Question

@SpringBootApplication
public class ConfigClientApplication {

    public static void main(String[] args) {
        SpringApplication.run(ConfigClientApplication.class, args);
    }
}

@Component
class ApplicationEventListener implements ApplicationListener<EnvironmentChangeEvent> {
    @Override
    public void onApplicationEvent(EnvironmentChangeEvent event) {
        System.out.println("event listener");
    }
}

@Component
class RefreshEventListener implements ApplicationListener<RefreshScopeRefreshedEvent> {

    @Override
    public void onApplicationEvent(final RefreshScopeRefreshedEvent event) {
        System.out.println("refresh scope refresh event");
    }

}
}

@Component
@ConfigurationProperties("person")
@RefreshScope
public class PersonConfiguration {
    public String name;
//getter and setter for name

}

尝试测试是否在RefreshScopeRefreshedEvent侦听器上调用了onApplicationEvent。

git中更新了配置，但未调用RefreshScopeRefreshedEvent侦听器。但是，虽然调用了EnvironmentChangeEvent侦听器。

尝试调用/actuator/refresh，即使在这里未调用RefreshScopeRefreshedEvent侦听器，但调用了EnvironmentChangeEvent侦听器。

这是我在git中进行配置的方式

person:
    name: first last

多次更新配置，并且每次仅调用EnvironmentChangeEvent。

我应该在此处更改以调用RefreshScopeRefreshedEvent侦听器。

Answer 1

我只是遇到了以下类无法正常工作的类似问题：

    @Slf4j
    @Configuration
    public class RefreshEventListener {

        @EventListener(RefreshScopeRefreshedEvent.class)
        public void onRefresh(RefreshScopeRefreshedEvent event) {
            log.info("Refresh detected")       
        }
    }

直到我在日志中注意到spring覆盖了那个bean之前，无法弄清楚为什么它不起作用。

2018-10-25 16：03：44.146信息1 --- [main] o.s.b.f.s.DefaultListableBeanFactory：用不同的定义覆盖bean'refreshEventListener'的bean定义：替换[Generic bean：class [x.x.x.RefreshEventListener];作用域=单个abstract = false; lazyInit = false; autowireMode = 0; dependencyCheck = 0; autowireCandidate = true; primary = false; factoryBeanName = null; factoryMethodName = null; initMethodName = null; destroyMethodName = null;在URL [jar：file：/app.jar！/ BOOT-INF / classes！/x/x/x/RefreshEventListener.class]中定义，并带有[Root bean：class [null]; scope =; abstract = false; lazyInit = false; autowireMode = 3; dependencyCheck = 0; autowireCandidate = true; primary = false; factoryBeanName = org.springframework.cloud.autoconfigure.RefreshAutoConfiguration; factoryMethodName = refreshEventListener; initMethodName = null; destroyMethodName =（推断）;在类路径资源[org / springframework / cloud / autoconfigure / RefreshAutoConfiguration.class]中定义

RefreshEventListener bean已在此处定义：https://github.com/spring-cloud/spring-cloud-commons/blob/master/spring-cloud-context/src/main/java/org/springframework/cloud/autoconfigure/RefreshAutoConfiguration.java

我将类名更改为'RefreshEventListener'以外的其他名称，并且按预期方式工作。

RefreshScopeRefreshedEvent侦听器未调用

1 个答案: