Spring Cloud Gateway路由断言实战——Host路由断言工厂

客官°小女子只卖身不卖艺 2021-07-24 16:07 611阅读 0赞

**一 源码位置**

[https://github.com/cakin24/spring-cloud-code/tree/master/ch17-2/ch17-2-6-gateway][https_github.com_cakin24_spring-cloud-code_tree_master_ch17-2_ch17-2-6-gateway]

**二 关键代码**

package cn.springcloud.book.gateway;
    
    import org.springframework.boot.SpringApplication;
    import org.springframework.boot.autoconfigure.SpringBootApplication;
    import org.springframework.cloud.gateway.route.RouteLocator;
    import org.springframework.cloud.gateway.route.builder.RouteLocatorBuilder;
    import org.springframework.context.annotation.Bean;
    
    @SpringBootApplication
    public class ScGatewayApplication {
    
       @Bean
       public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
               // 下面这几行是关键代码
          return builder.routes()
                .route("host_route", r -> r.host("peer1:8080")
                      .uri("http://jd.com"))
                .build();
       }
    
    
       public static void main(String[] args) {
          SpringApplication.run(ScGatewayApplication.class, args);
       }
    }

**三 配置Hosts文件**

增加如下数据：

127.0.0.1 peer1

**四 测试**

1 启动ch17-2/ch17-2-6-gateway

2 浏览器输入：[http://peer1:8080][http_peer1_8080]

3 跳转到京东主页，测试成功

[https_github.com_cakin24_spring-cloud-code_tree_master_ch17-2_ch17-2-6-gateway]: https://github.com/cakin24/spring-cloud-code/tree/master/ch17-2/ch17-2-1-gateway
[http_peer1_8080]: http://peer1:8080/