application.yml

spring:profiles:active: dev
#    active: test#邮件附件上传文件大小限制servlet:multipart:max-file-size: 50MB  #单个文件大小限制max-request-size: 100MB #总文件大小限制（允许存储文件的文件夹大小）mail:default-encoding: UTF-8host: smtp.qq.comusername: xxxxxxx@qq.compassword: xxxxxxxxx#邮箱设置第三方登录授权码test-connection: falseproperties:mail.smtp.auth: true

 邮箱设置第三方登录授权码获取

 邮箱设置第三方登录授权码获取https://blog.csdn.net/xnian_/article/details/134515274?csdn_share_tail=%7B%22type%22%3A%22blog%22%2C%22rType%22%3A%22article%22%2C%22rId%22%3A%22134515274%22%2C%22source%22%3A%22xnian_%22%7D

package com.cloud.xxx.utils;import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Configuration;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;
import org.springframework.stereotype.Service;import javax.annotation.Resource;
import java.security.Security;
import java.util.Date;
import java.util.Properties;import javax.mail.*;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;@Slf4j
@Service
public class MailServiceUtil {@Resourceprivate JavaMailSender javaMailSender;/*** 发件人的邮箱地址<br>* 即我们配置的邮件服务的邮箱*/@Value("${spring.mail.username}")private String serverMail;@Value("${spring.mail.password}")private String password;@Value("${spring.mail.host}")private String host;/*** 发送邮件** @param toUser  收件人邮件地址* @param subject 标题* @param text    正文*/public boolean sendMail(String toUser, String subject, String text) {try {MimeMessage message = javaMailSender.createMimeMessage();MimeMessageHelper helper = new MimeMessageHelper(message, true);helper.setFrom(serverMail);helper.setTo(toUser.split(","));helper.setSubject(subject);helper.setText(text, true);javaMailSender.send(message);log.info("发送邮件to:{},主题：{},内容：{}", toUser, subject, text);} catch (Exception e) {log.error("sendMail ", e);return Boolean.FALSE;}return Boolean.TRUE;}/*** 使用加密的方式,利用 587 端口进行传输邮件,开启ssl* @param to    收件人邮箱* @param message    邮件正文* @param title 邮件标题*/public  boolean sendMail587(String to, String title, String message) {try {Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());final String SSL_FACTORY = "javax.net.ssl.SSLSocketFactory";//设置邮件会话参数Properties props = new Properties();//邮箱的发送服务器地址props.setProperty("mail.smtp.host", host);props.setProperty("mail.smtp.socketFactory.class", SSL_FACTORY);props.setProperty("mail.smtp.socketFactory.fallback", "false");//邮箱发送服务器端口,这里设置为 587 端口props.setProperty("mail.smtp.port", "587");props.setProperty("mail.smtp.socketFactory.port", "587");props.put("mail.smtp.auth", "true");//获取到邮箱会话,利用匿名内部类的方式,将发送者邮箱用户名和密码授权给jvmSession session = Session.getDefaultInstance(props, new Authenticator() {protected PasswordAuthentication getPasswordAuthentication() {return new PasswordAuthentication(serverMail, password);}});//通过会话,得到一个邮件,用于发送Message msg = new MimeMessage(session);//设置发件人msg.setFrom(new InternetAddress(serverMail));//设置收件人,to为收件人,cc为抄送,bcc为密送msg.setRecipients(Message.RecipientType.TO, InternetAddress.parse(to, false));
//            msg.setRecipients(Message.RecipientType.CC, InternetAddress.parse(to, false));
//            msg.setRecipients(Message.RecipientType.BCC, InternetAddress.parse(to, false));// 设置邮件标题msg.setSubject(title);//设置发送的日期msg.setSentDate(new Date());/*//设置邮件消息msg.setText(message);*/// 设置邮件的内容体msg.setContent(message, "text/html;charset=UTF-8");//调用Transport的send方法去发送邮件Transport.send(msg);} catch (Exception e) {log.error("sendMail ", e);return Boolean.FALSE;}return Boolean.TRUE;}
}