仿牛客网社区开发（登录模块-邮件发送）

• 概述
• spring mail
• • 导入依赖
  • 邮箱参数设置
  • MailClient - JavaMailSender
  • 发送html邮件

希望实现的效果：登录模块-注册功能，用户注册后，发送激活账户邮件（带激活码）

使用新浪邮箱，开启smtp服务（发邮件）

    org.springframework.boot
    spring-boot-starter-mail
    2.5.4

在配置文件中配置以下参数

spring.mail.host=smtp.sina.com  
spring.mail.port=465
spring.mail.username=xxx
spring.mail.password=xxx
spring.mail.protocal=smtps
spring.mail.properties.mail.smtp.ssl.enable=true

使用JavaMailSender接口实现普通邮件的发送

package com.lin.util;

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.mail.javamail.JavaMailSender;
import org.springframework.mail.javamail.MimeMessageHelper;

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

public class MailClient {
    private static Logger logger = LoggerFactory.getLogger(MailClient.class);

    @Autowired
    JavaMailSender mailSender;

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

    public void sendMail(String to,String subject,String content){
        try {
            MimeMessage message = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(message);
            helper.setFrom(from);
            helper.setTo(to);
            helper.setSubject(subject);
            helper.setText(content,true);
            mailSender.send(helper.getMimeMessage());
        } catch (MessagingException e) {
            logger.error("发送邮件失败:"+e.getMessage());
        }

    }
}

要发送html邮件，设置helper.setText参数true，然后测试如下图：