从零搭建开发脚手架 Spring Boot实现邮件功能

以下是一个使用Spring Boot实现发送邮件功能的简单示例：

1. 首先，在pom.xml中添加Spring Boot邮件发送所需依赖：

<dependencies>
    <!-- Spring Boot Starter for Mail -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-mail</artifactId>
    </dependency>
 
    <!-- Spring Boot Starter for Web (如果需要Web接口) -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
    </dependency>
</dependencies>

2. 在application.properties或application.yml中配置邮件服务器的信息：

spring.mail.host=smtp.example.com
spring.mail.port=587
spring.mail.username=your_username
spring.mail.password=your_password
spring.mail.properties.mail.smtp.auth=true
spring.mail.properties.mail.smtp.starttls.enable=true

3. 创建一个邮件服务类：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.mail.javamail.JavaMailSender;
import org.springframework.mail.SimpleMailMessage;
import org.springframework.stereotype.Service;
 
@Service
public class EmailService {
 
    private final JavaMailSender mailSender;
 
    @Autowired
    public EmailService(JavaMailSender mailSender) {
        this.mailSender = mailSender;
    }
 
    public void sendSimpleMail(String to, String subject, String content) {
        SimpleMailMessage message = new SimpleMailMessage();
        message.setTo(to);
        message.setSubject(subject);
        message.setText(content);
        mailSender.send(message);
    }
}

4. 创建一个REST控制器来提供发送邮件的接口：

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;
 
@RestController
public class EmailController {
 
    private final EmailService emailService;
 
    @Autowired
    public EmailController(EmailService emailService) {
        this.emailService = emailService;
    }
 
    @PostMapping("/send-email")
    public String sendEmail(@RequestParam String to, @RequestParam String subject, @RequestParam String content) {
        emailService.sendSimpleMail(to, subject, content);
        return "Email sent successfully!";
    }
}

5. 最后，创建Spring Boot应用类：

import org.springframework.boot.SpringAp