入门配置

入门配置

测试Gateway网关路由有两种配置方式

1、cloud-gateway-gateway9527 2、POM

<dependencies> <!--新增gateway--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-gateway</artifactId> </dependency> <dependency> <groupId>com.atguigu.springcloud</groupId> <artifactId>cloud-api-commons</artifactId> <version>1.0-SNAPSHOT</version> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-hystrix</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <scope>runtime</scope> <optional>true</optional> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies>

3、YML

server: port: 9527 spring: application: name: cloud-gateway cloud: gateway: routes: - id: payment_routh #路由的ID，没有固定规则但要求唯一，建议配合服务名 uri: http://localhost:8001 #匹配后提供服务的路由地址 predicates: - Path=/payment/get/** #断言,路径相匹配的进行路由 - id: payment_routh2 uri: http://localhost:8001 predicates: - Path=/payment/lb/** #断言,路径相匹配的进行路由 eureka: instance: hostname: cloud-gateway-service client: service-url: register-with-eureka: true fetch-registry: true defaultZone: http://eureka7001.com:7001/eure

4、主启动类

@SpringBootApplication @EnableEurekaClient public class GateWayMain9527 { public static void main(String[] args) { SpringApplication.run( GateWayMain9527.class,args); } }

测试

希望看到的效果：我们目前不想暴露8001端口，希望在8001外面套一层9527。

1、启动7001 2、启动cloud-provider-payment8001 3、启动9527网关 4、添加网关前：访问http://localhost:8001/payment/get/31可以拿到结果 5、添加网关后：访问http://localhost:9527/payment/get/31也可以拿到结果。

Gateway网关路由有两种配置方式

1、yml：上面的方式就是yml

2、代码中注入RouteLocator的Bean

需求：访问http://localhost:9527/guonei就跳转到http://news.baidu.com/guonei（即通过9527网关访问到外网的百度新闻网址）

@Configuration public class GateWayConfig { @Bean public RouteLocator customRouteLocator(RouteLocatorBuilder routeLocatorBuilder) { RouteLocatorBuilder.Builder routes = routeLocatorBuilder.routes(); // 相当于访问http://localhost:9527/guonei就是访问http://news.baidu.com/guonei routes.route("path_rote_sl", r -> r.path("/guonei"). uri("http://news.baidu.com/guonei")).build(); return routes.build(); } }