Spring整合Quartz

Spring整合Quartz有两种方式：

一是通过Spring的JobDetailBean
JobDetailBean的配置如下

<bean name="exampleJob" class="org.springframework.scheduling.quartz.JobDetailBean">
  <property name="jobClass" value="example.ExampleJob" />
  <property name="jobDataAsMap">
    <map>
      <entry key="timeout" value="5" />
    </map>
  </property>
</bean>

 其中jobClass的Value值指向自己所写的job类，此类必须继承Spring的QuartzJobBean，并重写executeInternal方法，jobDataAsMap中注入的值，即为在executeInternal方法中通过context.getMergedJobDataMap().get方法获得的值。
example.ExampleJob的代码如下

package example;

import org.quartz.JobExecutionContext;
import org.quartz.JobExecutionException;
import org.springframework.scheduling.quartz.QuartzJobBean;

public class ExampleJob extends QuartzJobBean {

//	private int timeout;

	/**
	 * Setter called after the ExampleJob is instantiated with the value from
	 * the JobDetailBean (5)
	 */
//	public void setTimeout(int timeout) {
//		this.timeout = timeout;
//	}

	@Override
	protected void executeInternal(JobExecutionContext context)
			throws JobExecutionException {
		System.out.println(context.getMergedJobDataMap().get("out"));
		System.out.println("executeInternal ............");
	}

}

 二是通过MethodInvokingJobDetailFactoryBean
MethodInvokingJobDetailFactoryBean的配置如下

<bean id="jobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
  <property name="targetObject" ref="exampleBusinessObject" />
  <property name="targetMethod" value="doIt" />
</bean>

 targetObject所注入的即为自己所写的job类，此类可以是普通的java类，不需继承或实现任何接口。targetMethod的值即为job类的内部方法
exampleBusinessObject的代码如下

package example;

public class ExampleBusinessObject {

	// properties and collaborators

	public void doIt() {
		System.out.println("do it ..............");
		// do the actual work
	}
}

 无论是通过上面哪一种方法，都必须为他们建立自己的触发器Trigger，Spring中提供了两种触发器，CronTriggerBean，SimpleTriggerBean，具体可以自由选择用哪种。
两种方式的配置如下

<bean id="simpleTrigger" class="org.springframework.scheduling.quartz.SimpleTriggerBean">
    <!-- see the example of method invoking job above -->
    <property name="jobDetail" ref="jobDetail" />
    <!-- 10 seconds -->
    <property name="startDelay" value="10000" />
    <!-- repeat every 50 seconds -->
    <property name="repeatInterval" value="50000" />
</bean>

<bean id="cronTrigger" class="org.springframework.scheduling.quartz.CronTriggerBean">
    <property name="jobDetail" ref="exampleJob" />
    <!-- run every morning at 6 AM -->
    <property name="cronExpression" value="0 0 6 * * ?" />
</bean>

 最后，关键的一步，把上面配置好的触发器注入到SchedulerFactoryBean中去
配置文件如下

<bean class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
    <property name="triggers">
        <list>
            <ref bean="cronTrigger" />
            <ref bean="simpleTrigger" />
        </list>
    </property>
</bean>

  好了，Spring的中的定时任务已经配置好了，现在可以去你的job类里为所欲为了！

ps：Spring的版本的和Quartz的版本问题需要注意，spring 3.X的可以用Quartz2.x，spring2.x的就只能用Quartz1.x的了！切记。。。