SpringBoot项目中只执行一次的任务写法实现

import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

@Component
public class MyScheduledTask {

    // 使用@Scheduled注解来配置任务的触发条件
    @Scheduled(fixedDelay = Long.MAX_VALUE) // 用一个非常大的延迟值，确保只执行一次
    public void myTask() {
        // 这里编写你的任务逻辑
        System.out.println("执行只执行一次的任务");
    }
}

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication
@EnableScheduling
public class MyApplication {

    public static void main(String[] args) {
        SpringApplication.run(MyApplication.class, args);
    }
}

import javax.annotation.PostConstruct;
import org.springframework.stereotype.Component;

@Component
public class MyInitTask {

    @PostConstruct
    public void init() {
        // 执行只执行一次的初始化任务
        System.out.println("执行只执行一次的初始化任务");
    }
}

import org.springframework.boot.ApplicationArguments;
import org.springframework.boot.ApplicationRunner;
import org.springframework.stereotype.Component;

@Component
public class MyApplicationRunner implements ApplicationRunner {

    @Override
    public void run(ApplicationArguments args) throws Exception {
        // 执行只执行一次的任务
        System.out.println("执行只执行一次的任务");
    }
}