SpringBoot整合邮箱发送验证码

article/2025/11/9 5:59:06

1、以QQ邮箱为例，点开设置开启POP3/SMTP服务

2、创建一个springboot项目

1）引入maven依赖

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

2)配置yml文件

spring:mail:# 配置 SMTP 服务器地址host: smtp.qq.com# 发送者邮箱username: 1234567@qq.com# 配置密码，注意不是真正的密码，而是刚刚申请到的授权码password: etorqsqmpsrtbada# 端口号465或587port: 587# 默认的邮件编码为UTF-8default-encoding: UTF-8# 配置SSL 加密工厂properties:mail:smtp:socketFactoryClass: javax.net.ssl.SSLSocketFactory#表示开启 DEBUG 模式，这样，邮件发送过程的日志会在控制台打印出来，方便排查错误debug: true

3)创建controller

package com.atguigu.msmservice.controller;import com.atguigu.commonutils.R;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.mail.MailException;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.web.bind.annotation.*;import javax.annotation.Resource;import java.util.Random;
import java.util.concurrent.TimeUnit;@RestController
@RequestMapping("/messervice/email")
@CrossOrigin
public class EmailController {@Autowiredprivate RedisTemplate<String,String> redisTemplate;@Resourceprivate JavaMailSender javaMailSender;//读取yml文件中username的值并赋值给form@Value("${spring.mail.username}")private String from;@GetMapping("/sendEmail/{emailReceiver}")public R sendSimpleMail(@PathVariable String emailReceiver) {// 构建一个邮件对象SimpleMailMessage message = new SimpleMailMessage();// 设置邮件发送者message.setFrom(from);// 设置邮件接收者message.setTo(emailReceiver);// 设置邮件的主题message.setSubject("登录验证码");// 设置邮件的正文Random random = new Random();StringBuilder code = new StringBuilder();for (int i = 0; i < 6; i++) {int r = random.nextInt(10);code.append(r);}String text = "您的验证码为：" + code + ",请勿泄露给他人。";message.setText(text);// 发送邮件try {javaMailSender.send(message);//将验证码保存到redis缓存中，设置有效时间为5分钟redisTemplate.opsForValue().set(emailReceiver, String.valueOf(code),5, TimeUnit.MINUTES);return R.ok();} catch (MailException e) {e.printStackTrace();}return R.error().message("发送失败");}
}

测试，输入收件人的邮箱