spring定時任務執行兩次

啟動spring定時任務執行兩次的解決辦法

1、需要把定時任務配置單獨添加在一個xml配置檔案中，application-task.xml（示例配置為啟動項目後執行一次定時任務）

<?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:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xmlns:task="http://www.springframework.org/schema/task"

       xsi:schemaLocation="
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-2.5.xsd
         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
            http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.2.xsd">

    <!-- 定時任務 -->
    <bean id="myScheduler"
          class="org.springframework.scheduling.quartz.SchedulerFactoryBean">
        <property name="triggers">
            <list>
                <ref bean="simpleTriggerBean"></ref>
            </list>
        </property>
        <!--<property name="autoStartup" value="true"></property>-->
    </bean>

    <bean id="myJobDetail"
          class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">
        <property name="targetObject" ref="quartzTaskJob"/>
        <property name="targetMethod" value="testJob"/>
        <property name="concurrent" value="false" />
        <!-- 是否允許任務并發執行。當值為false時，表示必須等到前一個線程處理完畢後才再啟一個新的線程 -->
    </bean>
    <bean id="simpleTriggerBean" class="org.springframework.scheduling.quartz.SimpleTriggerFactoryBean">
        <property name="jobDetail" ref="myJobDetail"/>
        <property name="repeatInterval" value="0"/>
        <property name="repeatCount" value="0"/>
        <property name="startDelay" value="5000"/> <!-- 啟動項目後延遲5s執行定時任務-->
    </bean>

    <!-- 定時器開關 -->
    <task:annotation-driven/>

    <bean id="quartzTaskJob" class="com.tfrd.task.QuartzTaskJob"></bean>


</beans>
           

2、在web.xml的contextConfigLocation中添加該配置檔案
           

<context-param>

        <param-name>contextConfigLocation</param-name>

        <param-value>/WEB-INF/mvc-dispatcher-servlet.xml,/WEB-INF/application-task.xml</param-value>

    </context-param>

public class QuartzTaskJob {

    /**
     * 定時任務
     */
    //@Scheduled(cron = "0 0/5 * * * ?")
    public void testJob() {
        System.out.println("執行定時任務" + LocalDateTime.now());
    }
}