Spring Cloud Gateway入门实战——Java流式API定义RouteLocator

骑猪看日落 2021-07-24 16:11 181阅读 0赞

**一 开源项目地址**

[https://github.com/cakin24/spring-cloud-code/tree/master/ch17-1/ch17-1-1-gateway][https_github.com_cakin24_spring-cloud-code_tree_master_ch17-1_ch17-1-1-gateway]

**二 核心代码**

@SpringBootApplication
    public class SpringCloudGatewayApplication {
    
    
       /**
        * 基本的转发
        * 当访问http://localhost:8080/jd
        * 转发到http://jd.com
        * @param builder
        * @return
        */
       @Bean
       public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
          // 关键是这里，Java流式API定义RouteLocator
          return builder.routes()
                //basic proxy
                .route(r ->r.path("/jd")
                      .uri("http://jd.com:80/").id("jd_route")
                ).build();
       }
    
    
       public static void main(String[] args) {
          SpringApplication.run(SpringCloudGatewayApplication.class, args);
       }
    }

**三 测试**

1 启动ch17-1-1-gateway

2 浏览器输入： [http://localhost:8080/jd][http_localhost_8080_jd]

3 路由到京东主页。

4 浏览器输入： [http://localhost:8080/actuator/gateway/routes][http_localhost_8080_actuator_gateway_routes]

5 页面输出

[
        {
            "route_id": "jd_route",
            "route_object": {
                "predicate": "org.springframework.cloud.gateway.support.ServerWebExchangeUtils$$Lambda$284/131709548@30b8da15"
            },
            "order": 0
        }
    ]

和流式API定义是匹配的。

[https_github.com_cakin24_spring-cloud-code_tree_master_ch17-1_ch17-1-1-gateway]: https://github.com/cakin24/spring-cloud-code/tree/master/ch17-1/ch17-1-1-gateway
[http_localhost_8080_jd]: http://localhost:8080/jd
[http_localhost_8080_actuator_gateway_routes]: http://localhost:8080/actuator/gateway/routes