JAVA使用quartz添加定时任务，并依赖注入对象

最近在写定时任务，以前没接触过。查了些相关资料说使用quartz定时框架。

需要配置文件：config-quartz.xml

相关配置如下（红色部分是之后添加的，在后面步骤会说明）：

<?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 = WrhFrameSchedulerorg.quartz.scheduler.instanceId = AUTOorg.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 = 60000org.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配置文件中奖quartz.xml文件引入即可：

 <import resource="config-quartz.xml"></import>

然后写测试类开始测试定时任务：

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());            }}

发现时间可以打印出来，证明定时任务成功开启；但是同时也发现了一个问题，就是依赖注入的mProjectMapper值为null。

开始以为是Spring的原因，导致注解失败，后来查了相关资料发现，不是Spring的原因，而是因为：这个Job是由quartz实例化出来的，不受Spring的管理，所以就导致注入失败。解决办法是自己new一个类，让Spring实例化这个类，代码如下

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 {        //调用父类的方法        Object jobInstance = super.createJobInstance(bundle);        capableBeanFactory.autowireBean(jobInstance);        return jobInstance;    }}

然后把这个类配置到Spring中去，（config-quartz.xml中红色部分）

<bean id="jobFactory" class="com.wy.care60.job.MyJobFactory"></bean>

然后在把org.springframework.scheduling.quartz.SchedulerFactoryBean的jobFactory设置成我们自己的。（config-quartz.xml中红色部分）

<bean name="MyScheduler" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">　　<!-- 其他属性省略 -->　　<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>

到这为止，成功！

时间比较急，随便写写记录一下。