java发送邮件的代码

Posted 2020-10-07

package com.dong.mail;

import java.util.Properties;

import javax.mail.Authenticator;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.PasswordAuthentication;
import javax.mail.Session;
import javax.mail.Transport;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import javax.mail.internet.MimeMessage.RecipientType;

public class MailUtils {

    //email:邮件发给谁  subject:主题  emailMsg：邮件的内容
    public static void sendMail(String email, String subject, String emailMsg)
            throws AddressException, MessagingException {
        
        // 1.创建一个程序与邮件服务器会话对象 Session
        Properties props = new Properties();
        props.setProperty("mail.transport.protocol", "SMTP");//发邮件的协议
        props.setProperty("mail.host", "smtp.163.com");//发送邮件的163服务器地址
        props.setProperty("mail.smtp.auth", "true");// 指定验证为true

        // 创建验证器
        Authenticator auth = new Authenticator() {
            public PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication("xxx", "mima");//发邮件的账号的验证
            }
        };

        Session session = Session.getInstance(props, auth);

        // 2.创建一个Message，它相当于是邮件内容
        Message message = new MimeMessage(session);

        message.setFrom(new InternetAddress("[email protected]")); // 设置发送者

        message.setRecipient(RecipientType.TO, new InternetAddress(email)); // 设置发送方式与接收者

        message.setSubject(subject);//邮件的主题

        message.setContent(emailMsg, "text/html;charset=utf-8");

        // 3.创建 Transport用于将邮件发送
        Transport.send(message);
    }
}