spring cloud gateway网关路由分配代码实例解析

<dependencies>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-gateway</artifactId>
    </dependency>

    <dependency>
      <groupId>com.alibaba.cloud</groupId>
      <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
    </dependency>
  </dependencies>

server:
 port: 9091

spring:
 application:
  name: gateway3
 cloud:
  nacos:
   discovery:
    server-addr: localhost:8848
    namespace: c22e5019-0bee-43b1-b80b-fc0b9d847501
    register-enabled: false

  gateway:
   routes:
    - id: demo_route
     uri: lb://demo
     predicates:
      - Path=/demo/**

    - id: demo2_test
     uri: lb://demo2
     predicates:
      - Path=/user/**

@SpringBootApplication
@EnableDiscoveryClient
public class Gateway3Application {

  public static void main(String[] args) {
    
    SpringApplication.run(Gateway3Application.class, args);
  }

}