Spring TimerFactoryBean如何启动计时器任务

时间:2014-03-27 00:00:04

标签: java spring timer timertask

我想通过spring.xml设置计时器任务,并且只要加载了applicationContext,计时器就应该启动。

我正在阅读Spring的这个教程:http://docs.spring.io/spring/docs/3.0.x/spring-framework-reference/html/scheduling.html

但我没有找到有关弹簧如何开始计时器开始执行的任何信息。例如,使用Timer类我们可以说:new Timer(new Task).schedule()然后它会立即开始执行任务,如何使用以下配置?

public class CheckEmailAddresses extends TimerTask {

  private List emailAddresses;

  public void setEmailAddresses(List emailAddresses) {
    this.emailAddresses = emailAddresses;
  }

  public void run() {
    // iterate over all email addresses and archive them
  }
}

Spring配置:

<bean id="checkEmail" class="examples.CheckEmailAddress">
    <property name="emailAddresses">
        <list>
            <value>test@springframework.org</value>
            <value>foo@bar.com</value>
            <value>john@doe.net</value>
        </list>
    </property>
</bean>
<bean id="scheduledTask" class="org.springframework.scheduling.timer.ScheduledTimerTask">
    <!-- wait 10 seconds before starting repeated execution -->
    <property name="delay" value="10000" />
    <!-- run every 50 seconds -->
    <property name="period" value="50000" />
    <property name="timerTask" ref="checkEmail" />
</bean>
<bean id="timerFactory" class="org.springframework.scheduling.timer.TimerFactoryBean">
    <property name="scheduledTimerTasks">
        <list>
            <!-- see the example above -->
            <ref bean="scheduledTask" />
        </list>
    </property>
</bean>

1 个答案:

答案 0 :(得分:1)

org.springframework.scheduling.timer.TimerFactoryBean将在初始化应用程序上下文后设置计时器。

使用来源Luke:http://grepcode.com/file/repo1.maven.org/maven2/org.springframework/spring-context/2.5.3/org/springframework/scheduling/timer/TimerFactoryBean.java#TimerFactoryBean.afterPropertiesSet%28%29