Spring中使用Quartz的两种方式

做业类是否继承QuartzJobBean

• 继承
• 不继承

不继承QuartzJobBean，声明JobDetail时，使用MethodInvokingJobDetailFactoryBean

继承QuartzJobBean，声明JobDetail时，使用JobDetailFactoryBean

任务调度的触发时机

• 每隔指定时间触发一次：触发器使用SimpleTriggerBean
• 每到指定时间触发一次：触发器使用CronTriggerBean

这两种触发方式均可以和两种做业继承方式相互组合来使用。

也就是有四种写法。

举个例子：

不继承QuartzJobBean，由SimpleTriggerBean触发

<bean id="simpleJobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        <property name="targetObject" ref="myBean"/>
        <property name="targetMethod" value="printMessage"/>
    </bean>


<!-- Run the job every 2 seconds with initial delay of 1 second -->
    <bean id="simpleTrigger" class="org.springframework.scheduling.quartz.SimpleTriggerFactoryBean">
        <property name="jobDetail" ref="simpleJobDetail"/>
        <property name="startDelay" value="1000"/>
        <property name="repeatInterval" value="2000"/>
    </bean>

public class MyBean {

    public void printMessage(){
        System.out.println("不继承QuartzJobBean的做业类。called by MethodInvokingJobDetailFactoryBean using SimpleTriggerFactoryBean");
    }
}

不继承QuartzJobBean，由CronTriggerBean触发

继承QuartzJobBean，由SimpleTirggerBean触发

继承QuartzJobBean，由CronTriggerBean触发

public class ScheduledJob extends QuartzJobBean {

    private AnotherBean anotherBean;

    protected void executeInternal(JobExecutionContext jobExecutionContext) throws JobExecutionException {
        anotherBean.printMessage();
    }

    public void setAnotherBean(AnotherBean anotherBean) {
        this.anotherBean = anotherBean;
    }
}

public class AnotherBean {
    public void printMessage(){
        System.out.println("继承QuartzJobBean的做业类，经过AnotherBean传递数据。called by JobDetailFactoryBean using CronTriggerFactoryBean");
    }
}

<!-- For times when you need more complex processing, passing data to the scheduled job -->
    <bean name="complexJobDetail" class="org.springframework.scheduling.quartz.JobDetailFactoryBean">
        <property name="jobClass" value="com.penelope.quickstart.jobs.ScheduledJob"/>
        <property name="jobDataAsMap">
            <map>
                <entry key="anotherBean" value-ref="anotherBean"/>
            </map>
        </property>
        <property name="durability" value="true"/>
    </bean>


<!-- Run the job every 5 seconds only on Weekends -->
    <bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">
        <property name="jobDetail" ref="complexJobDetail"/>
        <property name="cronExpression" value="0/5 * * ? * SAT-SUN"/>
    </bean>

第二个例子是复杂的，在任务类中调用另外一个Bean的方法。另外一个Bean就是该做业类的JobData。使用jobDataAsMap属性，在JobDetail中声明。

小菜虫使用jobDataMap属性传递AnotherBean失败，缘由不明。。。往后填坑。