Springboot整合mail

Spring Boot可以很方便地实现邮件发送功能，下面是整合Spring Boot和Java Mail的步骤：

1. 添加依赖：在`pom.xml`文件中添加以下依赖：

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

2. 配置邮件发送信息：在`application.properties`文件中配置邮件发送的相关信息，例如：

spring.mail.host=smtp.example.com
spring.mail.port=587
spring.mail.username=your-email@example.com
spring.mail.password=your-password
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true

3. 创建邮件发送服务：创建一个邮件发送服务类，例如`MailService`，并注入`JavaMailSender`：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.stereotype.Service;

@Service
public class MailService {

    @Autowired
    private JavaMailSender javaMailSender;

    public void sendEmail(String to, String subject, String content) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);
        javaMailSender.send(message);
    }
}

4. 使用邮件发送服务：在需要发送邮件的地方，注入`MailService`并调用`sendEmail`方法来发送邮件：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class EmailController {

    @Autowired
    private MailService mailService;

    @RequestMapping("/sendEmail")
    public String sendEmail() {
        String to = "recipient@example.com";
        String subject = "Test Email";
        String content = "This is a test email.";
        mailService.sendEmail(to, subject, content);
        return "Email sent successfully";
    }
}

这样，当访问`/sendEmail`接口时，就会发送一封测试邮件到指定的收件人邮箱。

以上就是Spring Boot整合Java Mail实现邮件发送的基本步骤。你可以根据自己的需求进一步定制邮件内容、添加附件等功能。