Polish spring-cloud-incubator/spring-cloud-alibaba#267

spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/NacosDiscoveryAutoConfiguration.java

@@ -16,9 +16,11 @@
 
 package org.springframework.cloud.alibaba.nacos;
 
+import org.springframework.boot.ApplicationRunner;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
 import org.springframework.boot.autoconfigure.AutoConfigureBefore;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnNotWebApplication;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.cloud.alibaba.nacos.registry.NacosAutoServiceRegistration;
@@ -66,4 +68,21 @@ public class NacosDiscoveryAutoConfiguration {
         return new NacosAutoServiceRegistration(registry,
                 autoServiceRegistrationProperties, registration);
     }
+
+    @Bean
+    @ConditionalOnBean(NacosAutoServiceRegistration.class) // NacosAutoServiceRegistration should be present
+    @ConditionalOnNotWebApplication // Not Web Application
+    public ApplicationRunner applicationRunner(NacosAutoServiceRegistration nacosAutoServiceRegistration) {
+        return args -> {
+            // WebServerInitializedEvent should not be multicast in Non-Web environment.
+            // Whatever, NacosAutoServiceRegistration must be checked it's running or not.
+            if (!nacosAutoServiceRegistration.isRunning()) { // If it's not running, let it start.
+                // FIXME: Please make sure "spring.cloud.nacos.discovery.port" must be configured on an available port,
+                // or the startup or Nacos health check will be failed.
+                nacosAutoServiceRegistration.start();
+                // NacosAutoServiceRegistration will be stopped after its destroy() method is invoked.
+                // @PreDestroy destroy() -> stop()
+            }
+        };
+    }
 }