【2020-03-02 使用SpringBoot 异步发送邮件】

矫情吗；* 2023-07-11 05:36 1阅读 0赞

## SpringBoot 异步发送邮件 ##

### 1、引入依赖 ###

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

### 2、测试发送邮件 ###

*  配置

spring.mail.username=*****@163.com
    spring.mail.password=*****
    spring.mail.host=smtp.163.com

*  测试发送邮件

package com.ybs;
    
    import org.junit.jupiter.api.Test;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.boot.test.context.SpringBootTest;
    import org.springframework.mail.SimpleMailMessage;
    import org.springframework.mail.javamail.JavaMailSender;
    import org.springframework.mail.javamail.JavaMailSenderImpl;
    import org.springframework.mail.javamail.MimeMailMessage;
    import org.springframework.mail.javamail.MimeMessageHelper;
    
    import javax.mail.MessagingException;
    import javax.mail.internet.MimeMessage;
    import java.io.File;
    
    @SpringBootTest
    class SpringSyncApplicationTests { 
    
        @Autowired
        JavaMailSenderImpl mailSender;
    
        @Test
        void sendMail1() { 
            // 一个简单的邮件
            SimpleMailMessage mailMessage = new SimpleMailMessage();
    
            mailMessage.setSubject("Springboot 测试邮件");
            mailMessage.setText("Springboot实现发送邮件");
    
            mailMessage.setTo("****@163.com");
            mailMessage.setFrom("****@163.com");
            mailSender.send(mailMessage);
        }
    
    
        @Test
        void sendMail2() throws MessagingException { 
            // 一个复杂的邮件
            MimeMessage mimeMessage = mailSender.createMimeMessage();
            MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);
    
            // 组装
            helper.setSubject("Springboot 测试复杂邮件");
            helper.setText("<p style='color:blue'>Springboot实现发送复杂邮件</p>", true);
    
            // 附件
            helper.addAttachment("1.png", new File("D:\\Users\\ybsde\\IdeaProjects\\SpringBoot\\spring-sync\\src\\main\\resources\\1.png"));
            helper.addAttachment("1.png", new File("D:\\Users\\ybsde\\IdeaProjects\\SpringBoot\\spring-sync\\src\\main\\resources\\1.png"));
    
            // 地址
            helper.setTo("****@163.com");
            helper.setFrom("****@163.com");
    
            mailSender.send(mimeMessage);
        }
    }

*  测试结果

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NTM0MTA3_size_16_color_FFFFFF_t_70]

*  设置定时发送

@Service
    public class ScheduleService {
    
        // 在一个特定的时间执行这个方法
        // cron 表达式
        // 秒 分 时 日 月 周几
        // 30 0/5 10,18 * * ? 每天10点和18点，每5分钟执行一次
        @Scheduled(cron = "0/5 * * * * 0-7")
        public void hello(){
            System.out.println("hello, 你被执行了~");
        }
    }

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NTM0MTA3_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20200303230008594.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM4NTM0MTA3,size_16,color_FFFFFF,t_70