定时发QQ邮件

1.获取授权码

首先打开QQ邮箱->设置->账户->开启服务POP3/SMTP开启->获取授权码

image

• 打开服务，需要发送短信的，然后获取授权码

2.添加pom依赖

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

3.配置application.properties

###邮箱配置
spring.mail.host=smtp.qq.com
spring.mail.username=******* //这里填写你的邮箱
spring.mail.password=********//这里填写上面你获取的授权码
spring.mail.default-encoding=UTF-8

###如果不加下面3句,会报530错误
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true

4.service接口

public interface MailService {
    /**
     * 发送简单邮件
     */
    void sendMail(String to,String subject,String content);
}

5.实现接口

@Service("MailService")
public class MailServiceImpl implements MailService {
    @Autowired
    private JavaMailSender mailSender;
    @Override
    public void sendMail(String to, String subject, String content) {
        SimpleMailMessage mailMessage=new SimpleMailMessage();
        mailMessage.setFrom("*********");//发起者的邮箱
        mailMessage.setTo("**********");//接受者的邮箱
        mailMessage.setSubject(subject);
        mailMessage.setText(content);
        try {
            mailSender.send(mailMessage);
            System.out.println("发送简单邮件");
        }catch (Exception e){
            System.out.println("发送简单邮件失败");
        }
    }
}

6.写定时任务

@Service
//@Async
public class TaskService {
    @Autowired
    private MailService mailService;

    @Scheduled(cron = "0 01 10 ? * *") //这是cron表达式

    public void proces(){
        mailService.sendMail("123456qq.com","标题","内容"); //一是接受者的邮箱，二是邮件的标题 三是邮件的内容
        System.out.println("111");
    }
}

7.最后启动主类

运行结果

image

cron表达式的讲解网址:https://www.cnblogs.com/linjiqin/archive/2013/07/08/3178452.html