使用基於註解配置的spring定時器

基於註解會相對簡單的多,直接編寫任務類Mytask

@EnableScheduling
@Component
public class Mytask {
  @Scheduled(cron = "*/5 * * * * ?")
  public void execute(){
    System.out.println("基於註解配置的spring定時任務！");
  }
}

任務類也要納入spring管理

<context:component-scan base-package="com.simonsfan.study.controller.Mytask">
<task:annotation-driven/>
 

使用基於xml配置的spring定時器

public class MyTask {
  public void execute(){
    System.out.println("基於註解配置的spring定時任務！");
  }
}

編寫個spring-task.xml專門用來配置載入定時任務資訊

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:task="http://www.springframework.org/schema/task"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
		http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.2.xsd"
       default-lazy-init="true">
    <task:scheduled-tasks>
        <!--直充重試機制-->
        <task:scheduled ref="myTask" method="execute" cron="0 1 * * * ?"/>  ##myTask必須是定時任務類名小寫
    </task:scheduled-tasks>
</beans>
 

並把此加入spring配置檔案中

   <!--  task  -->
   <import resource="spring-task.xml"/>

quartz定時器

<dependency>
  <groupId>org.quartz-scheduler</groupId>
  <artifactId>quartz</artifactId>
  <version>2.2.2</version>
</dependency>

@Component
public class Mytask {
  public void execute() {
    System.out.println("基於spring+quartz實現定時任務！");;
  }
}
 

spring配置檔案中加入

<bean id="jobBean" class="com.pptv.vipbackend.controller.Mytask"/>
<bean id="myJobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
  <property name="targetObject">
    <ref bean="jobBean"/>
  </property>
<property name="targetMethod">
    <value>execute</value><!--任務類中的方法名-->
</property>
<!--將併發設定為false-->
<property name="concurrent" value="false" />
 </bean>
<bean id="simpleTrigger" class="org.springframework.scheduling.quartz.SimpleTriggerFactoryBean">
  <property name="jobDetail" ref="myJobDetail" />
  <property name="startDelay" value="1000" />
  <property name="repeatInterval" value="2000" />
</bean>

<!-- 總管理類如果將lazy-init='false'那麼容器啟動就會執行排程程式 -->
<bean id="startQuertz" class="org.springframework.scheduling.quartz.SchedulerFactoryBean" lazy-init="false" autowire="no">
  <property name="triggers">
    <list>
      <!--作業排程器,list下可加入其他的排程器-->
      <ref bean="simpleTrigger" />
      </list>
  </property>
</bean>

這樣，基於spring + quartz便可實現定時任務的排程。

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