博客

• 导包

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

• 主启动类：

  @SpringBootApplication
  @EnableEurekaClient
  public class Gateway9527 {
      public static void main(String[] args) {
          SpringApplication.run(Gateway9527.class,args);
      }
  }
  

• 两种方法：配置文件配置，或者配置类配置
  • 方法1：配置文件

    server:
      port: 9527
    spring:
      application:
        name: cloud-gateway
    
      cloud:
        gateway:
          discovery:
    	    locator:
    	      enabled: true  #开启从注册中心动态获取路由功能
          routes:
            - id: payment_routh #路由的ID，没有固定规则但要求唯一，建议配合服务名
              uri: http://localhost:8001   #匹配后提供服务的路由地址
              predicates:
                - Path=/payment/circuit/**   #断言,路径相匹配的进行路由
                - After=2021-06-07T16:41:36.583681900+08:00[Asia/Shanghai]  #该时间后生效
    
            - id: payment_routh2
              uri: http://localhost:8001
              predicates:
                - Path=/ok/**   #断言,路径相匹配的进行路由
    
    
    eureka:
      client:
        service-url:
          defaultZone: http://eureka7001.com:7001/eureka
      instance:
        appname: cloud-gateway-service
    
    

  • 方法2：配置类

    @Configuration
    public class GatewayConfig {
        @Bean
        public RouteLocator getRouteLocator(RouteLocatorBuilder routeLocatorBuilder){
            RouteLocatorBuilder.Builder routes = routeLocatorBuilder.routes();
            // 9527/ok/**请求  为8001的/ok/**请求
            routes.route("payment_route",r -> r.path("/ok/**").uri("http://localhost:8001/"));
    
            return routes.build();
        }
    }
    

常用的predicate

Loaded RoutePredicateFactory [After] 时间之后

Loaded RoutePredicateFactory [Before] 时间之前

Loaded RoutePredicateFactory [Between] 时间之间

Loaded RoutePredicateFactory [Cookie]

Loaded RoutePredicateFactory [Header]

Loaded RoutePredicateFactory [Host]

Loaded RoutePredicateFactory [Method] 请求方式（get post…）

Loaded RoutePredicateFactory [Path]

Loaded RoutePredicateFactory [Query]

Loaded RoutePredicateFactory [ReadBody]

Loaded RoutePredicateFactory [RemoteAddr]

Loaded RoutePredicateFactory [Weight]

Loaded RoutePredicateFactory [CloudFoundryRouteService]