有 bootstrap 依赖时，支持 application.yml 中配置服务名

spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/extend/consul/ConsulDiscoveryUtil.java

@@ -65,7 +65,7 @@ public final class ConsulDiscoveryUtil {
 		if (StringUtils.isNotBlank(appName)) {
 			return appName;
 		}
-		return env.getProperty("spring.application.name", "application");
+		return env.getProperty("spring.application.name");
 	}
 
 	public static String getInstanceId(ConsulDiscoveryProperties properties, ApplicationContext context) {

spring-cloud-starter-tencent-polaris-discovery/src/main/java/com/tencent/cloud/polaris/registry/PolarisServiceRegistry.java

@@ -25,6 +25,7 @@ import java.util.concurrent.ScheduledExecutorService;
 
 import com.tencent.cloud.common.metadata.MetadataContext;
 import com.tencent.cloud.common.metadata.StaticMetadataManager;
+import com.tencent.cloud.common.util.ApplicationContextAwareUtils;
 import com.tencent.cloud.common.util.OkHttpUtil;
 import com.tencent.cloud.common.util.OtUtils;
 import com.tencent.cloud.polaris.PolarisDiscoveryProperties;
@@ -101,12 +102,16 @@ public class PolarisServiceRegistry implements ServiceRegistry<PolarisRegistrati
 	@Override
 	public void register(PolarisRegistration registration) {
 
-		if (StringUtils.isBlank(registration.getServiceId())) {
+		String serviceId = registration.getServiceId();
+		if (StringUtils.isBlank(serviceId)) {
+			serviceId = ApplicationContextAwareUtils.getProperties("spring.application.name");
+		}
+
+		if (StringUtils.isBlank(serviceId)) {
 			LOGGER.warn("No service to register for polaris client...");
 			return;
 		}
 		registration.customize();
-		String serviceId = registration.getServiceId();
 		MetadataContext.setLocalService(serviceId);
 
 		// Register instance.