# Spring Cloud Polaris Gateway example ## 样例简介 本样例将介绍如何在Spring Cloud项目中使用```spring-cloud-tencent-polaris-gateway```以使用其各项功能。 本样例包括```gateway-zuul-service```、```gateway-scg-service```和```gateway-callee-service```。```gateway-zuul-service```和```gateway-scg-service```调用```gateway-callee-service```。 ## 使用说明 ### 修改配置 配置如下所示。其中,${ip}和${port}为Polaris后端服务的IP地址与端口号。 ```yaml spring: application: name: ${application.name} cloud: polaris: address: ${ip}:${port} ``` ### 启动样例 #### 启动Polaris后端服务 参考[Polaris Getting Started](https://github.com/PolarisMesh/polaris#getting-started)。 #### 启动应用 - IDEA启动 分别启动```spring-cloud-tencent-examples/polaris-gateway-example/gateway-zuul-service```的```GatewayZuulService```、```spring-cloud-tencent-examples/polaris-gateway-example/gateway-scg-service```的```GatewayScgService```和```spring-cloud-tencent-examples/polaris-gateway-example/gateway-callee-service```的```GatewayCalleeService``` - Maven打包启动 在```spring-cloud-tencent-examples/polaris-gateway-example```下执行 ```sh mvn clean package ``` 然后在```gateway-zuul-service```、```gateway-scg-service```和```gateway-callee-service```下找到生成的jar包,运行 ``` java -jar ${app.jar} ``` 启动应用,其中${app.jar}替换为对应的jar包名。 ### 验证 #### Zuul调用 ```shell curl -L -X GET 'http://localhost:48082/GatewayCalleeService/gateway/example/callee/echo' -H 'SCT-CUSTOM-METADATA: {"b": 2}' ``` 预期返回值 ``` {"a":"1","b":2} ``` #### Spring-Cloud-Gateway调用 ```shell curl -L -X GET 'http://localhost:48083/GatewayCalleeService/gateway/example/callee/echo' -H 'SCT-CUSTOM-METADATA: {"b": 2}' ``` 预期返回值 ``` {"a":"1","b":2} ``` #### 网关限流 参考[Polaris RateLimit Example](../polaris-ratelimit-example/README-zh.md)