第一步 配置启动类

在spring boot的启动类上加@EnableScheduling注解，允许支持@Scheduled：

@EnableScheduling// 允许支持@Scheduled,开启定时任务功能publicclassYwbpDumpRestApplicationextendsSpringBootServletInitializer{publicstaticvoidmain(String[] args){
        SpringApplication.run(YwbpDumpRestApplication.class, args);}@Overrideprotected SpringApplicationBuilderconfigure(SpringApplicationBuilder application){return application.sources(YwbpDumpRestApplication.class);}}

第二步 添加定时任务注解

在方法上加上@Scheduled注解,来定时执行方法体

@ComponentpublicclassScheduleTask{// 每隔5秒执行一次@Scheduled(cron="0/5 * * * * ?")publicvoidprintSay(){
        System.out.println("每隔5秒执行一次："+newDate());}}