## 添加微服务注册成功刷新nacos缓存；

bd-business/bd-business-scm/src/main/java/com/hzs/listener/NacosInstancesChangeEventListener.java

@@ -0,0 +1,43 @@
+package com.hzs.listener;
+
+import com.alibaba.nacos.client.naming.event.InstancesChangeEvent;
+import com.alibaba.nacos.common.notify.NotifyCenter;
+import com.alibaba.nacos.common.notify.listener.Subscriber;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.cache.Cache;
+import org.springframework.cache.CacheManager;
+import org.springframework.cloud.loadbalancer.core.CachingServiceInstanceListSupplier;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.PostConstruct;
+import javax.annotation.Resource;
+
+@Component
+@Slf4j
+public class NacosInstancesChangeEventListener extends Subscriber<InstancesChangeEvent> {
+
+    @Resource
+    private CacheManager defaultLoadBalancerCacheManager;
+
+    @PostConstruct
+    public void registerToNotifyCenter(){
+        NotifyCenter.registerSubscriber(this);
+    }
+
+    @Override
+    public void onEvent(InstancesChangeEvent event) {
+        log.info("scm 接收微服务刷新事件：{}, 开始刷新本地存储的微服务缓存", event.getServiceName());
+        Cache cache = defaultLoadBalancerCacheManager.getCache(CachingServiceInstanceListSupplier.SERVICE_INSTANCE_CACHE_NAME);
+        if (cache != null) {
+            cache.evict(event.getServiceName());
+            log.info("{} 微服务刷新", event.getServiceName());
+        }
+        log.info("scm 微服务缓存刷新完成");
+    }
+
+    @Override
+    public Class<? extends com.alibaba.nacos.common.notify.Event> subscribeType() {
+        return InstancesChangeEvent.class;
+    }
+
+}