liferay调度器-定时任务

最新推荐文章于 2022-04-02 14:05:31 发布

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参考博客:(1)IT人生录，网址：http://www.huqiwen.com/2012/10/22/liferay-6-1-development-study-11-use-scheduler/

(2)步行者，网址 http://blog.youkuaiyun.com/hantiannan/article/details/6739875

（1）在portlet中，自动添加监听器

job任务系统中经常用到，liferay已经集成了Quartz，写job很方便，只需继承MessageListener接口即可。

public class MyMessageListener implements MessageListener{
   @Override
   public void receive(Message message) throws MessageListenerException {

       detailMethod(message);

   }

   //具体方法的实现
   private void detailMethod(Message message) {

   }

在liferay-portlet.xml配置文件中设置启动信息

<scheduler-entry>
<scheduler-event-listener-class>
com.xxx.xxx.MyMessageListener
</scheduler-event-listener-class>
       <trigger>
           <simple>
              <simple-trigger-value>15</simple-trigger-value>
              <time-unit>minute</time-unit>
           </simple>
<!--
<cron>
<cron-trigger-value>0 0 12? * WED</cron-trigger-value>
</cron>
 -->
        </trigger>
</scheduler-entry>

scheduler-event-listener-class：里面的类为第一步里面编写的类

simple-trigger-value：里面为调度周期的数值，time-unit为调度周期的单位。上面的意思为每15分钟执行一次

Time-unit：表示周期的周期可以为：day、hour、minute、second、week这几个单位。

具体形如：

<portlet>
       <portlet-name>182</portlet-name>
       <icon>/html/icons/trash.png</icon>
       <struts-path>trash</struts-path>
       <indexer-class>com.liferay.portlet.trash.util.TrashIndexer</indexer-class>

       <scheduler-entry>
           <scheduler-event-listener-class>com.liferay.mySupport.MyMessageListener1</scheduler-event-listener-class>
           <trigger>
               <simple>
                   <property-key>mybatch.cron.test</property-key>
                   <time-unit>second</time-unit>
               </simple>
           </trigger>
       </scheduler-entry>

       <control-panel-entry-category>site_administration.content</control-panel-entry-category>
       <control-panel-entry-weight>30.0</control-panel-entry-weight>
       <control-panel-entry-class>com.liferay.portlet.trash.TrashControlPanelEntry</control-panel-entry-class>
       <preferences-owned-by-group>true</preferences-owned-by-group>
       <use-default-template>false</use-default-template>
       <scopeable>true</scopeable>
       <private-request-attributes>false</private-request-attributes>
       <private-session-attributes>false</private-session-attributes>
       <header-portlet-css>/html/portlet/document_library/css/main.css</header-portlet-css>
       <header-portlet-css>/html/portlet/message_boards/css/main.css</header-portlet-css>
       <header-portlet-css>/html/portlet/trash/css/main.css</header-portlet-css>
       <css-class-wrapper>portlet-trash</css-class-wrapper>
   </portlet>

对于cron形式：

其中在portal-impl中的portal.properties中
mybatch.cron.test=3

0 0 12? * WED  为每个周二的12点。
seconds, minutes, hours, based on the days； months； on week days； year (optional)

秒  分 时  天；月；周天；年

（2）直接后台调用添加监听器（重要）

portal-impl/src/messaging-misc-spring.xml

中，添加对应的配置：

<?xml version="1.0"?>

<beans
   default-destroy-method="destroy"
   default-init-method="afterPropertiesSet"
   xmlns="http://www.springframework.org/schema/beans"
   xmlns:util="http://www.springframework.org/schema/util"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd"
>

。。。。

    <bean id="destination.task" class="com.liferay.portal.kernel.messaging.SerialDestination">
        <property name="name" value="liferay/task" />
    </bean>
。。。

<bean id="messageListener.setup_listener" class="com.liferay.mySupport.SetupMessagingImplTest" />



   

   <bean id="messagingConfigurator.misc" class="com.liferay.portal.kernel.messaging.config.DefaultMessagingConfigurator">
       <property name="destinations">
           <list>
......
               
               <ref bean="destination.task" />
           </list>
       </property>
       <property name="messageBus">
           <ref bean="com.liferay.portal.kernel.messaging.MessageBus" />
       </property>
       <property name="messageListeners">
           <map key-type="java.lang.String" value-type="java.util.List">
               。。。。
               
               <entry key="liferay/task">
                   <list value-type="com.liferay.portal.kernel.messaging.MessageListener">
                       <ref bean="messageListener.setup_listener" />
                   </list>
               </entry>
                。。。。

           </map>
       </property>
   </bean>
</beans>

触发程序为：

        Message message = new Message();

       JSONObject jsonObject = JSONFactoryUtil.createJSONObject();

       jsonObject.put("command", "success ----test command");

       message.setPayload(jsonObject.toString());

       //MessageBusUtil.sendMessage(DestinationNames.LIVE_USERS, message);

// liferay/task可为portal-service com.liferay.portal.kernel.messaging中DestinationNames，具体为：public static final String LIVE_USERS = "liferay/live_users"; MessageBusUtil.sendMessage("liferay/task", message);

即可传到SetupMessagingImplTest监听器，其为：

import com.liferay.portal.kernel.json.JSONFactoryUtil;
import com.liferay.portal.kernel.json.JSONObject;
import com.liferay.portal.kernel.messaging.BaseMessageListener;
import com.liferay.portal.kernel.messaging.Message;

public class SetupMessagingImplTest extends BaseMessageListener {

   @Override
   protected void doReceive(Message message) throws Exception {

       String payload = (String)message.getPayload();

       JSONObject jsonObject = JSONFactoryUtil.createJSONObject(payload);

       String command = jsonObject.getString("command");
        System.out.println("message="+message);
        System.out.println("command="+command);

   }
}