使用javamail发送邮件03

Posted 2021-11-28 lazyli

使用java发送邮件，这里发件是使用qq邮箱发送；如果使用其他类型邮箱，将qq相关的信息改成对应的邮箱；

import java.io.File;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;
import javax.mail.Address;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeBodyPart;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMultipart;

import com.sun.mail.util.MailSSLSocketFactory;

public class JavaMailDemo {

    public static void main(String[] args) throws Exception {
        Properties prop = new Properties();
        prop.setProperty("mail.host", "smtp.qq.com");
        prop.setProperty("mail.transport.protocol", "smtp");
        prop.setProperty("mail.smtp.auth", "true");
        //开启SSL加密，
        MailSSLSocketFactory sf = new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);
        prop.put("mail.smtp.ssl.enable", "true");
        prop.put("mail.smtp.ssl.socketFactory", sf);        
        //1、创建Session
        Session session = Session.getInstance(prop);
        //开启Sessiondebug模式，查询程序发送Email的运行状态
        session.setDebug(true);
        //通过session得到transport对象
        Transport transport = session.getTransport();
        //使用邮箱的用户名和密码连上邮件服务器，发送邮件时，发件人需要提交邮箱的用户名和密码给smtp服务器，
        //用户名和密码都通过验证之后才能够发送邮件给收件人
        //"xxx"是qq邮箱授权码,可以百度qq邮箱授权码是如何获得的，将这个“xxx”换成授权码即可
        transport.connect("smtp.qq.com","[email protected]","xxx");
        //创建简单文本邮件
        //Message message = createSimpleMail(session);
        Message message = createAttchMail(session);//创建带附件的邮件
        //发送邮件
        transport.sendMessage(message, message.getAllRecipients());
        transport.close();
        
        
    }
    /**
     * 发送简单文本邮件
     * @param session
     * @return
     * @throws AddressException
     * @throws MessagingException
     */
    public static MimeMessage createSimpleMail(Session session) throws AddressException, MessagingException{
        //创建邮件对象
        MimeMessage message = new MimeMessage(session);
        //指明邮件的发件人
        message.setFrom(new InternetAddress("[email protected]"));
        message.setRecipient(Message.RecipientType.TO,new InternetAddress("[email protected]"));
        //邮件的标题
        message.setSubject("只包含文本的简单邮件");
        //邮件的文本内容
        message.setContent("你好啊","text/html;charset=utf-8");
        return message;
    }
    /**
     * 发送带附件的邮件
     * @throws MessagingException 
     * @throws AddressException 
     */
    public static MimeMessage createAttchMail(Session session) throws AddressException, MessagingException{
        //创建邮件对象
        MimeMessage message = new MimeMessage(session);
        //指明邮件的发件人
        message.setFrom(new InternetAddress("[email protected]"));
        //message.setRecipient(Message.RecipientType.TO,new InternetAddress("[email protected]"));
        //批量发送邮件
        Address[] addresses = new Address[2];
        addresses[0] = new InternetAddress("[email protected]");
        addresses[1] = new InternetAddress("[email protected]");
        message.setRecipients(Message.RecipientType.TO, addresses);
        //邮件标题
        message.setSubject("发送带附件的邮件");
        //创建邮件正文，设置编码格式
        MimeBodyPart text = new MimeBodyPart();
        text.setContent("使用javamail创建带附件的邮件", "text/html;charset=utf-8");
        //创建邮件附件
        MimeBodyPart attach = new MimeBodyPart();
        File file = new File("F:/学位.jpg");
        DataHandler dh = new DataHandler(new FileDataSource(file));
        attach.setDataHandler(dh);
        attach.setFileName(dh.getName());
        //创建容器描述数据关系
        MimeMultipart mp = new MimeMultipart();
        mp.addBodyPart(text);
        mp.addBodyPart(attach);
        mp.setSubType("mixed");
        
        message.setContent(mp);
        message.saveChanges();
        return message;
    }
    
}