邮件发送---SpringBoot

邮件任务

邮件发送，在我们的日常开发中，也非常的多，Springboot也帮我们做了支持

邮件发送需要引入spring-boot-start-mail
SpringBoot 自动配置MailSenderAutoConfiguration
定义MailProperties内容，配置在application.yml中
自动装配JavaMailSender
测试邮件发送

测试：

1、引入pom依赖

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

看它引入的依赖，可以看到 jakarta.mail

<dependency><groupId>com.sun.mail</groupId><artifactId>jakarta.mail</artifactId><version>1.6.4</version><scope>compile</scope>
</dependency>

2、查看自动配置类：MailSenderAutoConfiguration

这个类中存在bean，JavaMailSenderImpl

然后我们去看下配置文件

@ConfigurationProperties(prefix = "spring.mail"
)
public class MailProperties {private static final Charset DEFAULT_CHARSET;private String host;private Integer port;private String username;private String password;private String protocol = "smtp";private Charset defaultEncoding;private Map<String, String> properties;private String jndiName;
}

3、配置文件：

spring.mail.username=24736743@qq.com
spring.mail.password=你的qq授权码
spring.mail.host=smtp.qq.com
# qq需要配置ssl
spring.mail.properties.mail.smtp.ssl.enable=true

获取授权码：在QQ邮箱中的设置->账户->开启pop3和smtp服务

4、Spring单元测试

@Autowired
JavaMailSenderImpl mailSender;@Test
public void contextLoads() {//邮件设置1：一个简单的邮件SimpleMailMessage message = new SimpleMailMessage();message.setSubject("通知-明天来狂神这听课");message.setText("今晚7:30开会");message.setTo("24736743@qq.com");message.setFrom("24736743@qq.com");mailSender.send(message);
}@Test
public void contextLoads2() throws MessagingException {//邮件设置2：一个复杂的邮件MimeMessage mimeMessage = mailSender.createMimeMessage();MimeMessageHelper helper = new MimeMessageHelper(mimeMessage, true);helper.setSubject("通知-明天来狂神这听课");helper.setText("<b style='color:red'>今天 7:30来开会</b>",true);//发送附件helper.addAttachment("1.jpg",new File(""));helper.addAttachment("2.jpg",new File(""));helper.setTo("24736743@qq.com");helper.setFrom("24736743@qq.com");mailSender.send(mimeMessage);
}