springboot评论回复邮件提醒，附带工具类代码-开箱即用

效果展示

步骤

1-获取授权码

获取qq或其他第三方登录邮箱发邮件的授权码，相当于qq密码，让别人登录后拿你账号发邮件用的

2-application.yml配置文件中填入对应信息

邮箱和授权码即可，其他默认， debug属性为true可以在控制台输出错误信息

spring:
  mail:
    #  默认的邮件编码为UTF-8
    default-encoding: UTF-8
    # 邮箱服务器
    host: smtp.qq.com
    # 邮箱
    username: //你的qq邮箱
    # 密码
    password: //授权码填写位置
    # 端口
    port: 587
    # 其它属性，这里只开启debug输出错误信息
    properties:
      debug: true

3-写工具类

package com.example.vueelementson.common;

import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;
import org.springframework.stereotype.Component;

import javax.mail.MessagingException;
import javax.mail.internet.MimeMessage;
import java.util.Date;

/**
 * @BelongsProject: blog-springboot
 * @BelongsPackage: com.example.vueelementson.common
 * @Author: Zww
 * @CreateTime: 2024-07-23  09:40
 * @Description: TODO
 * @Version: 1.0
 */
@Slf4j
@Component
public class MailHelper {


    @Value("${spring.mail.username}")
    private String from;

    // 定义私有常量
    private final JavaMailSender javaMailSender;

    // 构造函数，设置私有常量JavaMailSender
    public MailHelper(JavaMailSender javaMailSender) {
        this.javaMailSender = javaMailSender;
    }

    public void sendMail(String receiver, String subject, String content) {
        // 使用Java..sender创建消息对象
        MimeMessage mimeMessage = javaMailSender.createMimeMessage();
        // 传入
        MimeMessageHelper mimeMessageHelper = new MimeMessageHelper(mimeMessage);
        try {
            // 设置发件时间
            mimeMessageHelper.setSentDate(new Date());
            // 设置发件来源邮箱
            mimeMessageHelper.setFrom(from);
            // 设置收件人
            mimeMessageHelper.setTo(receiver);
            // 设置标题
            mimeMessageHelper.setSubject(subject);
            // 设置内容
            mimeMessageHelper.setText(content);
            // 发送
            javaMailSender.send(mimeMessage);
        } catch (MessagingException e) {
            log.error(e.getMessage(), e);
        }
    }
}

4-测试

package com.example.vueelementson;

import com.example.vueelementson.common.MailHelper;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

/**
 * @BelongsProject: blog-springboot
 * @BelongsPackage: com.example.vueelementson
 * @Author: Zww
 * @CreateTime: 2024-07-23  09:55
 * @Description: TODO
 * @Version: 1.0
 */

@SpringBootTest
public class MailTest {
    @Autowired
    private MailHelper helper;

    @Test
    public void testSend() {
        helper.sendMail("1626016153@qq.com", "测试", "测试邮件内容");
    }
}

5-业务类

在评论保存时发送邮件给站长，异步，否则堵塞占用用户时间

@Autowired
private CommentService commentService;
@Autowired
private ArticleService articleService;
@Autowired
private MailHelper mailHelper;
/**
     * 新增评论
     */
@PostMapping("/add")
public Result add(@RequestBody Comment comment) {
    // Async注解基于AOP,AOP基于动态代理
    // 由于以下方法直接调用本类的异步为this对象内部本身,没有走spring容器代理,类似没有多开一个线程额外的处理异步任务
    // sendMailToMaster(comment.getArticleId());
    // 也可以使用将该发送方法封装到另一个类,带有component注解并调用也行
    Integer articleId = comment.getArticleId();
    CommentController bean = SpringUtil.getBean(CommentController.class);
    bean.sendMailToMaster(articleId, comment.getCommentContent());
    // 判断该评论是否有父评论,有的话给父评论也提个醒
    if (comment.getPid() != null) {
        Comment repliedComment = commentService.getById(comment.getPid());
        if (repliedComment != null && repliedComment.getEmail() != null) {
            bean.sendMailToUser(articleId, repliedComment.getEmail());
        }
    }
    return Result.success(commentService.save(comment));
}

@Async
public void sendMailToMaster(Integer articleId, String comment) {
    Article byId = articleService.getById(articleId);
    if (byId == null) return;
    String content = "文章" + byId.getTitle() + "收到新评论,链接为\n" + Website.ARTICLE_URL + articleId + "\n评论内容为:" + comment + "\n时间:" + new Date();
    mailHelper.sendMail(Website.MASTER_MAIL, "文章" + byId.getTitle() + "收到新评论", content);
}

@Async
public void sendMailToUser(Integer articleId, String userEmail) {
    Article byId = articleService.getById(articleId);
    if (byId == null) return;
    String content = "你的评论收到了一条回复,链接为\n" + Website.ARTICLE_URL + articleId + "\n时间:" + new Date() + "快去看看吧";
    mailHelper.sendMail(userEmail, "在Zww博客上的评论收到一条新回复", content);
}

记得在Application入口类添加@EnableAsync注解

原文地址：https://blog.csdn.net/Zwwxd666/article/details/140632124

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