最近觀察項目運行日誌的時候突然發現了一個異常，

[2018-04-03 10:49:07] 100.0.1.246 http-nio-8080-exec-9 DEBUG org.springframework.scheduling.annotation.AnnotationAsyncExecutionInterceptor———— Could not find default TaskExecutor bean
org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type ‘org.springframework.core.task.TaskExecutor‘ available
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:
 
353)
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:340)
    at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.getDefaultExecutor(AsyncExecutionAspectSupport.java:228)
    at org.springframework.aop.interceptor.AsyncExecutionInterceptor.getDefaultExecutor(AsyncExecutionInterceptor.java:
 
156)
    at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.determineAsyncExecutor(AsyncExecutionAspectSupport.java:166)
    at org.springframework.aop.interceptor.AsyncExecutionInterceptor.invoke(AsyncExecutionInterceptor.java:105)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:
 
179)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
    at com.sun.proxy.$Proxy103.saveAndSendMQ(Unknown Source)
    at com.sinoway.cisp.aop.ReportAspect.saveLoanAndSendMQ(ReportAspect.java:78)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:629)
    at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:611)
    at org.springframework.aop.aspectj.AspectJAfterReturningAdvice.afterReturning(AspectJAfterReturningAdvice.java:65)
    at org.springframework.aop.framework.adapter.AfterReturningAdviceInterceptor.invoke(AfterReturningAdviceInterceptor.java:53)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)

仔細看了一下，異常屬於DEBUG級別，並不影響系統運行，但是還是比較礙眼，查了好久，找到一個解決辦法

import java.util.concurrent.Executor;

import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.scheduling.annotation.AsyncConfigurer;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;

@Configuration
@ComponentScan("切面所在的包名")
@EnableAsync //開啟異步任務支持   如果Application已經開啟，則這個可以省略
public class TaskExecutorConfig implements AsyncConfigurer {
    // 此配置可以解決Could not find default TaskExecutor bean的debug異常
    @Override
    public Executor getAsyncExecutor() {// 實現AsyncConfigurer接口並重寫getAsyncExecutor方法，並返回一個ThreadPoolTaskExecutor，這樣我們就獲得了一個基於線程池TaskExecutor
        ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor();
        taskExecutor.setCorePoolSize(10);
        taskExecutor.setMaxPoolSize(80);
        taskExecutor.setQueueCapacity(100);
        taskExecutor.initialize();
        return taskExecutor;
    }

    @Override
    public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() {
        return null;
    }
}

具體原因未知，正在查找。特此記錄一下有備無患

spring異步執行報異常No qualifying bean of type 'org.springframework.core.task.TaskExecutor' available