Gateway配置

1. new module
2. pom

<dependencies>
        <dependency><!-- 引用自己定义的api通用包，可以使用Payment支付Entity -->
            <groupId>org.example</groupId>
            <artifactId>cloud-api-commons</artifactId>
            <version>${project.version}</version>
        </dependency>
        <!--gateway-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>
        <!--eureka client-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>
        <!--热部署-->
        <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_route # 路由的id,没有规定规则但要求唯一,建议配合服务名
          #匹配后提供服务的路由地址
          uri: http://localhost:8001
          predicates:
            - Path=/payment/get/** # 断言，路径相匹配的进行路由

        - id: payment_route2
          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:
    fetch-registry: true
    register-with-eureka: true
    service-url:
      defaultZone: http://eureka7001.com:7001/eureka/

4. 主启动类

@SpringBootApplication
@EnableEurekaClient
public class GatewayMain9527 {

    public static void main(String[] args) {
        SpringApplication.run(GatewayMain9527.class,args);
    }
}

测试：
直接调用8001的接口：

通过路由转发：

代表配置成功了

通过配置文件配置

配置文件：

@Configuration
public class GatewayConfig {

    /**
     * 配置了一个id为route-name的路由规则
     * 当访问地址 http://localhost:9527/guonei时会自动转发到地址： http://news.baidu.com/guonei
     * @param builder
     * @return
     */
    @Bean
    public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
        RouteLocatorBuilder.Builder routes = builder.routes();
        routes.route("path_route_eiletxie",
                r -> r.path("/guonei")
                        .uri("http://news.baidu.com/guonei")).build();
        return routes.build();
    }
}

测试打开：http://localhost:9527/guonei