SpringBoot 异步注解

1、Application 加注解 @EnableAsync 开启异步。

2、需要异步的方法上加注解 @Async。

--不能为静态方法

--调用处不能在同一个类里

https://blog.csdn.net/qq_36827957/article/details/105087856

https://www.cnblogs.com/xiaogblog/p/14011290.html

yml文件

async:
  executor:
    thread:
      core_pool_size: 5
      max_pool_size: 15
      queue_capacity: 30
      keep_alive_seconds: 60
      name_prefix: email-send-

mail:
  host: ip
  username: 邮箱名称 
  password: 密码
  port: 25
  default-encoding: UTF-8

EmailService

@Data
@Async("emailSendExecutor")
@Component
@ConfigurationProperties(prefix = "spring.mail")
public class EmailService {
    private final Logger logger = LoggerFactory.getLogger(this.getClass());

    private final JavaMailSender javaMailSender;

    private String username;

    public void sendSimpleMail(String toUser, String subject, String content) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setFrom(username);
        message.setTo(toUser);
        message.setSubject(subject);
        message.setText(content);
        javaMailSender.send(message);
    }

    public void sendMimeEmail(String toUser, String subject, String content) {
        MimeMessage message = javaMailSender.createMimeMessage();
        MimeMessageHelper messageHelper;
        try {
            messageHelper = new MimeMessageHelper(message, true);
            messageHelper.setFrom(username);
            messageHelper.setTo(toUser);
            messageHelper.setSubject(subject);
            messageHelper.setText(content, true);
            javaMailSender.send(message);
            logger.info("发送邮件成功");
        } catch (MessagingException e) {
            e.printStackTrace();
            logger.error("发送失败：" + e);
        }
    }
}