从4.2.0.RC3升级到4.2.0.RELEASE时出现Spring Async问题

从4.2.0.RC3升级到4.2.0.RELEASE时出现Spring Async问题

你的一个中

@Configuration

必须实现

AsyncConfigurer

指定特定

TaskExecutor

的

@Async

方法。

否则，将会使从中选择哪个混淆

applicationContext

。

即使可以正常使用

RC3

也没关系，因此该错误已针对进行了修复

GA

。

更新

源代码

AsyncAnnotationBeanPostProcessor

如下所示：

Executor executorToUse = this.executor;if (executorToUse == null) {    try {        // Search for TaskExecutor bean... not plain Executor since that would        // match with ScheduledExecutorService as well, which is unusable for        // our purposes here. TaskExecutor is more clearly designed for it.        executorToUse = beanFactory.getBean(TaskExecutor.class);    }    catch (NoUniqueBeanDefinitionException ex) {        try { executorToUse = beanFactory.getBean(DEFAULT_TASK_EXECUTOR_BEAN_NAME, TaskExecutor.class);        }        catch (NoSuchBeanDefinitionException ex2) { throw new IllegalStateException("More than one TaskExecutor bean exists within the context, " +         "and none is named 'taskExecutor'. Mark one of them as primary or name it " +         "'taskExecutor' (possibly as an alias); or specify the AsyncConfigurer interface " +         "and implement getAsyncExecutor() accordingly.", ex);        }    }    catch (NoSuchBeanDefinitionException ex) {        logger.debug("Could not find default TaskExecutor bean", ex);        // Giving up -> falling back to default executor within the advisor...    }}

因此，我想在从RC3迁移到GA之前，您已经

taskExecutor

对此事有所了解。

正如您在StackTrace上看到的那样，已经有一个这样的bean …