add feature-env examples (#450)

CHANGELOG.md

@@ -6,6 +6,7 @@
 - [Feature: Optimized configuration update](https://github.com/Tencent/spring-cloud-tencent/pull/423)
 - [[Optimize] improve load-balance ut and support configurable heartbeat interval](https://github.com/Tencent/spring-cloud-tencent/pull/427)
 - [Feature: add feature-env plugin & add spring cloud gateway staining plugin](https://github.com/Tencent/spring-cloud-tencent/pull/428)
+- [Feature: add feature env examples](https://github.com/Tencent/spring-cloud-tencent/pull/450)
 - [Optimize: add EncodeTransferMedataRestTemplateInterceptor to RestTemplate](https://github.com/Tencent/spring-cloud-tencent/pull/434)
 - [feat:enhance Feign and RestTemplate and support Polaris monitor.](https://github.com/Tencent/spring-cloud-tencent/pull/435)
 - [Optimize: Specification apollo code reference notes](https://github.com/Tencent/spring-cloud-tencent/pull/442)

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

@@ -107,6 +107,7 @@ public class PolarisLoadBalancerCompositeRule extends AbstractLoadBalancerRule {
 			return null;
 		}
 
+		ILoadBalancer loadBalancer = new SimpleLoadBalancer();
 		// 2. filter by router
 		if (key instanceof PolarisRouterContext) {
 			PolarisRouterContext routerContext = (PolarisRouterContext) key;
@@ -114,10 +115,12 @@ public class PolarisLoadBalancerCompositeRule extends AbstractLoadBalancerRule {
 			// 3. filter by load balance.
 			// A LoadBalancer needs to be regenerated for each request,
 			// because the list of servers may be different after filtered by router
-			ILoadBalancer loadBalancer = new SimpleLoadBalancer();
 			loadBalancer.addServers(serversAfterRouter);
-			delegateRule.setLoadBalancer(loadBalancer);
 		}
+		else {
+			loadBalancer.addServers(allServers);
+		}
+		delegateRule.setLoadBalancer(loadBalancer);
 
 		return delegateRule.choose(key);
 	}

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

@@ -103,16 +103,10 @@ public class RouterLabelFeignInterceptor implements RequestInterceptor, Ordered
 		}
 
 		// labels from downstream
-		Map<String, String> transitiveLabels = MetadataContextHolder.get()
+		Map<String, String> transitiveLabels = MetadataContextHolder.get().getFragmentContext(MetadataContext.FRAGMENT_TRANSITIVE);
-				.getFragmentContext(MetadataContext.FRAGMENT_TRANSITIVE);
 		labels.putAll(transitiveLabels);
 
 		// pass label by header
-		if (labels.size() == 0) {
-			requestTemplate.header(RouterConstants.ROUTER_LABEL_HEADER);
-			return;
-		}
-
 		String encodedLabelsContent;
 		try {
 			encodedLabelsContent = URLEncoder.encode(JacksonUtils.serialize2Json(labels), UTF_8);

spring-cloud-tencent-examples/polaris-router-featureenv-example/README-zh.md

@@ -0,0 +1,152 @@
+# 多测试环境样例说明
+
+## 一、部署结构
+
+<img src="./imgs/structs.png"/>
+
+如上图所示，一共有三个环境：
+1. 基线环境，包含 FrontService、MiddleService、BackendService
+2. feature1 环境，包含 MiddleService、BackendService
+3. feature2 环境，包含 FrontService、BackendService
+
+并且在入口处，部署网关服务。
+
+三条请求链路：
+1. 基线环境链路，Gateway -> FrontService(基线) -> MiddleService(基线) -> BackendService(基线)
+2. feature1 环境链路，Gateway -> FrontService(基线) -> MiddleService(feature1) -> BackendService(feature1)
+3. feature2 环境链路，Gateway -> FrontService(feature2) -> MiddleService(基线) -> BackendService(feature2)
+
+
+## 二、运行样例
+
+无需任何代码变更，直接启动 base、feature1、feature2、featureenv-gateway 下所有应用即可。
+
+应用默认指向北极星官方的体验环境，启动成功后可直接到体验站点查看服务注册数据。
+
+- 管控台地址： http://14.116.241.63:8080/
+    - 账号：polaris
+    - 密码：polaris
+
+## 三、测试
+
+### 方式一：客户端打标
+
+#### 基线环境链路
+````
+curl http://127.0.0.1:9999/featureenv-front-example/router/rest
+````
+响应结果（base 表示基线环境）
+````
+featureenv-front-example[base] -> featureenv-middle-example[base] -> featureenv-backend-example[base]
+````
+
+#### feature1 环境链路
+
+通过 X-Polaris-Metadata-Transitive-featureenv 请求头指定特性环境。
+
+````
+curl -H'X-Polaris-Metadata-Transitive-featureenv:feature1' http://127.0.0.1:9999/featureenv-front-example/router/rest
+````
+响应结果
+````
+featureenv-front-example[base] -> featureenv-middle-example[feature1] -> featureenv-backend-example[feature1]
+````
+
+#### feature2 环境链路
+
+通过 X-Polaris-Metadata-Transitive-featureenv 请求头指定特性环境。
+
+````
+curl -H'X-Polaris-Metadata-Transitive-featureenv:feature2' http://127.0.0.1:9999/featureenv-front-example/router/rest
+````
+响应结果
+````
+featureenv-front-example[feature2] -> featureenv-middle-example[base] -> featureenv-backend-example[feature2]
+````
+
+### 方式二：网关流量染色
+
+模拟一种实际的场景，假设客户端请求有一个 uid 请求参数，期望:
+1. uid=1000 的请求打到 feature1 环境
+2. uid=2000 的请求打到 feature2 环境
+3. 其它 uid 的请求打到基线环境
+                           
+**配置染色规则**
+
+配置地址：http://14.116.241.63:8080/#/filegroup-detail?group=featureenv-gateway&namespace=default
+
+修改 rule/staining.json 配置文件，填写以下规则:
+
+````json
+{
+    "rules":[
+        {
+            "conditions":[
+                {
+                    "key":"${http.query.uid}",
+                    "values":["1000"],
+                    "operation":"EQUAL"
+                }
+            ],
+            "labels":[
+                {
+                    "key":"featureenv",
+                    "value":"feature1"
+                }
+            ]
+        },
+        {
+            "conditions":[
+                {
+                    "key":"${http.query.uid}",
+                    "values":["2000"],
+                    "operation":"EQUAL"
+                }
+            ],
+            "labels":[
+                {
+                    "key":"featureenv",
+                    "value":"feature2"
+                }
+            ]
+        }
+    ]
+}
+````
+
+填写完后发布配置即可。
+
+#### 基线环境链路
+````
+curl http://127.0.0.1:9999/featureenv-front-example/router/rest?uid=3000
+````
+响应结果（base 表示基线环境）
+````
+featureenv-front-example[base] -> featureenv-middle-example[base] -> featureenv-backend-example[base]
+````
+
+#### feature1 环境链路
+
+通过 X-Polaris-Metadata-Transitive-featureenv 请求头指定特性环境。
+
+````
+curl http://127.0.0.1:9999/featureenv-front-example/router/rest?uid=1000
+````
+响应结果
+````
+featureenv-front-example[base] -> featureenv-middle-example[feature1] -> featureenv-backend-example[feature1]
+````
+
+#### feature2 环境链路
+
+通过 X-Polaris-Metadata-Transitive-featureenv 请求头指定特性环境。
+
+````
+curl http://127.0.0.1:9999/featureenv-front-example/router/rest?uid=2000
+````
+响应结果
+````
+featureenv-front-example[feature2] -> featureenv-middle-example[base] -> featureenv-backend-example[feature2]
+````
+
+

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

@@ -0,0 +1,16 @@
+<?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-featureenv-base</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>base-backend</artifactId>
+
+
+</project>

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-backend/src/main/java/com/tencent/cloud/polaris/router/featureenv/basebackend/BackendController.java

@@ -0,0 +1,44 @@
+/*
+ * 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.featureenv.basebackend;
+
+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;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@RestController
+@RequestMapping("/router")
+public class BackendController {
+
+	@Value("${spring.application.name}")
+	private String appName;
+
+	/**
+	 * Get information of callee.
+	 * @return information of callee
+	 */
+	@GetMapping("/rest")
+	public String rest() {
+		return appName + "[base]";
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-backend/src/main/java/com/tencent/cloud/polaris/router/featureenv/basebackend/BaseBackendApplication.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.featureenv.basebackend;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@SpringBootApplication
+@EnableFeignClients
+public class BaseBackendApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(BaseBackendApplication.class, args);
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-backend/src/main/resources/bootstrap.yml

@@ -0,0 +1,15 @@
+server:
+  session-timeout: 1800
+  port: 10002
+spring:
+  application:
+    name: featureenv-backend-example
+  cloud:
+    polaris:
+      address: grpc://183.47.111.80:8091
+      namespace: default
+      enabled: true
+logging:
+  level:
+    org.springframework.cloud.gateway: info
+    com.tencent.cloud.polaris: debug

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

@@ -0,0 +1,16 @@
+<?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-featureenv-base</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>base-front</artifactId>
+
+
+</project>

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-front/src/main/java/com/tencent/cloud/polaris/router/featureenv/basefront/BaseFrontApplication.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.featureenv.basefront;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@SpringBootApplication
+@EnableFeignClients
+public class BaseFrontApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(BaseFrontApplication.class, args);
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-front/src/main/java/com/tencent/cloud/polaris/router/featureenv/basefront/FrontController.java

@@ -0,0 +1,51 @@
+/*
+ * 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.featureenv.basefront;
+
+import org.springframework.beans.factory.annotation.Autowired;
+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;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@RestController
+@RequestMapping("/router")
+public class FrontController {
+
+	@Value("${spring.application.name}")
+	private String appName;
+
+	@Autowired
+	private MiddleService middleService;
+
+	/**
+	 * Get information of callee.
+	 * @return information of callee
+	 */
+	@GetMapping("/rest")
+	public String rest() {
+		String curName = appName + "[base]";
+		String resp = middleService.rest();
+
+		return curName + " -> " + resp;
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-front/src/main/java/com/tencent/cloud/polaris/router/featureenv/basefront/MiddleService.java

@@ -0,0 +1,33 @@
+/*
+ * 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.featureenv.basefront;
+
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@FeignClient("featureenv-middle-example")
+public interface MiddleService {
+
+	@GetMapping("/router/rest")
+	String rest();
+
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-front/src/main/resources/bootstrap.yml

@@ -0,0 +1,15 @@
+server:
+  session-timeout: 1800
+  port: 10000
+spring:
+  application:
+    name: featureenv-front-example
+  cloud:
+    polaris:
+      address: grpc://183.47.111.80:8091
+      namespace: default
+      enabled: true
+logging:
+  level:
+    org.springframework.cloud.gateway: info
+    com.tencent.cloud.polaris: debug

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

@@ -0,0 +1,18 @@
+<?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-featureenv-base</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>base-middle</artifactId>
+
+
+
+</project>

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-middle/src/main/java/com/tencent/cloud/polaris/router/featureenv/basemiddle/BackendService.java

@@ -0,0 +1,33 @@
+/*
+ * 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.featureenv.basemiddle;
+
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@FeignClient("featureenv-backend-example")
+public interface BackendService {
+
+	@GetMapping("/router/rest")
+	String rest();
+
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-middle/src/main/java/com/tencent/cloud/polaris/router/featureenv/basemiddle/BaseMiddleApplication.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.featureenv.basemiddle;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@SpringBootApplication
+@EnableFeignClients
+public class BaseMiddleApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(BaseMiddleApplication.class, args);
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-middle/src/main/java/com/tencent/cloud/polaris/router/featureenv/basemiddle/MiddleController.java

@@ -0,0 +1,51 @@
+/*
+ * 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.featureenv.basemiddle;
+
+import org.springframework.beans.factory.annotation.Autowired;
+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;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@RestController
+@RequestMapping("/router")
+public class MiddleController {
+
+	@Value("${spring.application.name}")
+	private String appName;
+
+	@Autowired
+	private BackendService backendService;
+
+	/**
+	 * Get information of callee.
+	 * @return information of callee
+	 */
+	@GetMapping("/rest")
+	public String rest() {
+		String curName = appName + "[base]";
+		String resp = backendService.rest();
+
+		return curName + " -> " + resp;
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/base/base-middle/src/main/resources/bootstrap.yml

@@ -0,0 +1,15 @@
+server:
+  session-timeout: 1800
+  port: 10001
+spring:
+  application:
+    name: featureenv-middle-example
+  cloud:
+    polaris:
+      address: grpc://183.47.111.80:8091
+      namespace: default
+      enabled: true
+logging:
+  level:
+    org.springframework.cloud.gateway: info
+    com.tencent.cloud.polaris: debug

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

@@ -0,0 +1,33 @@
+<?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-featureenv-example</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>polaris-router-featureenv-base</artifactId>
+	<packaging>pom</packaging>
+
+	<modules>
+		<module>base-front</module>
+		<module>base-middle</module>
+		<module>base-backend</module>
+	</modules>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-openfeign</artifactId>
+		</dependency>
+	</dependencies>
+</project>

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature1/feature1-backend/pom.xml

@@ -0,0 +1,16 @@
+<?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>feature1</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>feature1-backend</artifactId>
+
+
+</project>

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature1/feature1-backend/src/main/java/com/tencent/cloud/polaris/router/featureenv/feature1backend/BackendController.java

@@ -0,0 +1,51 @@
+/*
+ * 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.featureenv.feature1backend;
+
+import com.tencent.cloud.common.metadata.StaticMetadataManager;
+
+import org.springframework.beans.factory.annotation.Autowired;
+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;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@RestController
+@RequestMapping("/router")
+public class BackendController {
+
+	@Autowired
+	private StaticMetadataManager staticMetadataManager;
+
+	@Value("${spring.application.name}")
+	private String appName;
+
+	/**
+	 * Get information of callee.
+	 * @return information of callee
+	 */
+	@GetMapping("/rest")
+	public String rest() {
+		String featureEnv = staticMetadataManager.getMergedStaticMetadata().get("featureenv");
+		return appName + "[" + featureEnv + "]";
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature1/feature1-backend/src/main/java/com/tencent/cloud/polaris/router/featureenv/feature1backend/Feature1BackendApplication.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.featureenv.feature1backend;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@SpringBootApplication
+@EnableFeignClients
+public class Feature1BackendApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(Feature1BackendApplication.class, args);
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature1/feature1-backend/src/main/resources/bootstrap.yml

@@ -0,0 +1,19 @@
+server:
+  session-timeout: 1800
+  port: 11002
+spring:
+  application:
+    name: featureenv-backend-example
+  cloud:
+    polaris:
+      address: grpc://183.47.111.80:8091
+      namespace: default
+      enabled: true
+    tencent:
+      metadata:
+        content:
+          featureenv: feature1
+logging:
+  level:
+    org.springframework.cloud.gateway: info
+    com.tencent.cloud.polaris: debug

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature1/feature1-middle/pom.xml

@@ -0,0 +1,16 @@
+<?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>feature1</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>feature1-middle</artifactId>
+
+
+</project>

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature1/feature1-middle/src/main/java/com/tencent/cloud/polaris/router/featureenv/feature1middle/BackendService.java

@@ -0,0 +1,33 @@
+/*
+ * 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.featureenv.feature1middle;
+
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@FeignClient("featureenv-backend-example")
+public interface BackendService {
+
+	@GetMapping("/router/rest")
+	String rest();
+
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature1/feature1-middle/src/main/java/com/tencent/cloud/polaris/router/featureenv/feature1middle/Feature1MiddleApplication.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.featureenv.feature1middle;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@SpringBootApplication
+@EnableFeignClients
+public class Feature1MiddleApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(Feature1MiddleApplication.class, args);
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature1/feature1-middle/src/main/java/com/tencent/cloud/polaris/router/featureenv/feature1middle/MiddleController.java

@@ -0,0 +1,58 @@
+/*
+ * 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.featureenv.feature1middle;
+
+import com.tencent.cloud.common.metadata.StaticMetadataManager;
+
+import org.springframework.beans.factory.annotation.Autowired;
+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;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@RestController
+@RequestMapping("/router")
+public class MiddleController {
+
+	@Value("${spring.application.name}")
+	private String appName;
+
+	@Autowired
+	private BackendService backendService;
+
+	@Autowired
+	private StaticMetadataManager staticMetadataManager;
+
+	/**
+	 * Get information of callee.
+	 * @return information of callee
+	 */
+	@GetMapping("/rest")
+	public String rest() {
+		String featureEnv = staticMetadataManager.getMergedStaticMetadata().get("featureenv");
+
+		String curName = appName + "[" + featureEnv + "]";
+		String resp = backendService.rest();
+
+		return curName + " -> " + resp;
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature1/feature1-middle/src/main/resources/bootstrap.yml

@@ -0,0 +1,19 @@
+server:
+  session-timeout: 1800
+  port: 11001
+spring:
+  application:
+    name: featureenv-middle-example
+  cloud:
+    polaris:
+      address: grpc://183.47.111.80:8091
+      namespace: default
+      enabled: true
+    tencent:
+      metadata:
+        content:
+          featureenv: feature1
+logging:
+  level:
+    org.springframework.cloud.gateway: info
+    com.tencent.cloud.polaris: debug

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature1/pom.xml

@@ -0,0 +1,32 @@
+<?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-featureenv-example</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>feature1</artifactId>
+	<packaging>pom</packaging>
+
+	<modules>
+		<module>feature1-middle</module>
+		<module>feature1-backend</module>
+	</modules>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-openfeign</artifactId>
+		</dependency>
+	</dependencies>
+</project>

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature2/feature2-backend/pom.xml

@@ -0,0 +1,16 @@
+<?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>feature2</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>feature2-backend</artifactId>
+
+
+</project>

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature2/feature2-backend/src/main/java/com/tencent/cloud/polaris/router/featureenv/feature2backend/BackendController.java

@@ -0,0 +1,51 @@
+/*
+ * 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.featureenv.feature2backend;
+
+import com.tencent.cloud.common.metadata.StaticMetadataManager;
+
+import org.springframework.beans.factory.annotation.Autowired;
+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;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@RestController
+@RequestMapping("/router")
+public class BackendController {
+
+	@Autowired
+	private StaticMetadataManager staticMetadataManager;
+
+	@Value("${spring.application.name}")
+	private String appName;
+
+	/**
+	 * Get information of callee.
+	 * @return information of callee
+	 */
+	@GetMapping("/rest")
+	public String rest() {
+		String featureEnv = staticMetadataManager.getMergedStaticMetadata().get("featureenv");
+		return appName + "[" + featureEnv + "]";
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature2/feature2-backend/src/main/java/com/tencent/cloud/polaris/router/featureenv/feature2backend/Feature2BackendApplication.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.featureenv.feature2backend;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@SpringBootApplication
+@EnableFeignClients
+public class Feature2BackendApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(Feature2BackendApplication.class, args);
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature2/feature2-backend/src/main/resources/bootstrap.yml

@@ -0,0 +1,19 @@
+server:
+  session-timeout: 1800
+  port: 12002
+spring:
+  application:
+    name: featureenv-backend-example
+  cloud:
+    polaris:
+      address: grpc://183.47.111.80:8091
+      namespace: default
+      enabled: true
+    tencent:
+      metadata:
+        content:
+          featureenv: feature2
+logging:
+  level:
+    org.springframework.cloud.gateway: info
+    com.tencent.cloud.polaris: debug

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature2/feature2-front/pom.xml

@@ -0,0 +1,17 @@
+<?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>feature2</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>feature2-front</artifactId>
+
+
+
+</project>

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature2/feature2-front/src/main/java/com/tencent/cloud/polaris/router/featureenv/feature2front/Feature2FrontApplication.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.featureenv.feature2front;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.cloud.openfeign.EnableFeignClients;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@SpringBootApplication
+@EnableFeignClients
+public class Feature2FrontApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(Feature2FrontApplication.class, args);
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature2/feature2-front/src/main/java/com/tencent/cloud/polaris/router/featureenv/feature2front/FrontController.java

@@ -0,0 +1,58 @@
+/*
+ * 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.featureenv.feature2front;
+
+import com.tencent.cloud.common.metadata.StaticMetadataManager;
+
+import org.springframework.beans.factory.annotation.Autowired;
+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;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@RestController
+@RequestMapping("/router")
+public class FrontController {
+
+	@Autowired
+	private StaticMetadataManager staticMetadataManager;
+
+	@Value("${spring.application.name}")
+	private String appName;
+
+	@Autowired
+	private MiddleService middleService;
+
+	/**
+	 * Get information of callee.
+	 * @return information of callee
+	 */
+	@GetMapping("/rest")
+	public String rest() {
+		String featureEnv = staticMetadataManager.getMergedStaticMetadata().get("featureenv");
+
+		String curName = appName + "[" + featureEnv + "]";
+		String resp = middleService.rest();
+
+		return curName + " -> " + resp;
+	}
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature2/feature2-front/src/main/java/com/tencent/cloud/polaris/router/featureenv/feature2front/MiddleService.java

@@ -0,0 +1,33 @@
+/*
+ * 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.featureenv.feature2front;
+
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@FeignClient("featureenv-middle-example")
+public interface MiddleService {
+
+	@GetMapping("/router/rest")
+	String rest();
+
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature2/feature2-front/src/main/resources/bootstrap.yml

@@ -0,0 +1,19 @@
+server:
+  session-timeout: 1800
+  port: 12000
+spring:
+  application:
+    name: featureenv-front-example
+  cloud:
+    polaris:
+      address: grpc://183.47.111.80:8091
+      namespace: default
+      enabled: true
+    tencent:
+      metadata:
+        content:
+          featureenv: feature2
+logging:
+  level:
+    org.springframework.cloud.gateway: info
+    com.tencent.cloud.polaris: debug

spring-cloud-tencent-examples/polaris-router-featureenv-example/feature2/pom.xml

@@ -0,0 +1,32 @@
+<?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-featureenv-example</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>feature2</artifactId>
+	<packaging>pom</packaging>
+
+	<modules>
+		<module>feature2-front</module>
+		<module>feature2-backend</module>
+	</modules>
+	
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-openfeign</artifactId>
+		</dependency>
+	</dependencies>
+</project>

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

@@ -0,0 +1,30 @@
+<?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-featureenv-example</artifactId>
+		<groupId>com.tencent.cloud</groupId>
+		<version>${revision}</version>
+		<relativePath>../pom.xml</relativePath>
+	</parent>
+	<modelVersion>4.0.0</modelVersion>
+
+	<artifactId>featureenv-gateway</artifactId>
+
+
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.cloud</groupId>
+			<artifactId>spring-cloud-starter-gateway</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.tencent.cloud</groupId>
+			<artifactId>spring-cloud-tencent-gateway-plugin</artifactId>
+		</dependency>
+		<dependency>
+			<groupId>com.tencent.cloud</groupId>
+			<artifactId>spring-cloud-tencent-featureenv-plugin</artifactId>
+		</dependency>
+	</dependencies>
+</project>

spring-cloud-tencent-examples/polaris-router-featureenv-example/featureenv-gateway/src/main/java/com/tencent/cloud/polaris/featureenv/gateway/FeatureEnvScgApplication.java

@@ -0,0 +1,33 @@
+/*
+ * 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.featureenv.gateway;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+/**
+ * @author lepdou 2022-07-20
+ */
+@SpringBootApplication
+public class FeatureEnvScgApplication {
+
+	public static void main(String[] args) {
+		SpringApplication.run(FeatureEnvScgApplication.class, args);
+	}
+
+}

spring-cloud-tencent-examples/polaris-router-featureenv-example/featureenv-gateway/src/main/resources/bootstrap.yml

@@ -0,0 +1,68 @@
+server:
+  session-timeout: 1800
+  port: 9999
+spring:
+  application:
+    name: featureenv-gateway
+  cloud:
+    tencent:
+      plugin:
+        scg: 
+          staining:
+            enabled: true
+            rule-staining:
+              enabled: true
+        router:
+          feature-env:
+            enabled: true
+    polaris:
+      address: grpc://183.47.111.80:8091
+      namespace: default
+      enabled: true
+    gateway:
+      discovery:
+        locator:
+          enabled: true
+          'predicates[0]':
+            name: Path
+            args:
+              patterns: '''/'' + serviceId + ''/**'''
+          'filters[0]':
+            name: RewritePath
+            args:
+              regexp: '''/'' + serviceId + ''/(?<remaining>.*)'''
+              replacement: '''/$\{remaining}'''
+          'filters[1]':
+            name: Retry
+            args:
+              retries: 3
+              exceptions:
+                '[0]': '''java.net.ConnectException'''
+                '[1]': '''java.io.IOException'''
+              statuses:
+                '[0]': '''BAD_GATEWAY'''
+                '[1]': '''SERVICE_UNAVAILABLE'''
+              series:
+                '[0]': '''CLIENT_ERROR'''
+              methods:
+                '[0]': '''GET'''
+                '[1]': '''POST'''
+                '[2]': '''PUT'''
+                '[3]': '''DELETE'''
+              backoff:
+                firstBackoff: '''100ms'''
+                maxBackoff: '''500ms'''
+                factor: 2
+                basedOnPreviousValue: false
+      routes:
+        - id: featureenv-front-example
+          uri: lb://featureenv-front-example
+          predicates:
+            - Path=/featureenv-front-example/**
+          filters:
+            - StripPrefix=1
+
+logging:
+  level:
+    org.springframework.cloud.gateway: info
+    com.tencent.cloud.polaris: debug

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

@@ -0,0 +1,34 @@
+<?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-featureenv-example</artifactId>
+	<packaging>pom</packaging>
+
+	<modules>
+		<module>base</module>
+		<module>feature1</module>
+		<module>feature2</module>
+		<module>featureenv-gateway</module>
+	</modules>
+	
+	<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-tencent-featureenv-plugin</artifactId>
+		</dependency>
+	</dependencies>
+</project>

spring-cloud-tencent-examples/pom.xml

@@ -24,6 +24,7 @@
 		<module>polaris-router-example</module>
 		<module>metadata-transfer-example</module>
 		<module>polaris-router-grayrelease-example</module>
+		<module>polaris-router-featureenv-example</module>
 	</modules>
 
     <properties>