邮件发送_

import com.sun.mail.util.MailSSLSocketFactory;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;
import java.security.GeneralSecurityException;
import java.util.Properties;

/**
 * @ClassName: SendComplexEmail
 * @Description:
 * @Author: Fufeng
 * @Date: 2022/10/24 14:15
 */
public class SendComplexEmail {

    public static void main(String[] args) throws GeneralSecurityException, MessagingException {
        Properties prop = new Properties();
        // 设置QQ邮件服务器
        prop.setProperty("mail.host", "smtp.qq.com");
        // 当使用公司内部邮箱，可以设置端口
        //prop.setProperty("mail.smtp.port", "25");
        // 当使用公司内部邮箱，可以设置服务器
        //prop.setProperty("mail.smtp.host", "smtp.qq.com");
        // 邮件发送协议
        prop.setProperty("mail.transport.protocol", "smtp");
        // 需要验证用户名密码
        prop.setProperty("mail.smtp.auth", "true");

        // QQ邮箱设置SSL加密（可以不改）
        MailSSLSocketFactory sf = new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);
        prop.put("mail.smtp.ssl.enable", "true");
        prop.put("mail.smtp.ssl.socketFactory", sf);

        //1、创建定义整个应用程序所需的环境信息的 Session 对象
        Session session = Session.getDefaultInstance(prop, new Authenticator() {
            @Override
            protected PasswordAuthentication getPasswordAuthentication() {
                //传入发件人的姓名和授权码
                return new PasswordAuthentication("[email protected]","lekcavwsqdshdjcd");
            }
        });

        //2、通过session获取transport对象
        Transport transport = session.getTransport();

        //3、通过transport对象邮箱用户名和授权码连接邮箱服务器
        transport.connect("smtp.qq.com","[email protected]","lekcavwsqdshdjcd");

        //4、创建邮件,传入session对象
        MimeMessage mimeMessage = complexEmail(session);

        //5、发送邮件
        transport.sendMessage(mimeMessage,mimeMessage.getAllRecipients());

        //6、关闭连接
        transport.close();


    }

    public static MimeMessage complexEmail(Session session) throws MessagingException {
        //消息的固定信息
        MimeMessage mimeMessage = new MimeMessage(session);

        //发件人
        mimeMessage.setFrom(new InternetAddress("[email protected]"));
        //收件人
        mimeMessage.setRecipient(Message.RecipientType.TO,new InternetAddress("[email protected]"));
        //邮件标题
        mimeMessage.setSubject("带图片和附件的邮件");

        //邮件内容
        //准备图片数据
        MimeBodyPart image = new MimeBodyPart();
        DataHandler handler = new DataHandler(new FileDataSource("C:\\Users\\Administrator\\Desktop\\picture\\1.png"));
        image.setDataHandler(handler);
        //设置图片id
        image.setContentID("test.png");

        //准备文本
        MimeBodyPart text = new MimeBodyPart();
        text.setContent("这是一段文本","text/html;charset=utf-8");

        //附件
        MimeBodyPart appendix = new MimeBodyPart();
        appendix.setDataHandler(new DataHandler(new FileDataSource("C:\\Users\\Administrator\\Desktop\\picture\\1.txt")));
        appendix.setFileName("test.txt");

        //拼装邮件正文
        MimeMultipart mimeMultipart = new MimeMultipart();
        mimeMultipart.addBodyPart(image);
        mimeMultipart.addBodyPart(text);
        //文本和图片内嵌成功
        mimeMultipart.setSubType("related");

        //将拼装好的正文内容设置为主体
        MimeBodyPart contentText = new MimeBodyPart();
        contentText.setContent(mimeMultipart);

        //拼接附件
        MimeMultipart allFile = new MimeMultipart();
        //附件
        allFile.addBodyPart(appendix);
        //正文
        allFile.addBodyPart(contentText);
        //正文和附件都存在邮件中，所有类型设置为mixed
        allFile.setSubType("mixed");


        //放到Message消息中
        mimeMessage.setContent(allFile);
        //保存修改
        mimeMessage.saveChanges();

        return mimeMessage;
    }

}