java 升级到 springframework.scheduling.concurrent？

Upgrading to springframework.scheduling.concurrent?

提问by Rihards

As of Spring 3.0 the ScheduledTimerTask is deprecated and I can't understand how to upgrade to org.springframework.scheduling.concurrent.

从 Spring 3.0 开始，不推荐使用 ScheduledTimerTask，我无法理解如何升级到 org.springframework.scheduling.concurrent。

    <bean id="timerFactoryBean" class="org.springframework.scheduling.timer.TimerFactoryBean">
        <property name="scheduledTimerTasks">
            <list>
                 <ref bean="onlineTimeSchedule" />
            </list>
            </property>
    </bean>

    <bean id="onlineTimeSchedule" class="org.springframework.scheduling.timer.ScheduledTimerTask">
        <property name="timerTask" class="com.example.OnlineTimerTask" />
        </property>
        <property name="period" value="60000" />
        <property name="delay" value="1000" />
    </bean>

Where the OnlineTimerTask extends java.util.TimerTask. It's simple task which publishes a message to publisher every minute. I checked the documentation, but nothing.. I can't understand which way to use from the concurrent package and which suits the best.

其中 OnlineTimerTask 扩展了 java.util.TimerTask。这是每分钟向发布者发布一条消息的简单任务。我检查了文档，但什么也没有。我无法理解从并发包中使用哪种方式以及哪种方式最适合。

Also I want to turn this xml into @Bean in Java.

另外我想把这个xml变成Java中的@Bean。

EDIT:So I tried to implement the xml with @Bean and @Configuration instead and here is what I got.

编辑：所以我尝试用@Bean 和@Configuration 来实现xml，这就是我得到的。

@Configuration
public class ContextConfiguration {
    @Bean
    public ScheduledExecutorFactoryBean scheduledExecutorFactoryBean() {
        ScheduledExecutorFactoryBean scheduledFactoryBean = new ScheduledExecutorFactoryBean();
        scheduledFactoryBean.setScheduledExecutorTasks(new ScheduledExecutorTask[] {onlineTimeSchedule()});

        return scheduledFactoryBean;
    }

    @Bean
    public ScheduledExecutorTask onlineTimeSchedule() {
        ScheduledExecutorTask scheduledTask = new ScheduledExecutorTask();
        scheduledTask.setDelay(1000);
        scheduledTask.setPeriod(60000);
        scheduledTask.setRunnable(new OnlineTimerTask());

        return scheduledTask;
    }
}

Will the code above be correct replacement for xml? Will in my case the setScheduledExecutorTasks work properly? I mean will the referencing to the same bean instance, if onlineTimeSchedule() is called more than once, will work here?

上面的代码是否可以正确替换 xml？在我的情况下 setScheduledExecutorTasks 会正常工作吗？我的意思是，如果 onlineTimeSchedule() 被多次调用，对同一个 bean 实例的引用会在这里工作吗？

scheduledFactoryBean.setScheduledExecutorTasks(new ScheduledExecutorTask[] {onlineTimeSchedule()});

回答by Brent Worden

Use org.springframework.scheduling.concurrent.ScheduledExecutorFactoryBeanin place of org.springframework.scheduling.timer.TimerFactoryBeanand use org.springframework.scheduling.concurrent.ScheduledExecutorTaskin place of org.springframework.scheduling.timer.ScheduledTimerTask. You will need to adjust the property names and values as needed but, that should be pretty self evident.

使用org.springframework.scheduling.concurrent.ScheduledExecutorFactoryBean替代org.springframework.scheduling.timer.TimerFactoryBean和使用org.springframework.scheduling.concurrent.ScheduledExecutorTask到位org.springframework.scheduling.timer.ScheduledTimerTask。您需要根据需要调整属性名称和值，但这应该是不言而喻的。

Optionally, you could refactor your com.example.OnlineTimerTaskto not extend java.util.TimeTaskas the ScheduledTimerTask only requires a runnable.

或者，您可以重构您com.example.OnlineTimerTask的不扩展，java.util.TimeTask因为 ScheduledTimerTask 只需要一个可运行的。

回答by Balu Gulla

Spring 4 configuration - Below configuration working after spring migration from 3.2.x to 4.6.x

Spring 4 配置 - 在从 3.2.x 到 4.6.x 的 spring 迁移后，下面的配置工作

<bean id="schedulerTask"
        class="org.springframework.scheduling.support.MethodInvokingRunnable">
        <property name="targetObject" ref="springJmsListnerContainer" />
        <property name="targetMethod" value="execute" />
    </bean>
    <bean id="timerTask" class="org.springframework.scheduling.concurrent.ScheduledExecutorTask">
        <property name="runnable" ref="schedulerTask" />
        <property name="delay" value="100" />
        <property name="period" value="60000" />
    </bean>
    <bean class="org.springframework.scheduling.concurrent.ScheduledExecutorFactoryBean">
        <property name="scheduledExecutorTasks">
            <list>
                <ref bean="timerTask" />
            </list>
        </property>
    </bean>

回答by Aman

The answer is - add one "runnable" field

答案是——添加一个“可运行”字段

 <bean id="scheduledExecutorTask" 
    class="org.springframework.scheduling.concurrent.ScheduledExecutorTask">
    <!-- wait 10 milli seconds before starting repeated execution -->
    <property name="delay">
        <value>10</value>
    </property>
    <!-- run every 1 second -->
    <property name="period">
        <value>1000</value>
    </property>
    <property name="runnable">
        <ref bean="checkInvokingTask"/>
    </property>
</bean>