Java 没有 ScheduledExecutorService 类型的合格 bean | 任务调度器
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No qualifying bean of type ScheduledExecutorService | TaskScheduler
提问by vels4j
Here is the Scheduling Configuration
这是调度配置
@Configuration
@EnableScheduling
public class RWInventorySchedule {
protected org.slf4j.Logger log = LoggerFactory.getLogger(RWInventorySchedule.class);
@PersistenceContext
private EntityManager entityManager;
@Bean
public RWInventoryProcessor constructInventoryProcessor() {
log.debug("RWInventorySchedule constructs InventoryProcessor, entityManager : {} " , entityManager);
return new RWInventoryProcessor(entityManager);
}
}
Inventory Processor is the following
库存处理器如下
public class RWInventoryProcessor {
...
@Scheduled(fixedRate = 5000,initialDelay = 3000)
@Transactional
public void runProcess() {
...
}
}
During execution, getting the following errors in debug log
在执行过程中，在调试日志中得到以下错误
DEBUG org.springframework.scheduling.annotation.ScheduledAnnotationBeanPostProcessor - Could not find default TaskScheduler bean org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.scheduling.TaskScheduler' available
...
DEBUG org.springframework.scheduling.annotation.ScheduledAnnotationBeanPostProcessor - Could not find default ScheduledExecutorService bean org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'java.util.concurrent.ScheduledExecutorService' available
调试 org.springframework.scheduling.annotation.ScheduledAnnotationBeanPostProcessor - 找不到默认的 TaskScheduler bean org.springframework.beans.factory.NoSuchBeanDefinitionException: 没有可用的“org.springframework.scheduling.TaskScheduler”类型的合格 bean
...
调试 org.springframework. schedule.annotation.ScheduledAnnotationBeanPostProcessor - 找不到默认的 ScheduledExecutorService bean org.springframework.beans.factory.NoSuchBeanDefinitionException: 没有可用的“java.util.concurrent.ScheduledExecutorService”类型的合格 bean
Am I missing anything
我错过了什么吗
采纳答案by Adam
If you're using Java configuration you need an @Bean definition for the type of scheduler you wish to use. Spring does not have a default bean for this. For example
如果您使用 Java 配置，则需要为您希望使用的调度程序类型定义 @Bean。Spring 没有为此提供默认 bean。例如
@Bean
public TaskScheduler taskScheduler() {
return new ConcurrentTaskScheduler(); //single threaded by default
}
回答by rvillablanca
I have used this form my xml Spring Configuration:
我在我的 xml Spring 配置中使用了这种形式：
<task:annotation-driven executor="executor" />
<task:scheduler id="scheduler" pool-size="10"/>
<task:executor id="executor" pool-size="7"/>
My Component processor is:
我的组件处理器是：
@Component
public class QueueConsumer {
@Autowired
ProcessQueue queue;
@Autowired
TaskProcessor processor;
@Autowired
TaskResultRepository resultRepository;
@Scheduled(fixedDelay = 15000)
public void runJob() {
ProcessTask task = queue.poll();
...
}
}
You need the annotation equivalent to <task:scheduler id="scheduler" pool-size="10"/>
您需要等效于的注释 <task:scheduler id="scheduler" pool-size="10"/>
