JAVA使用quartz添加定時任務,并依賴注入對象操作
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。
需要配置文件：config-quartz.xml
相關配置如下（紅色部分是之后添加的，在后面步驟會說明）：
<?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 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 = WrhFrameSchedulerorg.quartz.scheduler.instanceId = AUTO org.quartz.scheduler.skipUpdateCheck = true #============================================================================# Configure ThreadPool #============================================================================ org.quartz.threadPool.class = org.quartz.simpl.SimpleThreadPoolorg.quartz.threadPool.threadCount = 12org.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
最后spring-mvc.xml配置文件中獎quartz.xml文件引入即可：
<import resource='config-quartz.xml'></import>
然后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. */@Componentpublic class HealthPlanJob extends QuartzJobBean { @Autowired MProjectMapper mProjectMapper; @Override public void executeInternal(JobExecutionContext jobExecutionContext) throws JobExecutionException { System.out.println(new Date()); } }
發(fā)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(fā)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，導致注解失敗，后來查了相關資料發(fā)現，不是Spring的原因，而是因為：這個Job是由quartz實例化出來的，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實例化這個類，代碼如下
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 { //調用父類的方法 Object jobInstance = super.createJobInstance(bundle); capableBeanFactory.autowireBean(jobInstance); return jobInstance; } }
然后把這個類配置到Spring中去，（config-quartz.xml中紅色部分）
<bean class='com.wy.care60.job.MyJobFactory'></bean>
然后在把org.springframework.scheduling.quartz.SchedulerFactoryBean的jobFactory設置成我們自己的。（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 class='com.wy.care60.job.MyJobFactory'></bean> <bean 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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