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198 lines
5.3 KiB
Markdown
198 lines
5.3 KiB
Markdown
# spring boot / cloud (十) 使用quartz搭建调度中心
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##前言
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###quartz介绍:
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>Quartz是OpenSymphony开源组织在Job scheduling领域又一个开源项目，它可以与J2EE与J2SE应用程序相结合也可以单独使用。Quartz可以用来创建简单或为运行十个，百个，甚至是好几万个Jobs这样复杂的程序。Jobs可以做成标准的Java组件或 EJBs。Quartz的最新版本为Quartz 2.3.0
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##思路
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将quartz集成进spring boot,并且提供一下内容:
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- 配置
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- 样例作业和触发器
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##实现
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###1.配置
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引入maven依赖(这里的quartz使用的是2.2.3)
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``` xml
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-context-support</artifactId>
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</dependency>
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<dependency>
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<groupId>org.quartz-scheduler</groupId>
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<artifactId>quartz</artifactId>
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<version>${quartz.version}</version>
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</dependency>
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```
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编写AutowiringSpringBeanJobFactory类
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``` java
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public final class AutowiringSpringBeanJobFactory extends SpringBeanJobFactory
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implements ApplicationContextAware {
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/**
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* 描述 : beanFactory
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*/
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private AutowireCapableBeanFactory beanFactory;
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@Override
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public void setApplicationContext(final ApplicationContext context) {
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beanFactory = context.getAutowireCapableBeanFactory();
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}
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@Override
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protected Object createJobInstance(final TriggerFiredBundle bundle) throws Exception {
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final Object job = super.createJobInstance(bundle);
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beanFactory.autowireBean(job);
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return job;
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}
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}
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```
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编写SchedulerConfig类
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``` java
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@Configuration
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@ConfigurationProperties(prefix = "org.itkk.scheduler.config")
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@Validated
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public class SchedulerConfig {
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..........
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}
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```
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编写SchedulerConfig类-属性
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``` java
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//是否记录日志
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@NotNull
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private Boolean logFlag = true;
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//是否记录详细日志
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@NotNull
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private Boolean logDetailFlag = false;
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//是否自动启动
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@NotNull
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private Boolean autoStartup = true;
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//是否覆盖已经存在的jobs
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@NotNull
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private Boolean overwriteExistingJobs = true;
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//延迟启动秒数
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@NotNull
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private Integer startupDelay = 0;
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//Job接受applicationContext的成员变量名
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@NotNull
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private String applicationContextSchedulerContextKey = "applicationContext";
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//quartz配置文件地址
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@NotNull
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private String quartzPropertiesPath = "def_quartz.properties";
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```
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编写SchedulerConfig类-编写bean
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``` java
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@Bean
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public JobFactory jobFactory(ApplicationContext applicationContext) {
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AutowiringSpringBeanJobFactory jobFactory = new AutowiringSpringBeanJobFactory();
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jobFactory.setApplicationContext(applicationContext);
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return jobFactory;
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}
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@Bean
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public Properties quartzProperties() throws IOException {
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PropertiesFactoryBean propertiesFactoryBean = new PropertiesFactoryBean();
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propertiesFactoryBean.setLocation(new ClassPathResource(getQuartzPropertiesPath()));
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propertiesFactoryBean.afterPropertiesSet();
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return propertiesFactoryBean.getObject();
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}
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@Bean("clusterQuartzScheduler")
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public SchedulerFactoryBean schedulerFactoryBean(DataSource dataSource, JobFactory jobFactory,
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Properties quartzProperties)
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throws IOException {
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//实例化
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SchedulerFactoryBean factory = new SchedulerFactoryBean();
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factory.setDataSource(dataSource);
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factory.setJobFactory(jobFactory);
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//属性设置
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factory.setQuartzProperties(quartzProperties);
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factory.setOverwriteExistingJobs(getOverwriteExistingJobs());
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factory.setAutoStartup(getAutoStartup());
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factory.setStartupDelay(getStartupDelay());
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factory.setApplicationContextSchedulerContextKey(getApplicationContextSchedulerContextKey());
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//返回
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return factory;
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}
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```
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编写def_quartz.properties配置文件
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``` properties
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#Configure scheduler
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org.quartz.scheduler.instanceName=clusterQuartzScheduler
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org.quartz.scheduler.instanceId=AUTO
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org.quartz.scheduler.skipUpdateCheck=true
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#Configure ThreadPool
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org.quartz.threadPool.class=org.quartz.simpl.SimpleThreadPool
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org.quartz.threadPool.threadCount=5
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org.quartz.threadPool.threadPriority=5
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#Configure JobStore and Cluster
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org.quartz.jobStore.class=org.quartz.impl.jdbcjobstore.JobStoreTX
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org.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.StdJDBCDelegate
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org.quartz.jobStore.useProperties=true
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org.quartz.jobStore.tablePrefix=QRTZ_
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org.quartz.jobStore.isClustered=true
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org.quartz.jobStore.clusterCheckinInterval=20000
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org.quartz.jobStore.misfireThreshold=60000
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```
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执行数据库脚本,以及数据库配置(按需,我这里选择的是h2)
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``` properties
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tables_h2.sql
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########################################################
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###DATASOURCE (DataSourceAutoConfiguration & DataSourceProperties)
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########################################################
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spring.datasource.url=jdbc:h2:file:D:/develop/d2_db/testdb
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```
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## **代码仓库** (博客配套代码)
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- [udf-starter : 基础项目,脚手架,框架](https://gitee.com/wangkang/udf)
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- [udf-sample : 集成样例](https://gitee.com/wangkang/udf-sample)
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##结束
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以上演示了quartz在spring boot中的配置,在下一章里会聊一下通过RMS来实现分布式调度的调度器的设计.
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---------
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