依赖

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

application.properties

#qq邮箱
#spring.mail.host=smtp.qq.com
#spring.mail.username=2456935718@qq.com
#163邮箱
spring.mail.host=smtp.163.com
spring.mail.username=q975144677@163.com
#授权码
spring.mail.password=163sqm
#spring.mail.properties.mail.smtp.auth.password=163sqm
#spring.mail.port=25
#spring.mail.protocol=smtp
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true
spring.mail.properties.mail.smtp.starttls.required=true

使用

public class EmailServiceImpl implements EmailService{

@Autowired
SpringTemplateEngine springTemplateEngine ;
@Value("spring.mail.username")
String sender;
@Autowired
JavaMailSender mailSender ;

@Override
public boolean sendEmail(Email email)  {
try {
MimeMessage mm = mailSender.createMimeMessage();
MimeMessageHelper helper = new MimeMessageHelper(mm, true);
helper.setFrom(sender);
helper.setTo(email.getReceiveemail());
helper.setSubject(email.getSubject());

//html 转换为 thymeleaf
Context context = new Context();
context.setVariable("email", email);
String text = springTemplateEngine.process(email.getTemplate(), context);
helper.setText(text, true);
mailSender.send(mm);
}catch (Exception e ){
e.printStackTrace();
}
return false;
}
}

email 为 自己封装的类
email.getTemplate() 这里的template 需要在templates中事先写好 对应名字.html

如果不用application.properties 配置的话 ， 可以自己new JavaMailSenderImpl 对象，然后自己配置 如

JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
mailSender.setHost("smtp.qq.com");
//      mailSender.setPort(465);
mailSender.setUsername("2118724165@qq.com");
mailSender.setPassword("");
//加认证机制
Properties javaMailProperties = new Properties();
javaMailProperties.put("mail.smtp.auth", true);
javaMailProperties.put("mail.smtp.starttls.enable", true);
javaMailProperties.put("mail.smtp.timeout", 5000);
mailSender.setJavaMailProperties(javaMailProperties);
//创建邮件内容
SimpleMailMessage message=new SimpleMailMessage();
message.setFrom("2118724165@qq.com");
message.setTo(email);
message.setSubject(subject);
message.setText(msg);
//发送邮件
mailSender.send(message);

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作者：李秀才
来源：CSDN
原文：https://blog.csdn.net/qq_33556185/article/details/51028952
版权声明：本文为博主原创文章，转载请附上博文链接！