1 创建Spring Boot项目

2 导入依赖

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-mail</artifactId>
    <version>2.6.3</version>
</dependency>

3 配置application.yml

spring:
  mail:
    host: # 邮箱服务器 例：smtp.qq.com
    username: ****@qq.com
    password: ****
    properties:
      mail:
        smtp:
          auth: true
          starttls:
            enable: true
            required: true

4 MailService.java

package com.zhangz1.maildemo.service;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;

/**
 * Created by zhang1 on 2022/2/13 17:02
 */
@Service
public class MailService {
    @Resource
    JavaMailSender mailSender;

    private final Logger logger = LoggerFactory.getLogger(MailService.class);

    public String send(String sender, String receiver, String title, String text) {
        try {
            //建立邮件消息
            MimeMessage message = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            //发送方
            helper.setFrom(sender);
            //接收方
            helper.setTo(receiver);
            //发送的标题
            helper.setSubject(title);
            //发送的内容
            helper.setText(text);
            mailSender.send(message);
        } catch (MessagingException e) {
            logger.error(e.getMessage());
        }
        return "发送成功";
    }
}

5 MailController.java

package com.zhangz1.maildemo.controller;

import com.zhangz1.maildemo.service.MailService;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.annotation.Resource;
import java.util.Random;

/**
 * Created by zhangz1 on 2022/2/13 17:10
 */
@RestController
public class MailController {

    @Resource
    private MailService mailService;

    @RequestMapping("/sendMail")
    public String send() {
        String checkCode = String.valueOf(new Random().nextInt(899999) + 100000);
        String sender = "2659445660@qq.com"; //发送方邮箱
        String receiver = "admin@zhangz1.top"; //接收方邮箱
        String title = "验证码";
        String text = "您的验证码为" + checkCode;
        return mailService.send(sender, receiver, title, text);
    }

}

6 测试

版权属于：张子

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