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JAVA使用quartz添加定時任務(wù),并依賴注入對象操作

更新時間：2020年09月25日 14:24:15 作者：你是格林我是童話

這篇文章主要介紹了JAVA使用quartz添加定時任務(wù),并依賴注入對象操作，具有很好的參考價值，希望對大家有所幫助。一起跟隨小編過來看看吧

最近在寫定時任務(wù)，以前沒接觸過。查了些相關(guān)資料說使用quartz定時框架。

需要配置文件：config-quartz.xml

相關(guān)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 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(wù)：

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(fā)現(xiàn)時間可以打印出來，證明定時任務(wù)成功開啟；但是同時也發(fā)現(xiàn)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(dǎo)致注解失敗，后來查了相關(guān)資料發(fā)現(xiàn)，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(dǎo)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(diào)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 id="jobFactory" class="com.wy.care60.job.MyJobFactory"></bean>

然后在把org.springframework.scheduling.quartz.SchedulerFactoryBean的jobFactory設(shè)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 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！

以上這篇JAVA使用quartz添加定時任務(wù),并依賴注入對象操作就是小編分享給大家的全部內(nèi)容了，希望能給大家一個參考，也希望大家多多支持腳本之家。

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