add router example & fix router bug

CHANGELOG.md

@@ -1,19 +1,8 @@
 # Change Log
 ---
 
-- [the server address only support one ip](https://github.com/Tencent/spring-cloud-tencent/pull/36)
+
-- [feature: get service list by given namespace](https://github.com/Tencent/spring-cloud-tencent/pull/38)
+
-- [feat:Support multi-discovery server.](https://github.com/Tencent/spring-cloud-tencent/pull/42)
+
-- [fix:fix [Deserialization of Untrusted Data in logback]](https://github.com/Tencent/spring-cloud-tencent/pull/44/files)
+- [Bugfix: fix router bug and add router example](https://github.com/Tencent/spring-cloud-tencent/pull/109)
-- [feat:support customize registered ip address.](https://github.com/Tencent/spring-cloud-tencent/pull/47)
-- [fix:fix import default log implement error](https://github.com/Tencent/spring-cloud-tencent/pull/53)
-- [send heartbeat if healthcheck url not configured](https://github.com/Tencent/spring-cloud-tencent/pull/54)
-- [feat:optimize project structure and checkstyle](https://github.com/Tencent/spring-cloud-tencent/pull/56)
-- [feat:divide storage and transfer of metadata.](https://github.com/Tencent/spring-cloud-tencent/pull/63)
-- [feat:support polaris config center.](https://github.com/Tencent/spring-cloud-tencent/pull/69)
-- [feat:optimize metadata module.](https://github.com/Tencent/spring-cloud-tencent/pull/70)
-- [feat: optimize pom dependency and demo](https://github.com/Tencent/spring-cloud-tencent/pull/71)
-- [feat:upgrade polaris version to 1.3.0.](https://github.com/Tencent/spring-cloud-tencent/pull/72)
-- [feat:rollback init polaris-context to application phase](https://github.com/Tencent/spring-cloud-tencent/pull/73)
-- [fix:fix junit not working bug.](https://github.com/Tencent/spring-cloud-tencent/pull/96)
 

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

@@ -49,7 +49,7 @@ public class PolarisServiceDiscovery {
 	 */
 	public List<ServiceInstance> getInstances(String serviceId) throws PolarisException {
 		List<ServiceInstance> instances = new ArrayList<>();
-		InstancesResponse filteredInstances = polarisDiscoveryHandler.getFilteredInstances(serviceId);
+		InstancesResponse filteredInstances = polarisDiscoveryHandler.getInstances(serviceId);
 		ServiceInstances serviceInstances = filteredInstances.toServiceInstances();
 		for (Instance instance : serviceInstances.getInstances()) {
 			instances.add(new PolarisServiceInstance(instance));

spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/PolarisRouterServiceInstanceListSupplier.java

@@ -78,7 +78,7 @@ public class PolarisRouterServiceInstanceListSupplier extends DelegatingServiceI
 					"PolarisRoutingLoadBalancer only Server with AppName or ServiceIdForDiscovery attribute");
 		}
 		ServiceKey serviceKey = new ServiceKey(MetadataContext.LOCAL_NAMESPACE, serviceName);
-		List<Instance> instances = new ArrayList<>(8);
+		List<Instance> instances = new ArrayList<>(allServers.size());
 		for (ServiceInstance server : allServers) {
 			DefaultInstance instance = new DefaultInstance();
 			instance.setNamespace(MetadataContext.LOCAL_NAMESPACE);
@@ -88,6 +88,7 @@ public class PolarisRouterServiceInstanceListSupplier extends DelegatingServiceI
 			instance.setHost(server.getHost());
 			instance.setPort(server.getPort());
 			instance.setWeight(100);
+			instance.setMetadata(server.getMetadata());
 			instances.add(instance);
 		}
 		serviceInstances = new DefaultServiceInstances(serviceKey, instances);

spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/config/PolarisLoadBalancerClientConfiguration.java

@@ -71,7 +71,6 @@ public class PolarisLoadBalancerClientConfiguration {
 
 		@Bean
 		@ConditionalOnBean(ReactiveDiscoveryClient.class)
-		@ConditionalOnMissingBean
 		@ConditionalOnProperty(value = "spring.cloud.loadbalancer.configurations", havingValue = "polaris")
 		public ServiceInstanceListSupplier polarisRouterDiscoveryClientServiceInstanceListSupplier(RouterAPI routerAPI,
 				ConfigurableApplicationContext context) {
@@ -88,7 +87,6 @@ public class PolarisLoadBalancerClientConfiguration {
 
 		@Bean
 		@ConditionalOnBean(DiscoveryClient.class)
-		@ConditionalOnMissingBean
 		@ConditionalOnProperty(value = "spring.cloud.loadbalancer.configurations", havingValue = "polaris")
 		public ServiceInstanceListSupplier polarisRouterDiscoveryClientServiceInstanceListSupplier(RouterAPI routerAPI,
 				ConfigurableApplicationContext context) {

spring-cloud-tencent-examples/polaris-router-example/pom.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<parent>
+		<artifactId>spring-cloud-tencent-examples</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>polaris-router-example</artifactId>
+	<packaging>pom</packaging>
+
+	<modules>
+		<module>router-callee-service1</module>
+		<module>router-callee-service2</module>
+		<module>router-caller-service</module>
+	</modules>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-actuator</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-openfeign</artifactId>
+		</dependency>
+	</dependencies>
+
+</project>

spring-cloud-tencent-examples/polaris-router-example/router-callee-service1/pom.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<parent>
+		<artifactId>polaris-router-example</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>router-callee-service1</artifactId>
+
+	<dependencies>
+		<dependency>
+			<groupId>com.tencent.cloud</groupId>
+			<artifactId>spring-cloud-starter-tencent-polaris-discovery</artifactId>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+				<executions>
+					<execution>
+						<goals>
+							<goal>repackage</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-source-plugin</artifactId>
+				<version>3.2.0</version>
+				<executions>
+					<execution>
+						<id>attach-sources</id>
+						<goals>
+							<goal>jar</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+</project>

spring-cloud-tencent-examples/polaris-router-example/router-callee-service1/src/main/java/com/tencent/cloud/polaris/router/example/RouterCalleeApplication1.java

@@ -0,0 +1,34 @@
+/*
+ * Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * 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.tencent.cloud.polaris.router.example;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * Router callee application.
+ *@author lepdou 2022-04-06
+ */
+@SpringBootApplication
+public class RouterCalleeApplication1 {
+
+	public static void main(String[] args) {
+		SpringApplication.run(RouterCalleeApplication1.class, args);
+	}
+}

spring-cloud-tencent-examples/polaris-router-example/router-callee-service1/src/main/java/com/tencent/cloud/polaris/router/example/RouterCalleeController.java

@@ -0,0 +1,52 @@
+/*
+ * Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * 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.tencent.cloud.polaris.router.example;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * Discovery callee controller.
+ *
+ * @author lepdou 2022-04-06
+ */
+@RestController
+@RequestMapping("/router/service/callee")
+public class RouterCalleeController {
+
+	private static Logger LOG = LoggerFactory.getLogger(RouterCalleeController.class);
+
+	@Value("${server.port:0}")
+	private int port;
+
+	/**
+	 * Get information of callee.
+	 * @return information of callee
+	 */
+	@GetMapping("/info")
+	public String info() {
+		LOG.info("Discovery Service Callee [{}] is called.", port);
+		return String.format("Discovery Service Callee [%s] is called.", port);
+	}
+}

spring-cloud-tencent-examples/polaris-router-example/router-callee-service1/src/main/resources/bootstrap.yml

@@ -0,0 +1,13 @@
+server:
+  port: 48081
+spring:
+  application:
+    name: RouterCalleeService
+  cloud:
+    tencent:
+      metadata:
+        content:
+          label1: value1
+    polaris:
+      address: grpc://127.0.0.1:8091
+      namespace: default

spring-cloud-tencent-examples/polaris-router-example/router-callee-service2/pom.xml

@@ -0,0 +1,50 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<parent>
+		<artifactId>polaris-router-example</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>router-callee-service2</artifactId>
+
+	<dependencies>
+		<dependency>
+			<groupId>com.tencent.cloud</groupId>
+			<artifactId>spring-cloud-starter-tencent-polaris-discovery</artifactId>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+				<executions>
+					<execution>
+						<goals>
+							<goal>repackage</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-source-plugin</artifactId>
+				<version>3.2.0</version>
+				<executions>
+					<execution>
+						<id>attach-sources</id>
+						<goals>
+							<goal>jar</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+</project>

spring-cloud-tencent-examples/polaris-router-example/router-callee-service2/src/main/java/com/tencent/cloud/polaris/router/example/RouterCalleeApplication2.java

@@ -0,0 +1,34 @@
+/*
+ * Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * 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.tencent.cloud.polaris.router.example;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * Router callee application.
+ * @author lepdou 2022-04-06
+ */
+@SpringBootApplication
+public class RouterCalleeApplication2 {
+
+	public static void main(String[] args) {
+		SpringApplication.run(RouterCalleeApplication2.class, args);
+	}
+}

spring-cloud-tencent-examples/polaris-router-example/router-callee-service2/src/main/java/com/tencent/cloud/polaris/router/example/RouterCalleeController.java

@@ -0,0 +1,53 @@
+/*
+ * Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * 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.tencent.cloud.polaris.router.example;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+/**
+ * Discovery callee controller.
+ *
+ * @author lepdou 2022-04-06
+ */
+@RestController
+@RequestMapping("/router/service/callee")
+public class RouterCalleeController {
+
+	private static Logger LOG = LoggerFactory.getLogger(RouterCalleeController.class);
+
+	@Value("${server.port:0}")
+	private int port;
+
+	/**
+	 * Get information of callee.
+	 * @return information of callee
+	 */
+	@GetMapping("/info")
+	public String info() {
+		LOG.info("Discovery Service Callee [{}] is called.", port);
+		return String.format("Discovery Service Callee [%s] is called.", port);
+	}
+
+}

spring-cloud-tencent-examples/polaris-router-example/router-callee-service2/src/main/resources/bootstrap.yml

@@ -0,0 +1,13 @@
+server:
+  port: 48082
+spring:
+  application:
+    name: RouterCalleeService
+  cloud:
+    tencent:
+      metadata:
+        content:
+          label1: value2
+    polaris:
+      address: grpc://127.0.0.1:8091
+      namespace: default

spring-cloud-tencent-examples/polaris-router-example/router-caller-service/pom.xml

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+		 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+		 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<parent>
+		<artifactId>polaris-router-example</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>router-caller-service</artifactId>
+
+	<dependencies>
+		<dependency>
+			<groupId>com.tencent.cloud</groupId>
+			<artifactId>spring-cloud-starter-tencent-polaris-discovery</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>com.tencent.cloud</groupId>
+			<artifactId>spring-cloud-starter-tencent-polaris-router</artifactId>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+				<executions>
+					<execution>
+						<goals>
+							<goal>repackage</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-source-plugin</artifactId>
+				<version>3.2.0</version>
+				<executions>
+					<execution>
+						<id>attach-sources</id>
+						<goals>
+							<goal>jar</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

spring-cloud-tencent-examples/polaris-router-example/router-caller-service/src/main/java/com/tencent/cloud/polaris/router/example/RouterCalleeService.java

@@ -0,0 +1,35 @@
+/*
+ * Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * 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.tencent.cloud.polaris.router.example;
+
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+
+/**
+ * Router callee feign client.
+ *
+ * @author lepdou 2022-04-06
+ */
+@FeignClient("RouterCalleeService")
+public interface RouterCalleeService {
+
+	@GetMapping("/router/service/callee/info")
+	String info();
+
+}

spring-cloud-tencent-examples/polaris-router-example/router-caller-service/src/main/java/com/tencent/cloud/polaris/router/example/RouterCallerApplication.java

@@ -0,0 +1,48 @@
+/*
+ * Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * 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.tencent.cloud.polaris.router.example;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+import org.springframework.cloud.client.loadbalancer.LoadBalanced;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+import org.springframework.context.annotation.Bean;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * Router caller application.
+ *
+ *@author lepdou 2022-04-06
+ */
+@SpringBootApplication
+@EnableDiscoveryClient
+@EnableFeignClients
+public class RouterCallerApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(RouterCallerApplication.class, args);
+	}
+
+	@Bean
+	@LoadBalanced
+	public RestTemplate restTemplate() {
+		return new RestTemplate();
+	}
+}

spring-cloud-tencent-examples/polaris-router-example/router-caller-service/src/main/java/com/tencent/cloud/polaris/router/example/RouterCallerController.java

@@ -0,0 +1,71 @@
+/*
+ * Tencent is pleased to support the open source community by making Spring Cloud Tencent available.
+ *
+ * Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
+ *
+ * Licensed under the BSD 3-Clause License (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * https://opensource.org/licenses/BSD-3-Clause
+ *
+ * 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.tencent.cloud.polaris.router.example;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.client.RestTemplate;
+
+/**
+ * Discovery caller controller.
+ *
+ * @author lepdou 2022-04-06
+ */
+@RestController
+@RequestMapping("/router/service/caller")
+public class RouterCallerController {
+
+	@Autowired
+	private RestTemplate restTemplate;
+
+	@Autowired
+	private RouterCalleeService routerCalleeService;
+
+	/**
+	 * Get info of two value.
+	 * @return info
+	 */
+	@GetMapping("/feign")
+	public String feign() {
+		return routerCalleeService.info();
+	}
+
+	/**
+	 * Get information of callee.
+	 * @return information of callee
+	 */
+	@GetMapping("/rest")
+	public String rest() {
+		return restTemplate.getForObject(
+				"http://DiscoveryCalleeService/discovery/service/callee/info",
+				String.class);
+	}
+
+	/**
+	 * health check.
+	 * @return health check info
+	 */
+	@GetMapping("/healthCheck")
+	public String healthCheck() {
+		return "pk ok";
+	}
+
+}

spring-cloud-tencent-examples/polaris-router-example/router-caller-service/src/main/resources/bootstrap.yml

@@ -0,0 +1,11 @@
+server:
+  port: 48083
+spring:
+  application:
+    name: RouterCallerService
+  cloud:
+    loadbalancer:
+      configurations: polaris
+    polaris:
+      address: grpc://127.0.0.1:8091
+      namespace: default

spring-cloud-tencent-examples/pom.xml

@@ -21,6 +21,7 @@
         <module>polaris-circuitbreaker-example</module>
         <module>polaris-gateway-example</module>
 		<module>polaris-config-example</module>
+		<module>polaris-router-example</module>
 	</modules>
 
     <properties>