邮件任务

1.引入pom依赖

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

2.查看自动配置类：MailSenderAutoConfiguration

进入这个类，发现这个类中没有注册的bean，但这个类上有注解@Import，导入了两个类

MailSenderJndiConfiguration.class和MailSenderPropertiesConfiguration

Enter查看—->MailSenderJndiConfiguration.class后发现，该类里面有一个bean：JavaMailSenderImpl

该类里面还有一个配置文件，查看一下：

@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;
}

因此我们可以配置文件：

spring.mail.username=1294566108@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

注意：

qq授权码的获取需要在qq邮箱中的：设置->账户->开启pop3和smtp服务

3.测试一下

@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-明天到工一开会");
   message.setText("星期五7:30开会");
   message.setTo("1294566108@qq.com");
   message.setFrom("1294566108@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-明天到工一开会");
   helper.setText("<b style='color:red'>星期五7:30开会</b>",true);
   //发送附件
   helper.addAttachment("1.jpg",new File(""));
   helper.addAttachment("2.jpg",new File(""));
   helper.setTo("1294566108@qq.com");
   helper.setFrom("1294566108@qq.com");
   mailSender.send(mimeMessage);
}