Merge pull request #2152 from XuDaojie/nacos-loadbalancer-2020.0.0

Nacos loadbalancer pr

.gitignore

@@ -40,3 +40,6 @@ target
 
 # Maven ignore
 .flattened-pom.xml
+
+# AsciiDoc
+spring-cloud-alibaba-docs/**/*.html

spring-cloud-alibaba-docs/src/main/asciidoc-zh/nacos-discovery.adoc

@@ -291,6 +291,27 @@ Endpoint 暴露的 json 中包含了两种属性:
 }
 ----
 
+=== 如何开启权重路由
+
+==== Spring Cloud Loadbalancer
+.pom.xml
+[source,xml]
+----
+<dependencies>
+    <dependency>
+        <groupId>org.springframework.cloud</groupId>
+        <artifactId>spring-cloud-loadbalancer</artifactId>
+    </dependency>
+</dependencies>
+----
+
+.application.properties
+[source,properties]
+----
+spring.cloud.loadbalancer.ribbon.enabled=false
+spring.cloud.loadbalancer.nacos.enabled=true
+----
+
 === 关于 Nacos Discovery Starter 更多的配置项信息
 
 更多关于 Nacos Discovery Starter 的配置项如下所示:
@@ -310,7 +331,7 @@ Endpoint 暴露的 json 中包含了两种属性:
 |日志文件名|`spring.cloud.nacos.discovery.log-name`||
 |集群|`spring.cloud.nacos.discovery.cluster-name`|`DEFAULT`|Nacos集群名称
 |接入点|`spring.cloud.nacos.discovery.endpoint`||地域的某个服务的入口域名，通过此域名可以动态地拿到服务端地址
-|是否集成Ribbon|`ribbon.nacos.enabled`|`true`|一般都设置成true即可
+|是否集成LoadBalancer|`spring.cloud.loadbalancer.nacos.enabled`|`false`|
 |是否开启Nacos Watch|`spring.cloud.nacos.discovery.watch.enabled`|`true`|可以设置成false来关闭 watch
 |===
 

spring-cloud-alibaba-docs/src/main/asciidoc/nacos-discovery.adoc

@@ -294,6 +294,27 @@ The followings shows how a service instance accesses the Endpoint:
 }
 ----
 
+=== Weight Route
+
+==== Spring Cloud Loadbalancer
+.pom.xml
+[source,xml]
+----
+<dependencies>
+    <dependency>
+        <groupId>org.springframework.cloud</groupId>
+        <artifactId>spring-cloud-loadbalancer</artifactId>
+    </dependency>
+</dependencies>
+----
+
+.application.properties
+[source,properties]
+----
+spring.cloud.loadbalancer.ribbon.enabled=false
+spring.cloud.loadbalancer.nacos.enabled=true
+----
+
 === More Information about Nacos Discovery Starter Configurations
 
 The following shows the other configurations of the starter of Nacos Discovery:
@@ -313,7 +334,7 @@ The following shows the other configurations of the starter of Nacos Discovery:
 |Log file name|`spring.cloud.nacos.discovery.log-name`||
 |Cluster Name|`spring.cloud.nacos.discovery.cluster-name`|`DEFAULT`|Cluster name of Nacos
 |Endpoint|`spring.cloud.nacos.discovery.endpoint`||The domain name of a certain service in a specific region. You can retrieve the server address dynamically with this domain name
-|Integrate Ribbon or not|`ribbon.nacos.enabled`|`true`|Set to true in most cases
+|Integrate LoadBalancer or not|`spring.cloud.loadbalancer.nacos.enabled`|`false`|
 |Enable Nacos Watch|`spring.cloud.nacos.discovery.watch.enabled`|`true`|set to false to close watch
 |===
 

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-consumer-sclb-example/src/main/java/com/alibaba/cloud/examples/ConsumerSCLBApplication.java

@@ -27,6 +27,7 @@ import reactor.core.publisher.Mono;
 
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.client.ServiceInstance;
@@ -161,12 +162,21 @@ public class ConsumerSCLBApplication {
 		@Autowired
 		private DiscoveryClient discoveryClient;
 
+		@Value("${spring.cloud.loadbalancer.zone:null}")
+		private String zone;
+
 		@GetMapping("/echo-rest/{str}")
 		public String rest(@PathVariable String str) {
 			return restTemplate.getForObject("http://service-provider/echo/" + str,
 					String.class);
 		}
 
+		@GetMapping("/zone")
+		public String zone() {
+			return "consumer zone " + zone + "\n" + restTemplate
+					.getForObject("http://service-provider/zone", String.class);
+		}
+
 		@GetMapping("/echo-feign/{str}")
 		public String feign(@PathVariable String str) {
 			return echoService.echo(str);

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-consumer-sclb-example/src/main/resources/application.properties

@@ -7,6 +7,8 @@ spring.cloud.nacos.username=nacos
 spring.cloud.nacos.password=nacos
 
 spring.cloud.loadbalancer.ribbon.enabled=false
+spring.cloud.loadbalancer.configurations=zone-preference
+spring.cloud.loadbalancer.zone=hangzhou
 
 feign.sentinel.enabled=true
 

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-provider-example/src/main/java/com/alibaba/cloud/examples/ProviderApplication.java

@@ -16,6 +16,12 @@
 
 package com.alibaba.cloud.examples;
 
+import java.util.Map;
+
+import javax.annotation.Resource;
+
+import com.alibaba.cloud.nacos.NacosDiscoveryProperties;
+
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@@ -40,6 +46,9 @@ public class ProviderApplication {
 	@RestController
 	class EchoController {
 
+		@Resource
+		private NacosDiscoveryProperties nacosDiscoveryProperties;
+
 		@GetMapping("/")
 		public ResponseEntity index() {
 			return new ResponseEntity("index error", HttpStatus.INTERNAL_SERVER_ERROR);
@@ -71,6 +80,12 @@ public class ProviderApplication {
 			return String.valueOf(a / b);
 		}
 
+		@GetMapping("/zone")
+		public String zone() {
+			Map<String, String> metadata = nacosDiscoveryProperties.getMetadata();
+			return "provider zone " + metadata.get("zone");
+		}
+
 	}
 
 }

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/pom.xml

@@ -93,6 +93,12 @@
             <optional>true</optional>
         </dependency>
 
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-loadbalancer</artifactId>
+            <optional>true</optional>
+        </dependency>
+
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/balancer/NacosBalancer.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright 2013-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.alibaba.cloud.nacos.balancer;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+import com.alibaba.nacos.api.naming.pojo.Instance;
+import com.alibaba.nacos.client.naming.core.Balancer;
+
+import org.springframework.cloud.client.ServiceInstance;
+
+/**
+ * @author itmuch.com XuDaojie
+ * @since 2021.1
+ */
+public class NacosBalancer extends Balancer {
+
+	/**
+	 * Choose instance by weight.
+	 * @param instances Instance List
+	 * @return the chosen instance
+	 */
+	public static Instance getHostByRandomWeight2(List<Instance> instances) {
+		return getHostByRandomWeight(instances);
+	}
+
+	/**
+	 * Spring Cloud LoadBalancer Choose instance by weight.
+	 * @param serviceInstances Instance List
+	 * @return the chosen instance
+	 */
+	public static ServiceInstance getHostByRandomWeight3(
+			List<ServiceInstance> serviceInstances) {
+		Map<Instance, ServiceInstance> instanceMap = new HashMap<>();
+		List<Instance> nacosInstance = serviceInstances.stream().map(serviceInstance -> {
+			Map<String, String> metadata = serviceInstance.getMetadata();
+
+			// see
+			// com.alibaba.cloud.nacos.discovery.NacosServiceDiscovery.hostToServiceInstance()
+			Instance instance = new Instance();
+			instance.setIp(serviceInstance.getHost());
+			instance.setPort(serviceInstance.getPort());
+			instance.setWeight(Double.parseDouble(metadata.get("nacos.weight")));
+			instance.setHealthy(Boolean.parseBoolean(metadata.get("nacos.healthy")));
+			instanceMap.put(instance, serviceInstance);
+			return instance;
+		}).collect(Collectors.toList());
+
+		Instance instance = getHostByRandomWeight2(nacosInstance);
+		return instanceMap.get(instance);
+	}
+
+}

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/loadbalancer/ConditionalOnLoadBalancerNacos.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright 2013-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.alibaba.cloud.nacos.loadbalancer;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+
+@Retention(RetentionPolicy.RUNTIME)
+@Target({ElementType.TYPE, ElementType.METHOD})
+@ConditionalOnProperty(value = "spring.cloud.loadbalancer.nacos.enabled", havingValue = "true")
+public @interface ConditionalOnLoadBalancerNacos {
+
+}

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/loadbalancer/LoadBalancerNacosAutoConfiguration.java

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2013-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.alibaba.cloud.nacos.loadbalancer;
+
+import com.alibaba.cloud.nacos.ConditionalOnNacosDiscoveryEnabled;
+
+import org.springframework.boot.context.properties.EnableConfigurationProperties;
+import org.springframework.cloud.loadbalancer.annotation.LoadBalancerClients;
+import org.springframework.context.annotation.Configuration;
+
+/**
+ * {@link org.springframework.boot.autoconfigure.EnableAutoConfiguration
+ * Auto-configuration} that sets up LoadBalancer for Nacos.
+ */
+@Configuration(proxyBeanMethods = false)
+@EnableConfigurationProperties
+@ConditionalOnLoadBalancerNacos
+@ConditionalOnNacosDiscoveryEnabled
+@LoadBalancerClients(defaultConfiguration = NacosLoadBalancerClientConfiguration.class)
+public class LoadBalancerNacosAutoConfiguration {
+
+}

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/loadbalancer/NacosLoadBalancer.java

@@ -0,0 +1,112 @@
+/*
+ * Copyright 2013-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.alibaba.cloud.nacos.loadbalancer;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+import com.alibaba.cloud.commons.lang.StringUtils;
+import com.alibaba.cloud.nacos.NacosDiscoveryProperties;
+import com.alibaba.cloud.nacos.balancer.NacosBalancer;
+import com.alibaba.nacos.client.naming.utils.CollectionUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import reactor.core.publisher.Mono;
+
+import org.springframework.beans.factory.ObjectProvider;
+import org.springframework.cloud.client.ServiceInstance;
+import org.springframework.cloud.client.loadbalancer.DefaultResponse;
+import org.springframework.cloud.client.loadbalancer.EmptyResponse;
+import org.springframework.cloud.client.loadbalancer.Request;
+import org.springframework.cloud.client.loadbalancer.Response;
+import org.springframework.cloud.loadbalancer.core.NoopServiceInstanceListSupplier;
+import org.springframework.cloud.loadbalancer.core.ReactorServiceInstanceLoadBalancer;
+import org.springframework.cloud.loadbalancer.core.ServiceInstanceListSupplier;
+
+/**
+ * see original.
+ * {@link org.springframework.cloud.loadbalancer.core.RoundRobinLoadBalancer}
+ *
+ * @author XuDaojie
+ * @since 2021.1
+ */
+public class NacosLoadBalancer implements ReactorServiceInstanceLoadBalancer {
+
+	private static final Logger log = LoggerFactory.getLogger(NacosLoadBalancer.class);
+
+	private final String serviceId;
+
+	private ObjectProvider<ServiceInstanceListSupplier> serviceInstanceListSupplierProvider;
+
+	private final NacosDiscoveryProperties nacosDiscoveryProperties;
+
+	public NacosLoadBalancer(
+			ObjectProvider<ServiceInstanceListSupplier> serviceInstanceListSupplierProvider,
+			String serviceId, NacosDiscoveryProperties nacosDiscoveryProperties) {
+		this.serviceId = serviceId;
+		this.serviceInstanceListSupplierProvider = serviceInstanceListSupplierProvider;
+		this.nacosDiscoveryProperties = nacosDiscoveryProperties;
+	}
+
+	@Override
+	public Mono<Response<ServiceInstance>> choose(Request request) {
+		ServiceInstanceListSupplier supplier = serviceInstanceListSupplierProvider
+				.getIfAvailable(NoopServiceInstanceListSupplier::new);
+		return supplier.get().next().map(this::getInstanceResponse);
+	}
+
+	private Response<ServiceInstance> getInstanceResponse(
+			List<ServiceInstance> serviceInstances) {
+		if (serviceInstances.isEmpty()) {
+			log.warn("No servers available for service: " + this.serviceId);
+			return new EmptyResponse();
+		}
+
+		try {
+			String clusterName = this.nacosDiscoveryProperties.getClusterName();
+
+			List<ServiceInstance> instancesToChoose = serviceInstances;
+			if (StringUtils.isNotBlank(clusterName)) {
+				List<ServiceInstance> sameClusterInstances = serviceInstances.stream()
+						.filter(serviceInstance -> {
+							String cluster = serviceInstance.getMetadata()
+									.get("nacos.cluster");
+							return StringUtils.equals(cluster, clusterName);
+						}).collect(Collectors.toList());
+				if (!CollectionUtils.isEmpty(sameClusterInstances)) {
+					instancesToChoose = sameClusterInstances;
+				}
+			}
+			else {
+				log.warn(
+						"A cross-cluster call occurs，name = {}, clusterName = {}, instance = {}",
+						serviceId, clusterName, serviceInstances);
+			}
+
+			ServiceInstance instance = NacosBalancer
+					.getHostByRandomWeight3(instancesToChoose);
+
+			return new DefaultResponse(instance);
+		}
+		catch (Exception e) {
+			log.warn("NacosLoadBalancer error", e);
+			return null;
+		}
+
+	}
+
+}

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/loadbalancer/NacosLoadBalancerClientConfiguration.java

@@ -0,0 +1,121 @@
+/*
+ * Copyright 2013-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.alibaba.cloud.nacos.loadbalancer;
+
+import com.alibaba.cloud.nacos.NacosDiscoveryProperties;
+
+import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.cloud.client.ConditionalOnBlockingDiscoveryEnabled;
+import org.springframework.cloud.client.ConditionalOnDiscoveryEnabled;
+import org.springframework.cloud.client.ConditionalOnReactiveDiscoveryEnabled;
+import org.springframework.cloud.client.ServiceInstance;
+import org.springframework.cloud.client.discovery.DiscoveryClient;
+import org.springframework.cloud.client.discovery.ReactiveDiscoveryClient;
+import org.springframework.cloud.loadbalancer.core.ReactorLoadBalancer;
+import org.springframework.cloud.loadbalancer.core.ServiceInstanceListSupplier;
+import org.springframework.cloud.loadbalancer.support.LoadBalancerClientFactory;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.core.annotation.Order;
+import org.springframework.core.env.Environment;
+
+/**
+ * {@link ServiceInstanceListSupplier} don't use cache.<br>
+ * <br>
+ * 1. LoadBalancerCache causes information such as the weight of the service instance to
+ * be changed without immediate effect.<br>
+ * 2. Nacos itself supports caching.
+ *
+ * @author XuDaojie
+ * @since 2021.1
+ */
+@Configuration(proxyBeanMethods = false)
+@ConditionalOnDiscoveryEnabled
+public class NacosLoadBalancerClientConfiguration {
+
+	private static final int REACTIVE_SERVICE_INSTANCE_SUPPLIER_ORDER = 183827465;
+
+	@Bean
+	@ConditionalOnMissingBean
+	public ReactorLoadBalancer<ServiceInstance> nacosLoadBalancer(Environment environment,
+			LoadBalancerClientFactory loadBalancerClientFactory,
+			NacosDiscoveryProperties nacosDiscoveryProperties) {
+		String name = environment.getProperty(LoadBalancerClientFactory.PROPERTY_NAME);
+		return new NacosLoadBalancer(
+				loadBalancerClientFactory.getLazyProvider(name,
+						ServiceInstanceListSupplier.class),
+				name, nacosDiscoveryProperties);
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	@ConditionalOnReactiveDiscoveryEnabled
+	@Order(REACTIVE_SERVICE_INSTANCE_SUPPLIER_ORDER)
+	public static class ReactiveSupportConfiguration {
+
+		@Bean
+		@ConditionalOnBean(ReactiveDiscoveryClient.class)
+		@ConditionalOnMissingBean
+		@ConditionalOnProperty(value = "spring.cloud.loadbalancer.configurations", havingValue = "default", matchIfMissing = true)
+		public ServiceInstanceListSupplier discoveryClientServiceInstanceListSupplier(
+				ConfigurableApplicationContext context) {
+			return ServiceInstanceListSupplier.builder().withDiscoveryClient()
+					.build(context);
+		}
+
+		@Bean
+		@ConditionalOnBean(ReactiveDiscoveryClient.class)
+		@ConditionalOnMissingBean
+		@ConditionalOnProperty(value = "spring.cloud.loadbalancer.configurations", havingValue = "zone-preference")
+		public ServiceInstanceListSupplier zonePreferenceDiscoveryClientServiceInstanceListSupplier(
+				ConfigurableApplicationContext context) {
+			return ServiceInstanceListSupplier.builder().withDiscoveryClient()
+					.withZonePreference().build(context);
+		}
+
+	}
+
+	@Configuration(proxyBeanMethods = false)
+	@ConditionalOnBlockingDiscoveryEnabled
+	@Order(REACTIVE_SERVICE_INSTANCE_SUPPLIER_ORDER + 1)
+	public static class BlockingSupportConfiguration {
+
+		@Bean
+		@ConditionalOnBean(DiscoveryClient.class)
+		@ConditionalOnMissingBean
+		@ConditionalOnProperty(value = "spring.cloud.loadbalancer.configurations", havingValue = "default", matchIfMissing = true)
+		public ServiceInstanceListSupplier discoveryClientServiceInstanceListSupplier(
+				ConfigurableApplicationContext context) {
+			return ServiceInstanceListSupplier.builder().withBlockingDiscoveryClient()
+					.build(context);
+		}
+
+		@Bean
+		@ConditionalOnBean(DiscoveryClient.class)
+		@ConditionalOnMissingBean
+		@ConditionalOnProperty(value = "spring.cloud.loadbalancer.configurations", havingValue = "zone-preference")
+		public ServiceInstanceListSupplier zonePreferenceDiscoveryClientServiceInstanceListSupplier(
+				ConfigurableApplicationContext context) {
+			return ServiceInstanceListSupplier.builder().withBlockingDiscoveryClient()
+					.withZonePreference().build(context);
+		}
+
+	}
+
+}

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -68,5 +68,11 @@
       "name": "spring.cloud.nacos.password",
       "type": "java.lang.String",
       "description": "nacos password to authenticate."
+    },
+    {
+      "name": "spring.cloud.loadbalancer.nacos.enabled",
+      "type": "java.lang.Boolean",
+      "defaultValue": false,
+      "description": "Integrate LoadBalancer or not."
     }
 ]}

spring-cloud-alibaba-starters/spring-cloud-starter-alibaba-nacos-discovery/src/main/resources/META-INF/spring.factories

@@ -5,6 +5,7 @@ org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
   com.alibaba.cloud.nacos.discovery.NacosDiscoveryClientConfiguration,\
   com.alibaba.cloud.nacos.discovery.reactive.NacosReactiveDiscoveryClientConfiguration,\
   com.alibaba.cloud.nacos.discovery.configclient.NacosConfigServerAutoConfiguration,\
+  com.alibaba.cloud.nacos.loadbalancer.LoadBalancerNacosAutoConfiguration,\
   com.alibaba.cloud.nacos.NacosServiceAutoConfiguration
 org.springframework.cloud.bootstrap.BootstrapConfiguration=\
   com.alibaba.cloud.nacos.discovery.configclient.NacosDiscoveryClientConfigServiceBootstrapConfiguration