春天开机抽象自动配置问题

Question

我有以下错误，同时使用弹簧启动运行的Activiti和网络插口一起：

Parameter 0 of method springAsyncExecutor in org.activiti.spring.boot.AbstractProcessEngineAutoConfiguration required a single bean, but 4 were found: 
- clientInboundChannelExecutor: defined by method 'clientInboundChannelExecutor' in class path resource [org/springframework/web/socket/config/annotation/DelegatingWebSocketMessageBrokerConfiguration.class] 
- clientOutboundChannelExecutor: defined by method 'clientOutboundChannelExecutor' in class path resource [org/springframework/web/socket/config/annotation/DelegatingWebSocketMessageBrokerConfiguration.class] 
- brokerChannelExecutor: defined by method 'brokerChannelExecutor' in class path resource [org/springframework/web/socket/config/annotation/DelegatingWebSocketMessageBrokerConfiguration.class] 
- messageBrokerTaskScheduler: defined by method 'messageBrokerTaskScheduler' in class path resource [org/springframework/web/socket/config/annotation/DelegatingWebSocketMessageBrokerConfiguration.class] 


Action: 

Consider marking one of the beans as @Primary, updating the consumer to accept multiple beans, or using @Qualifier to identify the bean that should be consumed 

随着春天的Boot使用抽象的配置，我要重写一些配置？

感谢您的帮助。

Answer 1

这可以说是Activiti的自动配置类中的一个错误。它依赖于它们在应用程序上下文中唯一的一个TaskExecutor bean，或者如果有多个bean，则它们中的一个是主要的。

您应该能够通过声明自己TaskExecutor豆并将其标记为@Primary，以解决此问题：

@Configuration 
class SomeConfiguration { 

    @Primary 
    @Bean 
    public TaskExecutor primaryTaskExecutor() { 
     ThreadPoolTaskExecutor executor = new ThreadPoolTaskExecutor(); 
     // Customize executor as appropriate 
     return executor; 
    } 

}