job

     <bean id="officeJob" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        <property name="targetObject">
            <ref bean="surveyService"/>
        </property>
        <property name="targetMethod">
            <value>removeOldFiles</value>
        </property>
    </bean>
    <bean id="officeTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean">
        <property name="jobDetail">
            <ref bean="officeJob"/>
        </property>
        <property name="cronExpression">
            <value>0 0 * ? * *</value>
        </property>
    </bean>
    <bean id="startQuertz" lazy-init="false" autowire="no" class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="triggers">
            <list>
                <ref bean="endCollectSurveyTrigger"/>
                <ref bean="officeTrigger"/>
            </list>
        </property>

    </bean>

http://f51889920.iteye.com/blog/1884810

http://blog.csdn.net/huangaigang6688/article/details/9015439