springboot 发送邮件验证码

添加依赖包

		<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-mail</artifactId>
        </dependency>
        <!--thymeleaf前端模板(用来发送html模板)-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>

配置文件

##mail
spring.mail.properties.smtp.ssl.enable=true
#发送邮件服务器
spring.mail.host=smtp.163.com
spring.mail.username=xxx@163.com
spring.mail.password= yourpassword
spring.mail.port=465
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.timeout=25000
spring.mail.properties.mail.smtp.socketFactory.class=javax.net.ssl.SSLSocketFactory
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true
spring.mail.default-encoding=UTF-8

mail.fromMail.addr=linkgroup_server@163.com

接口类

package com.linkgroup.service;

/**
 * @author seldom
 */
public interface MailService {
    /**
     * 发送html
     * @param to
     * @param subject
     * @param content
     * @param filePath
     */
    void sendHtmlMail(String to, String subject, String content, String filePath);

    void sendHtmlMail(String to, String subject, String content);

    void sendCode(String to, String action);
}

实现类(这里要改成自己的html模板)

package com.linkgroup.service;

import com.linkgroup.util.VerCodeGenerateUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.io.FileSystemResource;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

import javax.annotation.Resource;
import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.io.File;
import java.time.Duration;

/**
 * @description:
 * @author: Seldom
 * @time: 2019/11/20 23:03
 */
@Component
public class MailServiceImpl implements MailService {

    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    @Autowired
    private TemplateEngine templateEngine;


    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    @Resource
    private JavaMailSender mailSender;

    @Value("${mail.fromMail.addr}")
    private String from;

    /**
     * 发送html邮件
     * @param to
     * @param subject
     * @param content
     */
    @Override
    public void sendHtmlMail(String to, String subject, String content, String filePath) {
        MimeMessage message = mailSender.createMimeMessage();

        try {
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);

            // 判断是否带有附件
            if (filePath != null) {
                FileSystemResource file = new FileSystemResource(new File(filePath));
                String fileName = filePath.substring(filePath.lastIndexOf(File.separator));
                helper.addAttachment(fileName, file);
            }

            mailSender.send(message);
            logger.info("html邮件发送成功");
        } catch (MessagingException e) {
            logger.error("发送html邮件时发生异常！", e);
        }
    }

    @Override
    public void sendHtmlMail(String to, String subject, String content) {
        MimeMessage message = mailSender.createMimeMessage();

        try {
            //true表示需要创建一个multipart message
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content, true);
            mailSender.send(message);
            logger.info("html邮件发送成功");
        } catch (MessagingException e) {
            logger.error("发送html邮件时发生异常！", e);
        }
    }

    @Override
    public void sendCode(String to, String action) {
        String verCode = VerCodeGenerateUtil.generateVerCode();
        redisTemplate.opsForValue().set(to, verCode, Duration.ofMinutes(5));
        Context context = new Context();
        context.setVariable("action", action);
        context.setVariable("code", verCode);
        String emailContent = templateEngine.process("sendCode", context);

        MimeMessage message = mailSender.createMimeMessage();
        try {
            MimeMessageHelper helper = new MimeMessageHelper(message, true);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject("主题：验证码");
            helper.setText(emailContent, true);
            mailSender.send(message);
            logger.info("html邮件发送成功");
        } catch (MessagingException e) {
            logger.error("发送html邮件时发生异常！", e);
        }
    }
}

测试类

package com.linkgroup;

import com.linkgroup.service.EmailService;
import com.linkgroup.service.MailService;
import com.linkgroup.util.VerCodeGenerateUtil;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.mail.SimpleMailMessage;
import org.thymeleaf.TemplateEngine;
import org.thymeleaf.context.Context;

import java.time.Duration;

@SpringBootTest
class LinkgroupApplicationTests {

    @Autowired
    private MailService mailService;

    @Autowired
    private TemplateEngine templateEngine;

    @Autowired
    private EmailService emailService;

    @Test
    void contextLoads() {
        emailService.sendEmailVerCode("[email protected]", VerCodeGenerateUtil.generateVerCode());
        emailService.sendEmailVerCode("[email protected]", VerCodeGenerateUtil.generateVerCode());
    }

    @Autowired
    private RedisTemplate<String, String> redisTemplate;

    @Test
     void set(){
        Integer i = 0;
        while ( i <= 5 ){
            String verCode = VerCodeGenerateUtil.generateVerCode();
            redisTemplate.opsForValue().set(i.toString(), verCode, Duration.ofMinutes(5));
            System.out.println(redisTemplate.opsForValue().get(i.toString()));
            //redisTemplate.delete(i.toString());
            i++;
        }
    }

    @Test
    public void sendTemplateMail() {
        //创建邮件字段
        Context context = new Context();
        context.setVariable("siteTitle", "xxx");
        context.setVariable("permalink", "xxx");
        context.setVariable("title", "xx");
        // 将字段加载到页面模板中
        String emailContent = templateEngine.process("sendMail", context);
        // 添加附件
        String filePath="E:\\workspace\\javaWorkspace\\spring-boot-learning\\spring-boot-21-schedule-mail\\doc\\test.log";
        mailService.sendHtmlMail("[email protected]","主题：这是模板邮件",emailContent, filePath);
    }


    @Test
    public void sendTemplateMail2() {
        mailService.sendCode("[email protected]","注册账号...");
    }



}