(jla2);
        panel.add(jla3);
        panel.add(textField);
        panel.add(textField1);
        panel.add(textField3);
        panel.add(btn);


        // 4. 把 面板容器 作为窗口的内容面板 设置到 窗口
        jf.setContentPane(panel);

        // 5. 显示窗口，前面创建的信息都在内存中，通过 jf.setVisible(true) 把内存中的窗口显示在屏幕上。
        jf.setVisible(true);
    }

}

import com.sun.mail.util.MailSSLSocketFactory;
import com.sun.org.apache.bcel.internal.generic.NEW;

import javax.mail.*;
import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.Date;
import java.util.Properties;



public class ReceiveEmailManger extends Thread {

    public static void main(String[] args){

// 1. 创建一个顶层容器（窗口）
        JFrame jf = new JFrame("接收邮件");
        jf.setSize(500, 500);
        jf.setLocationRelativeTo(null);
        jf.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        JPanel panel = new JPanel(null);

        JLabel jla2 = new JLabel("标题: ");
        jla2.setLocation(50,50);
        jla2.setSize(150, 50);
        jla2.setFont(new Font("123", 5, 20));

        final   JTextField textField1 = new JTextField(8);
        textField1.setFont(new Font("subject", Font.PLAIN, 20));
        textField1.setLocation(150,50);
        textField1.setSize(250, 50);

        JLabel jla3 = new JLabel("邮件内容: ");
        jla3.setLocation(50,150);
        jla3.setSize(150, 50);
        jla3.setFont(new Font("123", 5, 20));

        final   JTextField textField3 = new JTextField(8);
        textField3.setFont(new Font("content", Font.PLAIN, 20));
        textField3.setLocation(150,150);
        textField3.setSize(250, 50);

   final      JTextArea jta = new JTextArea();
        jta.setLocation(150,150);
        jta.setSize(250, 200);
        jta.setFont(new Font("content", Font.PLAIN, 30));
        JButton btn = new JButton("接收邮件");
        btn.setLocation(150,380);
        btn.setSize(100, 50);
        btn.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {

        try {
        ReceiveEmailManger re = new ReceiveEmailManger();
         String [] mess =  re.ReceiveEmailManger();
            textField1.setText(mess[1]);
            jta.setText(mess[2]);
        }catch (Exception ea){
         ea.printStackTrace();
        }

            }
        });

        panel.add(jla2);
        panel.add(jla3);
        panel.add(textField1);

        panel.add(btn);
        panel.add(jta);

        // 4. 把 面板容器 作为窗口的内容面板 设置到 窗口
        jf.setContentPane(panel);

        // 5. 显示窗口，前面创建的信息都在内存中，通过 jf.setVisible(true) 把内存中的窗口显示在屏幕上。
        jf.setVisible(true);

 }



    public String[] ReceiveEmailManger() throws Exception {
        //加密的邮件套接字协议工厂
        MailSSLSocketFactory sf = new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);
        String pop3Server = "pop.qq.com";
        String protocol = "pop3";
        String username = "此处填写qq邮箱";
        String password = "此处填写QQ授权码";
        Properties prop = new Properties();
        prop.put("mail.store.protocol", protocol);
        prop.put("mail.pop3.host", pop3Server);
        // 特别需要注意，要将ssl协议设置为true,否则会报530错误
        prop.put("mail.pop3.ssl.enable", "true");
        prop.put("mail.pop3.ssl.socketFactory", sf);
        Session mailSession = Session.getDefaultInstance(prop,null);
        mailSession.setDebug(false);
        String [] mess = new  String[3];
        try {
            Store store = mailSession.getStore(protocol);
            //登录验证
            store.connect(pop3Server,username,password);
            //获得用户的邮件账户，注意通过pop3协议获取某个邮件夹的名称只能为inbox
            Folder folder = store.getFolder("inbox");
            //设置访问权限
            folder.open(Folder.READ_ONLY);
            //获取所有邮件
            int size = folder.getMessageCount();
            Message message = folder.getMessage(size);
            //获取第一封发件人地址
            String from = message.getFrom()[0].toString();
            //获取第一封邮件标题
            String subject = message.getSubject();
            //获取第一封邮件内容
            String conten = message.getContent().toString();

            mess[0]=from;
            mess[1]=subject;
            mess[2]=conten;
            
            folder.close(false);
            store.close();
        }catch(Exception e) {
            e.printStackTrace();
        }
        return mess;
    }
}

<!-- java发送邮件jar包 -->
<dependencies>
    <dependency>
        <groupId>javax.mail</groupId>
        <artifactId>mail</artifactId>
        <version>1.4.7</version>
    </dependency>
</dependencies>