JAVA使用quartz新增定時任務,並依賴注入物件操作
阿新 • • 發佈:2020-09-27
最近在寫定時任務,以前沒接觸過。查了些相關資料說使用quartz定時框架。
需要配置檔案:config-quartz.xml
相關配置如下(紅色部分是之後新增的,在後面步驟會說明):
<?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:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd"> <bean id="scheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> <property name="schedulerName" value="rqmis"></property> <property name="applicationContextSchedulerContextKey" value="applicationContextKey" /> <property name="configLocation" value="classpath:quartz.properties" /> <property name="autoStartup" value="true"></property> <property name="triggers"> <list> <bean class="org.springframework.scheduling.quartz.CronTriggerFactoryBean"> <property name="cronExpression" value="0 0 0 * * ?"></property> <property name="jobDetail"> <bean class="org.springframework.scheduling.quartz.JobDetailFactoryBean"> <property name="jobClass" value="com.wy.care60.job.HealthPlanJob" /> </bean> </property> </bean> </list> </property> </bean> <!--</property> </bean>--> </beans>
quartz.properties
#============================================================================ # Configure Main Scheduler Properties #============================================================================ org.quartz.scheduler.instanceName = WrhFrameScheduler org.quartz.scheduler.instanceId = AUTO org.quartz.scheduler.skipUpdateCheck = true #============================================================================ # Configure ThreadPool #============================================================================ org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPool org.quartz.threadPool.threadCount = 12 org.quartz.threadPool.threadPriority = 5 #============================================================================ # Configure JobStore #============================================================================ org.quartz.jobStore.misfireThreshold = 60000 org.quartz.jobStore.class = org.quartz.simpl.RAMJobStore #org.quartz.jobStore.class = org.quartz.impl.jdbcjobstore.JobStoreTX #org.quartz.jobStore.driverDelegateClass = org.quartz.impl.jdbcjobstore.PostgreSQLDelegate #org.quartz.jobStore.useProperties = false #org.quartz.jobStore.dataSource = myDS #org.quartz.jobStore.tablePrefix = QRTZ_ #org.quartz.jobStore.isClustered = false #============================================================================ # Configure Datasources #============================================================================ #org.quartz.dataSource.myDS.driver = org.postgresql.Driver #org.quartz.dataSource.myDS.URL = jdbc:postgresql://localhost/dev #org.quartz.dataSource.myDS.user = jhouse #org.quartz.dataSource.myDS.password = #org.quartz.dataSource.myDS.maxConnections = 5
最後spring-mvc.xml配置檔案中獎quartz.xml檔案引入即可:
<import resource="config-quartz.xml"></import>
然後寫測試類開始測試定時任務:
package com.wy.care60.job; import com.wy.care60.dao.MElementMapper; import com.wy.care60.dao.MInterEnumMapper; import com.wy.care60.dao.MProjectMapper; import com.wy.care60.model.MInterEnum; import com.wy.care60.model.MProject; import org.apache.tools.ant.Project; import org.quartz.JobExecutionContext; import org.quartz.JobExecutionException; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.scheduling.quartz.QuartzJobBean; import org.springframework.stereotype.Component; import javax.annotation.Resource; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; import java.util.List; /** * Created by Administrator on 2017/12/20. */ @Component public class HealthPlanJob extends QuartzJobBean { @Autowired MProjectMapper mProjectMapper; @Override public void executeInternal(JobExecutionContext jobExecutionContext) throws JobExecutionException { System.out.println(new Date()); } }
發現時間可以打印出來,證明定時任務成功開啟;但是同時也發現了一個問題,就是依賴注入的 mProjectMapper值為null。
開始以為是Spring的原因,導致註解失敗,後來查了相關資料發現,不是Spring的原因,而是因為:這個Job是由quartz例項化出來的,不受Spring的管理,所以就導致注入失敗。解決辦法是自己new一個類,讓Spring例項化這個類,程式碼如下
import org.quartz.spi.TriggerFiredBundle; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.beans.factory.config.AutowireCapableBeanFactory; import org.springframework.scheduling.quartz.AdaptableJobFactory; public class MyJobFactory extends AdaptableJobFactory { @Autowired private AutowireCapableBeanFactory capableBeanFactory; protected Object createJobInstance(TriggerFiredBundle bundle) throws Exception { //呼叫父類的方法 Object jobInstance = super.createJobInstance(bundle); capableBeanFactory.autowireBean(jobInstance); return jobInstance; } }
然後把這個類配置到Spring中去,(config-quartz.xml中紅色部分)
<bean id="jobFactory" class="com.wy.care60.job.MyJobFactory"></bean>
然後在把org.springframework.scheduling.quartz.SchedulerFactoryBean的jobFactory設定成我們自己的。(config-quartz.xml中紅色部分)
<bean name="MyScheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> <!-- 其他屬性省略 --> <property name="jobFactory" ref="jobFactory"></property> </bean>
config-quartz.xml完整版如下:
<?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:context="http://www.springframework.org/schema/context" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd"> <bean id="jobFactory" class="com.wy.care60.job.MyJobFactory"></bean> <bean id="scheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean"> <property name="schedulerName" value="rqmis"></property> <property name="applicationContextSchedulerContextKey" value="applicationContextKey" /> <property name="configLocation" value="classpath:quartz.properties" /> <property name="autoStartup" value="true"></property> <property name="jobFactory" ref="jobFactory"></property> <property name="triggers"> <list> <bean class="org.springframework.scheduling.quartz.CronTriggerFactoryBean"> <property name="cronExpression" value="0 0 0 * * ?"></property> <property name="jobDetail"> <bean class="org.springframework.scheduling.quartz.JobDetailFactoryBean"> <property name="jobClass" value="com.wy.care60.job.HealthPlanJob" /> </bean> </property> </bean> </list> </property> </bean> <!--</property> </bean>--> </beans>
到這為止,成功!
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