01-SpringCloud gateway入门案例

一、建立springboot项目添加依赖

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

二、配置application.yml

server:
  port: 5000
spring:
  application:
    name: hello-gateway
  cloud:
    gateway:
      routes:
      - id: gateway1
        uri: https://www.jianshu.com/p/44a0d6adcdea
        predicates:
        - Path=/p/44a0d6adcdea

三、配置启动类

@SpringBootApplication
public class HelloGatewayApplication {

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

    @Bean
    public RouteLocator routeLocator(RouteLocatorBuilder builder){
        return builder.routes()
                .route(r->r.path("/java-concurrent").uri("http://ifeve.com"))
                .build();
    }
}

项目

访问http://localhost:5000/p/44a0d6adcdea、http://ifeve.com/java-concurrent/

总结访问http://localhost:5000/p/44a0d6adcdea则会转发到https://www.jianshu.com/p/44a0d6adcdea

访问http://ifeve.com/java-concurrent/,则会转发到http://ifeve.com/java-concurrent/

一、能够看出，地址栏中的url是不会变的，说明gateway是转发而不是重定向

二、同时能够发现gateway不会组件不像springcloud其余组建要使用@EnableXXX,如eureka要使用@EnableEurekaServer 、    Feign要使用@EnableFeignClients等等

三、这个项目能够看出gateway支持两种方式yml、和配置类