准备导包

 

 

原理

 

 

package com.zou;
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.util.Properties;

public class MailDome01 {
    public static void main(String[] args) throws Exception {
        Properties prop = new Properties();
        prop.setProperty("mail.host","smtp.qq.com");//设置请求邮件服务器
        prop.setProperty("mail.transport.protocol","smtp");//邮件发送协议
        prop.setProperty("mail.smtp.auth","true");//需要验证用户名密码
        //关于qq邮箱还要设置ssl加密，加上以下代码
        MailSSLSocketFactory sf=new MailSSLSocketFactory();
        sf.setTrustAllHosts(true);
        prop.put("mail.smtp.ssl.enable","true");
        prop.put("mail.smtp.ssl.socketFactory",sf);
        Session session = Session.getDefaultInstance(prop, new Authenticator() {
            public PasswordAuthentication getPasswordAuthentication() {
                //发件人邮件用户名，授权码
                return new PasswordAuthentication("2246781190@qq.com", "gyxyarwlgecae");
            }
        });
        //开启session的debug模式，这样就可以查看到程序发送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授权码连上邮件服务器
        transport.connect("smtp.qq.com","2246781190@qq.com","gyxytarwlgecae");
      //创建邮件对象
        MimeMessage message=new MimeMessage(session);
        message.setFrom(new InternetAddress("2246781190@qq.com"));
        message.setRecipient(Message.RecipientType.TO,new InternetAddress("2246781190@qq.com"));//收件人可以是自己，可以是多个
        message.setSubject("我是idea信息");//邮件主题
        MimeBodyPart image=new MimeBodyPart();//发送图片对象
        DataHandler dh = new DataHandler(new FileDataSource("E:\\mail-java\\src\\熊猫.png"));//图片位置
        image.setDataHandler(dh);//处理成流的形式
        image.setContentID("bz.jpg");//给一个编号
        MimeBodyPart text=new MimeBodyPart();//创建正文对象
        text.setContent("这是一封正文带图片<img src='cid:bz.jpg'>的邮件","text/html;charset=UTF-8");
        MimeMultipart mm=new MimeMultipart();//创建信封
        mm.addBodyPart(text);//放进信封
        mm.addBodyPart(image);
        mm.setSubType("related");//信封格式
        message.setContent(mm);//包装信封
        message.saveChanges();//保存
        //发送邮件
        transport.sendMessage(message,message.getAllRecipients());
        //关闭连接
        transport.close();
    }}