简易动态定时任务

Say:

package com.sdkj.demo.schedule;

import java.util.Date;

public class Say implements Runnable {

    @Override
    public void run(){
        System.out.println("" + new Date() + " hello");
    }
}

ScheduleController:

package com.sdkj.demo.controller;

import com.sdkj.demo.schedule.Say;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler;
import org.springframework.scheduling.support.CronTrigger;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

import java.util.Map;
import java.util.concurrent.ScheduledFuture;

@Controller
public class ScheduleController {

    @Autowired
    private ThreadPoolTaskScheduler threadPoolTaskScheduler;

    @Bean
    public ThreadPoolTaskScheduler threadPoolTaskScheduler(){
        return new ThreadPoolTaskScheduler();
    }

    private ScheduledFuture<?> future;

    @PostMapping("/startCron")
    @ResponseBody
    public String startCron(@RequestBody(required = false) Map<String,String> map){
        //threadPoolTaskScheduler.shutdown();
        future = threadPoolTaskScheduler.schedule(new Say(), new CronTrigger(map.get("core")));
        return "开始定时任务";
    }

    @RequestMapping("/stopCron")
    @ResponseBody
    public String stopCron(){
        if(future != null) {
            future.cancel(true);
        }
        return "停止定时任务";
    }

}

post -> http://127.0.0.1:8080/startCron {"core":"0 0/1 * * * ? "}
post -> http://127.0.0.1:8080/stopCron