fix:fix UnknownHostException (#292)

CHANGELOG.md

@@ -4,3 +4,4 @@
 - [Upgrade: fix third-party lib CVEs & upgrade core spring libs version](https://github.com/Tencent/spring-cloud-tencent/pull/263)
 - [feat:support reading configuration from application.yml or application.properties.](https://github.com/Tencent/spring-cloud-tencent/pull/262)
 - [fix:fix ClassNotFoundException while not importing openfeign when using circuit-breaker module.](https://github.com/Tencent/spring-cloud-tencent/pull/271)
+- [fix:solve ratelimit-callee-service UnknownHostException.](https://github.com/Tencent/spring-cloud-tencent/pull/292)

spring-cloud-tencent-examples/polaris-ratelimit-example/ratelimit-callee-service/pom.xml

@@ -18,6 +18,11 @@
 			<artifactId>spring-boot-starter-web</artifactId>
 		</dependency>
 
+        <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-ratelimit</artifactId>