解析spring schedule
来源:互联网 发布:linux中复制文件夹命令 编辑:程序博客网 时间:2024/06/11 01:57
Spring在schedule这块支持JDK Timer、concurrent、quartz三种,这三种任务调度方案在实现机制和调用方法上都不同,但spring通过对其包装,使得基于spring能用统一的配置和编码风格来使用这三种schedule方案。
总得来说这三种schedule都是基于scheduler->trigger->job的基本流程,因此spring通过TimerFactoryBean、ScheduledExecutorFactoryBean和SchedulerFactoryBean分别实现JDK Timer、concurrent和quartz的基本流程。主要逻辑如下代码所示:
TimerFactoryBean
- public void afterPropertiesSet() {
- logger.info("Initializing Timer");
- this.timer = createTimer(this.beanName, this.daemon);
- // Register specified ScheduledTimerTasks, if necessary.
- if (!ObjectUtils.isEmpty(this.scheduledTimerTasks)) {
- //注册task和timer registerTasks(this.scheduledTimerTasks, this.timer);
- }
- }
ScheduledExecutorFactoryBean
- public void afterPropertiesSet() {
- if (logger.isInfoEnabled()) {
- logger.info("Initializing ScheduledExecutorService" +
- (this.beanName != null ? " '" + this.beanName + "'" : ""));
- }
- ScheduledExecutorService executor =
- createExecutor(this.poolSize, this.threadFactory, this.rejectedExecutionHandler);
- // Register specified ScheduledExecutorTasks, if necessary.
- if (!ObjectUtils.isEmpty(this.scheduledExecutorTasks)) {
- registerTasks(this.scheduledExecutorTasks, executor);
- }
- // Wrap executor with an unconfigurable decorator.
- this.executor = (this.exposeUnconfigurableExecutor ?
- Executors.unconfigurableScheduledExecutorService(executor) : executor);
- }
SchedulerFactoryBean
- public void afterPropertiesSet() throws Exception {
- .....
- // 初始化sceduler
- initSchedulerFactory(schedulerFactory);
- this.scheduler = createScheduler(schedulerFactory, this.schedulerName);
- //注册listener、trigger和job
- registerListeners();
- registerJobsAndTriggers();
- ......
- //启动scheduler
- startScheduler(this.scheduler, this.startupDelay);
- ......
- }
- }
顺着scheduler->trigger->job的思路,Spring又分别对JDK Timer、concurrent、quartz的trigger进行了封装,暴露出时间调度的配置参数,三种封装类分别为ScheduledTimerTask、ScheduledExecutorTask和CronTriggerBean+SimpleTriggerBean。三种trigger封装类分别根据实现机制的特点暴露出时间调度配置并串联起scheduler和具体job任务
- 解析spring schedule
- 解析spring schedule
- 解析spring schedule
- 解析spring schedule 任务调度
- spring定时任务如何运行 schedule解析
- Spring@Schedule定时任务源码解析
- spring schedule
- Spring在schedule介绍
- spring schedule定时任务
- spring定时任务@schedule
- spring schedule定时任务
- Spring @Schedule Annotation详解
- spring 动态schedule
- Spring 计划任务 Schedule
- shiro spring-schedule security
- spring boot之schedule
- quartz,spring-quartz,spring-task,spring-schedule
- Spring Schedule 任务调度实现
- 软件定义网络(SDN)为网络交换机厂商带来商机
- SQL中datetime和timestamp的区别
- oracle中索引
- 淘宝性能测试要点
- 有趣的 Linux 命令
- 解析spring schedule
- CmdletBindingAttribute之SupportsPaging的作用
- Linux学习笔记一:yum本地源配置和stardict安装
- 架构师的那些事儿
- 黑马程序员_有关.NET的基础知识分享
- android建立NDK项目调用jrtplib与pc机进行通讯
- 分享一些牛人的心得
- hessian源码分析(一)------架构
- SQL Server 2008系统和ADO技术图示分析