Spring定时器使用报错求解决

时间：2022-04-07 23:34:50
配置文件如下： 
<?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-3.1.xsd

						http://www.springframework.org/schema/task

						http://www.springframework.org/schema/task/spring-task-3.1.xsd">

	<task:annotation-driven />

	<!-- 启动触发器的配置开始 -->

	<bean name="startQuertz" lazy-init="false" autowire="no"		

		class="com.gionee.baserom.search.util.SchedulerFactoryBeanWithShutdownDelay" 

		destroy-method="destroy">

		<property name="quartzProperties">

			<props>

				<prop key="org.quartz.threadPool.threadCount">1</prop>

			</props>

		</property>

		<property name="waitForJobsToCompleteOnShutdown">

			<value>false</value>

		</property>

		<property name="triggers">

			<list>

				<ref bean="myJobTrigger" />

			</list>

		</property>

	</bean>

	<!-- 启动触发器的配置结束 -->


	<!-- quartz-2.x的配置 -->

	<bean id="myJobTrigger" class="org.springframework.scheduling.quartz.CronTriggerFactoryBean">

		<property name="jobDetail">

			<ref bean="myJobDetail" />

		</property>

		<property name="cronExpression">

			<!--middle night 24. do it -->

			<value>0 */5 * * * ?</value>

		</property>

	</bean>

	<!-- 调度的配置结束 -->


	<!-- job的配置开始 -->

	<bean id="myJobDetail" class="org.springframework.scheduling.quartz.MethodInvokingJobDetailFactoryBean">

		<property name="targetObject">

			<ref bean="myJob" />

		</property>

		<property name="targetMethod">

			<value>execute</value>

		</property>

	</bean>

	<!-- job的配置结束 -->


	<!-- 工作的bean -->

	<bean id="myJob" class="com.gionee.baserom.search.job.DailyTaskJob" />


	<!-- 新的定时任务都装配在此，加了这段才会报错，不加就能正常，上面的定时器是能正常运行的，只是觉得配置起来麻烦点，想换成下面这种配置方式 -->

	<task:scheduled-tasks>

		<task:scheduled ref="myJob" method="execute" cron="*/10 * * * * ?"/>

	</task:scheduled-tasks>


</beans>


报错如下： 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.scheduling.support.ScheduledMethodRunnable#0': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.scheduling.support.ScheduledMethodRunnable]: Constructor threw exception; nested exception is java.lang.NoSuchMethodException: com.gionee.baserom.search.job.DailyTaskJob.execute()

	at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:278)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.autowireConstructor(AbstractAutowireCapableBeanFactory.java:1115)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1018)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:504)

	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:475)

	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:302)

	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:229)

	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:298)

	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)

	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:706)

	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762)

	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482)

	at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:403)

	at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:306)

	at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)

	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:5068)

	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5584)

	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147)

	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1572)

	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1562)

	at java.util.concurrent.FutureTask.run(FutureTask.java:266)

	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

	at java.lang.Thread.run(Thread.java:745)

Caused by: org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.springframework.scheduling.support.ScheduledMethodRunnable]: Constructor threw exception; nested exception is java.lang.NoSuchMethodException: com.gionee.baserom.search.job.DailyTaskJob.execute()

	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:164)

	at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:125)

	at org.springframework.beans.factory.support.ConstructorResolver.autowireConstructor(ConstructorResolver.java:270)

	... 23 more

Caused by: java.lang.NoSuchMethodException: com.gionee.baserom.search.job.DailyTaskJob.execute()

	at java.lang.Class.getMethod(Class.java:1786)

	at org.springframework.scheduling.support.ScheduledMethodRunnable.<init>(ScheduledMethodRunnable.java:48)

	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)

	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

	at java.lang.reflect.Constructor.newInstance(Constructor.java:422)

	at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148)

	... 25 more


分数不多了，全给了，希望各位指点一下！谢谢！ 


<!-- 新的定时任务都装配在此，加了这段才会报错，不加就能正常，上面的定时器是能正常运行的，只是觉得配置起来麻烦点，想换成下面这种配置方式 -->

	<task:scheduled-tasks>

		<task:scheduled ref="myJob" method="execute" cron="*/10 * * * * ?"/>

	</task:scheduled-tasks>

1 个解决方案

#1

自己解决了，原来很简单，其实配置都是正确的，问题在于定时任务需要执行的方法要为public，否则ScheduledMethodRunnable无法创建获取该方法名，导致创建bean出错！

#1

自己解决了，原来很简单，其实配置都是正确的，问题在于定时任务需要执行的方法要为public，否则ScheduledMethodRunnable无法创建获取该方法名，导致创建bean出错！
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