修改@Scheduled注解增加enable参数使其支持在配置文件中打开和关闭

实现效果

@EnabledSchedule(enableString = "${ECIFTask.addIssueOrgInfoList.enable}",cron = "${ECIFTask.addIssueOrgInfoList.cron}")

ECIFTask:addIssueOrgInfoList:enable: falsecron: 0 0/1 9-21 * * *

如何使用

启动类上面新增这个注解

自定义注解EnabledSchedule

完完全全的copy@Scheduled注解，新增两个参数：enable和enableString，enable是boolean类型，enableString是string类型，enableString支持从配置文件配置任务的启停，修改的代码很少，可以先把这四个文件复制，然后扫一眼就完事了，在修改的地方添加了注释

package com.pkyou.Sample.annotations;import org.springframework.scheduling.config.ScheduledTaskRegistrar;import java.lang.annotation.*;
@Target({ElementType.METHOD, ElementType.ANNOTATION_TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface EnabledSchedule {/*** 配置任务的启停* @return true/false*/boolean enable() default true;/*** 支持从配置文件启停定时任务* @return true/false*/String enableString() default "true";String cron() default "";String zone() default "";long fixedDelay() default -1;String fixedDelayString() default "";long fixedRate() default -1;String fixedRateString() default "";long initialDelay() default -1;String initialDelayString() default "";
}

package com.pkyou.Sample.annotations;import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.aop.framework.AopInfrastructureBean;
import org.springframework.aop.framework.AopProxyUtils;
import org.springframework.aop.support.AopUtils;
import org.springframework.beans.factory.*;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.beans.factory.config.ConfigurableBeanFactory;
import org.springframework.beans.factory.config.DestructionAwareBeanPostProcessor;
import org.springframework.beans.factory.config.NamedBeanHolder;
import org.springframework.beans.factory.support.MergedBeanDefinitionPostProcessor;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.context.ApplicationListener;
import org.springframework.context.EmbeddedValueResolverAware;
import org.springframework.context.event.ContextRefreshedEvent;
import org.springframework.core.MethodIntrospector;
import org.springframework.core.Ordered;
import org.springframework.core.annotation.AnnotatedElementUtils;
import org.springframework.core.annotation.AnnotationAwareOrderComparator;
import org.springframework.core.annotation.AnnotationUtils;
import org.springframework.scheduling.TaskScheduler;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.scheduling.annotation.Schedules;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.config.CronTask;
import org.springframework.scheduling.config.IntervalTask;
import org.springframework.scheduling.config.ScheduledTask;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;
import org.springframework.scheduling.support.CronTrigger;
import org.springframework.scheduling.support.ScheduledMethodRunnable;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;
import org.springframework.util.StringValueResolver;import java.lang.reflect.Method;
import java.time.Duration;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ScheduledExecutorService;
/*** @author luzh32717* @version 1.0* @date 2020/12/27 17:25* @since 3.0* @see EnabledSchedule* @see org.springframework.scheduling.annotation.EnableScheduling* @see SchedulingConfigurer* @see org.springframework.scheduling.TaskScheduler* @see org.springframework.scheduling.config.ScheduledTaskRegistrar* @see org.springframework.scheduling.annotation.AsyncAnnotationBeanPostProcessor*/
public class EnabledScheduledAnnotationBeanPostProcessorimplements MergedBeanDefinitionPostProcessor, DestructionAwareBeanPostProcessor,Ordered, EmbeddedValueResolverAware, BeanNameAware, BeanFactoryAware, ApplicationContextAware,SmartInitializingSingleton, ApplicationListener<ContextRefreshedEvent>, DisposableBean {/*** The default name of the {@link TaskScheduler} bean to pick up: "taskScheduler".* <p>Note that the initial lookup happens by type; this is just the fallback* in case of multiple scheduler beans found in the context.* @since 4.2*/public static final String DEFAULT_TASK_SCHEDULER_BEAN_NAME = "taskScheduler";protected final Log logger = LogFactory.getLog(getClass());private Object scheduler;private StringValueResolver embeddedValueResolver;private String beanName;private BeanFactory beanFactory;private ApplicationContext applicationContext;private final ScheduledTaskRegistrar registrar = new ScheduledTaskRegistrar();private final Set<Class<?>> nonAnnotatedClasses =Collections.newSetFromMap(new ConcurrentHashMap<Class<?>, Boolean>(64));private final Map<Object, Set<ScheduledTask>> scheduledTasks =new IdentityHashMap<Object, Set<ScheduledTask>>(16);@Overridepublic int getOrder() {return LOWEST_PRECEDENCE;}/*** Set the {@link org.springframework.scheduling.TaskScheduler} that will invoke* the scheduled methods, or a {@link java.util.concurrent.ScheduledExecutorService}* to be wrapped as a TaskScheduler.* <p>If not specified, default scheduler resolution will apply: searching for a* unique {@link TaskScheduler} bean in the context, or for a {@link TaskScheduler}* bean named "taskScheduler" otherwise; the same lookup will also be performed for* a {@link ScheduledExecutorService} bean. If neither of the two is resolvable,* a local single-threaded default scheduler will be created within the registrar.* @see #DEFAULT_TASK_SCHEDULER_BEAN_NAME*/public void setScheduler(Object scheduler) {this.scheduler = scheduler;}@Overridepublic void setEmbeddedValueResolver(StringValueResolver resolver) {this.embeddedValueResolver = resolver;}@Overridepublic void setBeanName(String beanName) {this.beanName = beanName;}/*** Making a {@link BeanFactory} available is optional; if not set,* {@link SchedulingConfigurer} beans won't get autodetected and* a {@link #setScheduler scheduler} has to be explicitly configured.*/@Overridepublic void setBeanFactory(BeanFactory beanFactory) {this.beanFactory = beanFactory;}/*** Setting an {@link ApplicationContext} is optional: If set, registered* tasks will be activated in the {@link ContextRefreshedEvent} phase;* if not set, it will happen at {@link #afterSingletonsInstantiated} time.*/@Overridepublic void setApplicationContext(ApplicationContext applicationContext) {this.applicationContext = applicationContext;if (this.beanFactory == null) {this.beanFactory = applicationContext;}}@Overridepublic void afterSingletonsInstantiated() {// Remove resolved singleton classes from cachethis.nonAnnotatedClasses.clear();if (this.applicationContext == null) {// Not running in an ApplicationContext -> register tasks early...finishRegistration();}}@Overridepublic void onApplicationEvent(ContextRefreshedEvent event) {if (event.getApplicationContext() == this.applicationContext) {// Running in an ApplicationContext -> register tasks this late...// giving other ContextRefreshedEvent listeners a chance to perform// their work at the same time (e.g. Spring Batch's job registration).finishRegistration();}}private void finishRegistration() {if (this.scheduler != null) {this.registrar.setScheduler(this.scheduler);}if (this.beanFactory instanceof ListableBeanFactory) {Map<String, SchedulingConfigurer> configurers =((ListableBeanFactory) this.beanFactory).getBeansOfType(SchedulingConfigurer.class);for (SchedulingConfigurer configurer : configurers.values()) {configurer.configureTasks(this.registrar);}}if (this.registrar.hasTasks() && this.registrar.getScheduler() == null) {Assert.state(this.beanFactory != null, "BeanFactory must be set to find scheduler by type");try {// Search for TaskScheduler bean...this.registrar.setTaskScheduler(resolveSchedulerBean(TaskScheduler.class, false));}catch (NoUniqueBeanDefinitionException ex) {logger.debug("Could not find unique TaskScheduler bean", ex);try {this.registrar.setTaskScheduler(resolveSchedulerBean(TaskScheduler.class, true));}catch (NoSuchBeanDefinitionException ex2) {if (logger.isInfoEnabled()) {logger.info("More than one TaskScheduler bean exists within the context, and " +"none is named 'taskScheduler'. Mark one of them as primary or name it 'taskScheduler' " +"(possibly as an alias); or implement the SchedulingConfigurer interface and call " +"ScheduledTaskRegistrar#setScheduler explicitly within the configureTasks() callback: " +ex.getBeanNamesFound());}}}catch (NoSuchBeanDefinitionException ex) {logger.debug("Could not find default TaskScheduler bean", ex);// Search for ScheduledExecutorService bean next...try {this.registrar.setScheduler(resolveSchedulerBean(ScheduledExecutorService.class, false));}catch (NoUniqueBeanDefinitionException ex2) {logger.debug("Could not find unique ScheduledExecutorService bean", ex2);try {this.registrar.setScheduler(resolveSchedulerBean(ScheduledExecutorService.class, true));}catch (NoSuchBeanDefinitionException ex3) {if (logger.isInfoEnabled()) {logger.info("More than one ScheduledExecutorService bean exists within the context, and " +"none is named 'taskScheduler'. Mark one of them as primary or name it 'taskScheduler' " +"(possibly as an alias); or implement the SchedulingConfigurer interface and call " +"ScheduledTaskRegistrar#setScheduler explicitly within the configureTasks() callback: " +ex2.getBeanNamesFound());}}}catch (NoSuchBeanDefinitionException ex2) {logger.debug("Could not find default ScheduledExecutorService bean", ex2);// Giving up -> falling back to default scheduler within the registrar...logger.info("No TaskScheduler/ScheduledExecutorService bean found for scheduled processing");}}}this.registrar.afterPropertiesSet();}private <T> T resolveSchedulerBean(Class<T> schedulerType, boolean byName) {if (byName) {T scheduler = this.beanFactory.getBean(DEFAULT_TASK_SCHEDULER_BEAN_NAME, schedulerType);if (this.beanFactory instanceof ConfigurableBeanFactory) {((ConfigurableBeanFactory) this.beanFactory).registerDependentBean(DEFAULT_TASK_SCHEDULER_BEAN_NAME, this.beanName);}return scheduler;}else if (this.beanFactory instanceof AutowireCapableBeanFactory) {NamedBeanHolder<T> holder = ((AutowireCapableBeanFactory) this.beanFactory).resolveNamedBean(schedulerType);if (this.beanFactory instanceof ConfigurableBeanFactory) {((ConfigurableBeanFactory) this.beanFactory).registerDependentBean(holder.getBeanName(), this.beanName);}return holder.getBeanInstance();}else {return this.beanFactory.getBean(schedulerType);}}@Overridepublic void postProcessMergedBeanDefinition(RootBeanDefinition beanDefinition, Class<?> beanType, String beanName) {}@Overridepublic Object postProcessBeforeInitialization(Object bean, String beanName) {return bean;}/*** 在这个方法里面获取被注解的方法*/@Overridepublic Object postProcessAfterInitialization(final Object bean, String beanName) {Class<?> targetClass = AopUtils.getTargetClass(bean);if (!this.nonAnnotatedClasses.contains(targetClass)) {//修改为返回Map<Method, Set<EnabledSchedule>>Map<Method, Set<EnabledSchedule>> annotatedMethods = MethodIntrospector.selectMethods(targetClass,new MethodIntrospector.MetadataLookup<Set<EnabledSchedule>>() {@Overridepublic Set<EnabledSchedule> inspect(Method method) {Set<EnabledSchedule> scheduledMethods = AnnotatedElementUtils.getAllMergedAnnotations(method, EnabledSchedule.class);return (!scheduledMethods.isEmpty() ? scheduledMethods : null);}});if (annotatedMethods.isEmpty()) {this.nonAnnotatedClasses.add(targetClass);if (logger.isTraceEnabled()) {logger.trace("No @Scheduled annotations found on bean class: " + bean.getClass());}}else {// Non-empty set of methodsfor (Map.Entry<Method, Set<EnabledSchedule>> entry : annotatedMethods.entrySet()) {Method method = entry.getKey();for (EnabledSchedule scheduled : entry.getValue()) {processScheduled(scheduled, method, bean);}}if (logger.isDebugEnabled()) {logger.debug(annotatedMethods.size() + " @Scheduled methods processed on bean '" + beanName +"': " + annotatedMethods);}}}return bean;}/*** 处理注解*/protected void processScheduled(EnabledSchedule scheduled, Method method, Object bean) {try {Assert.isTrue(method.getParameterTypes().length == 0,"Only no-arg methods may be annotated with @Scheduled");Method invocableMethod = AopUtils.selectInvocableMethod(method, bean.getClass());Runnable runnable = new ScheduledMethodRunnable(bean, invocableMethod);boolean processedSchedule = false;String errorMessage ="Exactly one of the 'cron', 'fixedDelay(String)', or 'fixedRate(String)' attributes is required";Set<ScheduledTask> tasks = new LinkedHashSet<ScheduledTask>(4);//20201227 luzh add 新增enableif (!scheduled.enable()){return;}else {String enable = scheduled.enableString();boolean enableFlag = false;if(StringUtils.hasText(enable)){if(this.embeddedValueResolver != null) {enable = this.embeddedValueResolver.resolveStringValue(enable);}if ("true".equals(enable)){enableFlag = true;}}if (!enableFlag){return;}}//20201227 luzh add 新增end// Determine initial delaylong initialDelay = scheduled.initialDelay();String initialDelayString = scheduled.initialDelayString();if (StringUtils.hasText(initialDelayString)) {Assert.isTrue(initialDelay < 0, "Specify 'initialDelay' or 'initialDelayString', not both");if (this.embeddedValueResolver != null) {initialDelayString = this.embeddedValueResolver.resolveStringValue(initialDelayString);}try {initialDelay = Long.parseLong(initialDelayString);}catch (NumberFormatException ex) {throw new IllegalArgumentException("Invalid initialDelayString value \"" + initialDelayString + "\" - cannot parse into integer");}}// Check cron expressionString cron = scheduled.cron();if (StringUtils.hasText(cron)) {Assert.isTrue(initialDelay == -1, "'initialDelay' not supported for cron triggers");processedSchedule = true;String zone = scheduled.zone();if (this.embeddedValueResolver != null) {cron = this.embeddedValueResolver.resolveStringValue(cron);zone = this.embeddedValueResolver.resolveStringValue(zone);}TimeZone timeZone;if (StringUtils.hasText(zone)) {timeZone = StringUtils.parseTimeZoneString(zone);}else {timeZone = TimeZone.getDefault();}tasks.add(this.registrar.scheduleCronTask(new CronTask(runnable, new CronTrigger(cron, timeZone))));}// At this point we don't need to differentiate between initial delay set or not anymoreif (initialDelay < 0) {initialDelay = 0;}// Check fixed delaylong fixedDelay = scheduled.fixedDelay();if (fixedDelay >= 0) {Assert.isTrue(!processedSchedule, errorMessage);processedSchedule = true;tasks.add(this.registrar.scheduleFixedDelayTask(new IntervalTask(runnable, fixedDelay, initialDelay)));}String fixedDelayString = scheduled.fixedDelayString();if (StringUtils.hasText(fixedDelayString)) {Assert.isTrue(!processedSchedule, errorMessage);processedSchedule = true;if (this.embeddedValueResolver != null) {fixedDelayString = this.embeddedValueResolver.resolveStringValue(fixedDelayString);}try {fixedDelay = Long.parseLong(fixedDelayString);}catch (NumberFormatException ex) {throw new IllegalArgumentException("Invalid fixedDelayString value \"" + fixedDelayString + "\" - cannot parse into integer");}tasks.add(this.registrar.scheduleFixedDelayTask(new IntervalTask(runnable, fixedDelay, initialDelay)));}// Check fixed ratelong fixedRate = scheduled.fixedRate();if (fixedRate >= 0) {Assert.isTrue(!processedSchedule, errorMessage);processedSchedule = true;tasks.add(this.registrar.scheduleFixedRateTask(new IntervalTask(runnable, fixedRate, initialDelay)));}String fixedRateString = scheduled.fixedRateString();if (StringUtils.hasText(fixedRateString)) {Assert.isTrue(!processedSchedule, errorMessage);processedSchedule = true;if (this.embeddedValueResolver != null) {fixedRateString = this.embeddedValueResolver.resolveStringValue(fixedRateString);}try {fixedRate = Long.parseLong(fixedRateString);}catch (NumberFormatException ex) {throw new IllegalArgumentException("Invalid fixedRateString value \"" + fixedRateString + "\" - cannot parse into integer");}tasks.add(this.registrar.scheduleFixedRateTask(new IntervalTask(runnable, fixedRate, initialDelay)));}// Check whether we had any attribute setAssert.isTrue(processedSchedule, errorMessage);// Finally register the scheduled taskssynchronized (this.scheduledTasks) {Set<ScheduledTask> registeredTasks = this.scheduledTasks.get(bean);if (registeredTasks == null) {registeredTasks = new LinkedHashSet<ScheduledTask>(4);this.scheduledTasks.put(bean, registeredTasks);}registeredTasks.addAll(tasks);}}catch (IllegalArgumentException ex) {throw new IllegalStateException("Encountered invalid @Scheduled method '" + method.getName() + "': " + ex.getMessage());}}@Overridepublic void postProcessBeforeDestruction(Object bean, String beanName) {Set<ScheduledTask> tasks;synchronized (this.scheduledTasks) {tasks = this.scheduledTasks.remove(bean);}if (tasks != null) {for (ScheduledTask task : tasks) {task.cancel();}}}@Overridepublic boolean requiresDestruction(Object bean) {synchronized (this.scheduledTasks) {return this.scheduledTasks.containsKey(bean);}}@Overridepublic void destroy() {synchronized (this.scheduledTasks) {Collection<Set<ScheduledTask>> allTasks = this.scheduledTasks.values();for (Set<ScheduledTask> tasks : allTasks) {for (ScheduledTask task : tasks) {task.cancel();}}this.scheduledTasks.clear();}this.registrar.destroy();}}

package com.pkyou.Sample.annotations;import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.scheduling.Trigger;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.scheduling.annotation.ScheduledAnnotationBeanPostProcessor;
import org.springframework.scheduling.annotation.SchedulingConfiguration;
import org.springframework.scheduling.annotation.SchedulingConfigurer;
import org.springframework.scheduling.config.ScheduledTaskRegistrar;import java.lang.annotation.*;
import java.util.concurrent.Executor;/*** @author luzh32717* @version 1.0* @date 2020/12/27 17:20* @see EnabledSchedule* @see EnabledSchedulingConfiguration* @see SchedulingConfigurer* @see ScheduledTaskRegistrar* @see Trigger* @see ScheduledAnnotationBeanPostProcessor*/@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Import(EnabledSchedulingConfiguration.class)
@Documented
public @interface EnableMyScheduling {
}

package com.pkyou.Sample.annotations;import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Role;
import org.springframework.scheduling.annotation.ScheduledAnnotationBeanPostProcessor;
import org.springframework.scheduling.config.TaskManagementConfigUtils;/*** @author luzh32717* @version 1.0* @date 2020/12/27 17:22*/
@Configuration
@Role(BeanDefinition.ROLE_INFRASTRUCTURE)
public class EnabledSchedulingConfiguration {@Bean@Role(BeanDefinition.ROLE_INFRASTRUCTURE)public EnabledScheduledAnnotationBeanPostProcessor scheduledAnnotationProcessor() {return new EnabledScheduledAnnotationBeanPostProcessor();}
}

SpringBoot版本

不同版本的spring可能@Scheduled的实现有一丢丢出入
<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>1.5.8.RELEASE</version>
</parent>

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修改@Scheduled注解增加enable参数使其支持在配置文件中打开和关闭

实现效果

如何使用

自定义注解EnabledSchedule

SpringBoot版本

修改@Scheduled注解增加enable参数使其支持在配置文件中打开和关闭相关推荐

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