代码示例

package com.example.demo.config;import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.Scheduled;import java.text.SimpleDateFormat;
import java.time.LocalDateTime;/*** 定时任务* https://blog.csdn.net/enthan809882/article/details/103742811*/
@Configuration
@EnableScheduling
public class ScheduleConfiguration {/*** 间隔执行，启动的时候就会执行一次*/@Scheduled(fixedDelay = 1000 * 5) //  5秒public void fixedTask() {System.out.println("fixedTask: " + LocalDateTime.now());// 执行日志// fixedTask: 2023-01-16T18:07:12.526// fixedTask: 2023-01-16T18:07:17.531// fixedTask: 2023-01-16T18:07:22.533// fixedTask: 2023-01-16T18:07:27.535}/*** 定时执行 秒 分 时 日 月 周*/@Scheduled(cron = "*/5 * * * * *")  // 间隔5秒public void cronTask() {System.out.println("cronTask: " + LocalDateTime.now());// 执行日志// cronTask: 2023-01-16T18:06:15.005// cronTask: 2023-01-16T18:06:20.004// cronTask: 2023-01-16T18:06:25.005// cronTask: 2023-01-16T18:06:30.005}
}

完整代码：https://mouday.github.io/spring-boot-demo/#/SpringBoot-Schedule/README