Spring @Async 被忽略

使用 Spring 的 @Async 注解可以轻松地实现异步方法调用，提高系统的并发处理能力。然而，有时候我们可能会遇到 @Async 注解被忽略的情况。本文将探讨 @Async 注解被忽略的原因，并提供解决方案来确保 @Async 注解的正常使用。

spring.task.execution.pool.core-size=10
spring.task.execution.pool.max-size=20
spring.task.execution.pool.queue-capacity=1000

java
@Configuration
@EnableAsync
public class AppConfig {
    // 配置类的其他内容...
}

java
@Service
public class UserService {
    // 其他方法...
    
    @Async
    public void sendEmail(String email) {
        // 发送邮件的逻辑...
    }
}

java
@RestController
public class UserController {
    @Autowired
    private UserService userService;
    
    @GetMapping("/sendEmail")
    public String sendEmail(@RequestParam String email) {
        userService.sendEmail(email);
        return "Email sent successfully!";
    }
}

java
@Configuration
@EnableAsync
public class AppConfig {
    // 配置线程池
    @Bean
    public Executor taskExecutor() {
        ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor();
        executor.setCorePoolSize(10);
        executor.setMaxPoolSize(20);
        executor.setQueueCapacity(1000);
        executor.setThreadNamePrefix("Async-");
        executor.initialize();
        return executor;
    }
}
@Service
public class UserService {
    @Async
    public void sendEmail(String email) {
        // 发送邮件的逻辑...
        System.out.println("Sending email to " + email);
        // 模拟耗时操作
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println("Email sent successfully!");
    }
}
@RestController
public class UserController {
    @Autowired
    private UserService userService;
    
    @GetMapping("/sendEmail")
    public String sendEmail(@RequestParam String email) {
        userService.sendEmail(email);
        return "Email sent successfully!";
    }
}