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

朴灿烈づ我的快乐病毒、 2021-07-24 15:57 440阅读 0赞

**一 源码位置**

[https://github.com/cakin24/spring-cloud-code/tree/master/ch17-2/ch17-2-1-gateway][https_github.com_cakin24_spring-cloud-code_tree_master_ch17-2_ch17-2-1-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;
    
    
    import java.time.LocalDateTime;
    import java.time.ZoneId;
    import java.time.ZonedDateTime;
    
    
    @SpringBootApplication
    public class SCGatewayApplication {
    
    
       @Bean
       public RouteLocator customRouteLocator(RouteLocatorBuilder builder) {
          //生成比当前时间早一个小时的UTC时间
          ZonedDateTime minusTime = LocalDateTime.now().minusHours(1).atZone(ZoneId.systemDefault());
          return builder.routes()
                .route("after_route", r -> r.after(minusTime)
                      .uri("http://baidu.com"))
                .build();
       }
       public static void main(String[] args) {
          SpringApplication.run(SCGatewayApplication.class, args);
       }
    }

**三 测试**

1 启动ch17-2-1-gateway

2 浏览器输入  [http://localhost:8081][http_localhost_8081]

3 页面跳转到百度主页，测试成功！

[https_github.com_cakin24_spring-cloud-code_tree_master_ch17-2_ch17-2-1-gateway]: https://github.com/cakin24/spring-cloud-code/tree/master/ch17-2/ch17-2-1-gateway
[http_localhost_8081]: http://localhost:8081/