SpringBoot使用@Async注解实现异步调用

import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
@Service
public class MyService {
    @Async
    public void performAsyncTask() {
        // 异步任务的逻辑
        // 这个方法将在一个单独的线程中执行
    }
}

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableAsync;
@SpringBootApplication
@EnableAsync
public class MyApplication {
    public static void main(String[] args) {
        SpringApplication.run(MyApplication.class, args);
    }
}

<dependencies>
    <!-- 其他依赖... -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
    </dependency>
</dependencies>

import org.springframework.scheduling.annotation.Async;
import org.springframework.stereotype.Service;
@Service
public class EmailService {
    @Async
    public void sendEmail(String to, String subject, String content) {
        // 模拟发送电子邮件的操作，这里可以是实际的邮件发送逻辑
        System.out.println("Sending email to: " + to);
        System.out.println("Subject: " + subject);
        System.out.println("Content: " + content);
        try {
            Thread.sleep(3000); // 模拟邮件发送过程
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("Email sent successfully.");
    }
}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
public class MyController {
    private final EmailService emailService;
    @Autowired
    public MyController(EmailService emailService) {
        this.emailService = emailService;
    }
    @GetMapping("/send-email")
    public String sendEmail() {
        emailService.sendEmail("recipient@example.com", "Test Email", "This is a test email content.");
        return "Email sending process has started.";
    }
}