使用Spring Cloud Zuul實現動態路由

Zuul 是提供動態路由，監控，彈性，安全等的邊緣服務。Zuul 相當於是裝置和 Netflix 流應用的 Web 網站後端所有請求的前門。

Zuul 可以適當的對多個 Amazon Auto Scaling Groups 進行路由請求。

首先建立maven項目，加入如下依賴

<dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-netflix</artifactId><version>1.1.3.RELEASE</version><type>pom</type><scope>import</scope></dependency></dependencies></dependencyManagement><dependencies><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-hystrix</artifactId></dependency><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-zuul</artifactId></dependency></dependencies>

package com.pp.zuul;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.netflix.zuul.EnableZuulProxy;@EnableZuulProxy@SpringBootApplicationpublic class App  {    public static void main( String[] args ) {    SpringApplication.run(App.class, args);    }}

package com.pp.zuul;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;@RestControllerpublic class HomeController {@RequestMapping("/index")public Object index() {return "index";}@RequestMapping("/home")public Object home() {return "home";}}

設定檔：application.properties

server.port=8181#這裡的配置表示，訪問/baidu/** 直接重新導向到http://www.baidu.comzuul.routes.baidu.path=/baidu/**zuul.routes.baidu.url=http://www.baidu.com#反響代理配置#這裡的配置類似nginx的反響代理#當請求/api/**會直接交給listOfServers配置的伺服器處理#當stripPrefix=true的時候 （http://127.0.0.1:8181/api/user/list -> http://192.168.1.100:8080/user/list）#當stripPrefix=false的時候（http://127.0.0.1:8181/api/user/list -> http://192.168.1.100:8080/api/user/list）zuul.routes.api.path=/api/**zuul.routes.api.stripPrefix=falseapi.ribbon.listOfServers=192.168.1.100:8080,192.168.1.101:8080,192.168.1.102:8080#url重寫配置#這裡的配置，相當於訪問/index/** 會直接渲染/home的請求內容(和直接請求/home效果一樣), url地址不變zuul.routes.index.path=/index/**zuul.routes.index.url=forward:/home