因專案需要，幾個定時任務需要人為動態設定執行時間，於是乎吧，就查閱相關資料，是可以動態設定的，廢話不多說，直接上程式碼，一目瞭然。

package com.seckill.quartz;

import org.springframework.scheduling.Trigger;
import org.springframework.scheduling.TriggerContext;
import org.springframework.scheduling.annotation.EnableScheduling;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;
import org.springframework.scheduling.support.CronTrigger;
import org.springframework.stereotype.Component;

import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * Created by loup on 2017/11/11.
 */
@Component
@EnableScheduling
public class DynamicScheduledTask implements SchedulingConfigurer {

    //時間表達式  每2秒執行一次
    private String cron = "0/2 * * * * ?";

    private SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");

    @Override
    public void configureTasks(ScheduledTaskRegistrar scheduledTaskRegistrar) {
        scheduledTaskRegistrar.addTriggerTask(new Runnable() {
            @Override
            public void run() {
                //任務邏輯
                System.out.println("---------------start-------------------");
                System.out.println("動態修改定時任務引數，時間表達式cron為：" + cron);
                System.out.println("當前時間為：" + sdf.format(new Date()));
                System.out.println("----------------end--------------------");
            }
        }, new Trigger() {
            @Override
            public Date nextExecutionTime(TriggerContext triggerContext) {
                CronTrigger cronTrigger = new CronTrigger(cron);
                Date nextExecDate = cronTrigger.nextExecutionTime(triggerContext);
                return nextExecDate;
            }
        });
    }

    public void setCron(String cron) {
        this.cron = cron;
    }
}
 

http://www.springframework.org/schema/task

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:task="http://www.springframework.org/schema/task"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans.xsd
        http://www.springframework.org/schema/task
        http://www.springframework.org/schema/task/spring-task.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.seckill.quartz"/>

    <task:annotation-driven />

</beans>
 

package com.seckill.quartz;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

import java.io.IOException;

/**
 * Created by loup on 2017/11/11.
 */
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({"classpath*:/conf/spring-quartz.xml"})
public class QuartzTest {

    @Autowired
    private DynamicScheduledTask dynamicScheduledTask;

    @Test
    public void test1(){
        try {
            Thread.sleep(10000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        dynamicScheduledTask.setCron("0/10 * * * * ?");
        try {
            System.in.read();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}