springcloud整合springboot-admin监控，报错

最新推荐文章于 2025-04-26 22:36:52 发布

原创最新推荐文章于 2025-04-26 22:36:52 发布 · 3.6k 阅读

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#springboot-admin #springcloud

本文详细解析了在使用Spring MVC框架时遇到的Reactive Type Handler警告问题，特别是在高负载下，SimpleAsyncTaskExecutor不再适用的情况。通过配置自定义TaskExecutor，如ThreadPoolTaskExecutor，可以有效解决此问题，确保服务稳定运行。

前提：整合教程网上一堆，admin监控网页显示这个监控服务down

控制台：

2019-10-18 16:25:55.465 WARN 18876 --- [io-8040-exec-10] o.s.w.s.m.m.a.ReactiveTypeHandler :
!!!
Streaming through a reactive type requires an Executor to write to the response.
Please, configure a TaskExecutor in the MVC config under "async support".
The SimpleAsyncTaskExecutor currently in use is not suitable under load.
-------------------------------
Controller:   de.codecentric.boot.admin.server.web.ApplicationsController
Method:       applicationsStream
Returning:   reactor.core.publisher.Flux<org.springframework.http.codec.ServerSentEvent<de.codecentric.boot.admin.server.web.ApplicationsController$Application>>
!!!
2019-10-18 16:30:38.570 INFO 18876 --- [trap-executor-0] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration

解决办法：Please, configure a TaskExecutor in the MVC config under "async support".

@Configuration
public class WebMvcConfig implements WebMvcConfigurer {


    @Override
    public void configureAsyncSupport(final AsyncSupportConfigurer configurer) {
        configurer.setDefaultTimeout(60 * 1000L);
        configurer.registerCallableInterceptors(timeoutInterceptor());
        configurer.setTaskExecutor(threadPoolTaskExecutor());
    }

    @Bean
    public TimeoutCallableProcessingInterceptor timeoutInterceptor() {
        return new TimeoutCallableProcessingInterceptor();
    }

    @Bean
    public ThreadPoolTaskExecutor threadPoolTaskExecutor() {
        ThreadPoolTaskExecutor t = new ThreadPoolTaskExecutor();
        t.setCorePoolSize(10);
        t.setMaxPoolSize(100);
        t.setQueueCapacity(20);
        t.setThreadNamePrefix("WYF-Thread-");
        return t;
    }
}