记录：Spring异步执行的报异常No qualifying bean of type ‘org.springframework.core.task.TaskExecutor‘ available
问题：
观察项目运行日志的时候突然发现了一个异常：
无TaskExecutor 注入的情况
[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.$Proxy103.saveAndSendMQ(Unknown Source)或者，TaskExecutor 这个类有两个的情况（matching bean but found 2:applicationTaskExecutor,taskScheduler）：
2025-12-11 11:03:00,895 DEBUG 24516 --- [main] [] .s.a.AnnotationAsyncExecutionInterceptor : Could not find unique TaskExecutor bean. Continuing search for an Executor bean named 'taskExecutor' org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type 'org.springframework.core.task.TaskExecutor' available: expected single matching bean but found 2: applicationTaskExecutor,taskScheduler at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveNamedBean(DefaultListableBeanFactory.java:1273) at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveBean(DefaultListableBeanFactory.java:494) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:349) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:342) at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.getDefaultExecutor(AsyncExecutionAspectSupport.java:233) at org.springframework.aop.interceptor.AsyncExecutionInterceptor.getDefaultExecutor(AsyncExecutionInterceptor.java:157) at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.lambda$configure$2(AsyncExecutionAspectSupport.java:119) at org.springframework.util.function.SingletonSupplier.get(SingletonSupplier.java:100) at org.springframework.aop.interceptor.AsyncExecutionAspectSupport.determineAsyncExecutor(AsyncExecutionAspectSupport.java:172) at org.springframework.aop.interceptor.AsyncExecutionInterceptor.invoke(AsyncExecutionInterceptor.java:107) at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:762) at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:707)applicationTaskExecutor：Spring Boot 默认的异步任务执行器（由TaskExecutionAutoConfiguration自动配置）。taskScheduler：Spring Boot 默认的任务调度器（由TaskSchedulingAutoConfiguration自动配置），其类型也实现了TaskExecutor，因此会被识别为同类型 Bean。
| Bean 名称 | 自动配置类 | 核心用途 | 为什么是 TaskExecutor 类型 |
|---|---|---|---|
applicationTaskExecutor | TaskExecutionAutoConfiguration | 处理异步任务（如@Async注解） | 直接实现TaskExecutor |
taskScheduler | TaskSchedulingAutoConfiguration | 处理定时任务（如@Scheduled） | 实现类ThreadPoolTaskScheduler同时继承TaskExecutor |
异常属于DEBUG级别，并不影响系统运行，但是还是比较碍眼
解决：
在配置类中实现AsyncConfigurer接口，注册taskExecutor执行任务，即可，图和代码如下
package common.core.config; import org.springframework.aop.interceptor.AsyncUncaughtExceptionHandler; import org.springframework.context.annotation.Configuration; import org.springframework.scheduling.annotation.AsyncConfigurer; import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor; import java.util.concurrent.Executor; /** * @ClassName TaskExecutorConfig * @Description 实现AsyncConfigurer接口，指定异步执行的线程池 * @Date 2025/12/11 11:18 * @Version 1.0 */ @Configuration public class TaskExecutorConfig implements AsyncConfigurer { @Override public Executor getAsyncExecutor() { ThreadPoolTaskExecutor taskExecutor = new ThreadPoolTaskExecutor(); taskExecutor.setCorePoolSize(10); taskExecutor.setMaxPoolSize(80); taskExecutor.setQueueCapacity(100); taskExecutor.initialize(); return taskExecutor; } @Override public AsyncUncaughtExceptionHandler getAsyncUncaughtExceptionHandler() { return null; } }引用：
1、https://www.cnblogs.com/java-spring/p/8707789.html