Gateway 是一个异步的的路由框架

他的性能高于zuul(zuul是一个线程阻塞的路由框架),
这里贴出gateway的详细介绍GateWay介绍

先创建工程,创建好之后引入依赖

<dependencies>
        <!--gateway-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-gateway</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
        </dependency>
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

== 引入依赖的时候有一个坑,sprint-boot-starter-web这个依赖是不能够引入的,引入的话getway就启动不了==

启动类

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

在gateway当中配置路由有两种方式,第一种是通过yml配置文件的方式配置路由,第二种是通过配置类的方式来配置路由

第一种-> yml

server:
  port: 8001
spring:
  application:
    name: get-way
  cloud:
    gateway:
      discovery:
        locator:
          enabled: true
          lower-case-service-id: true
      routes:
        - id: nacos-getway-provider
          uri: lb://cuiter-user     // lb://是指当前注册中心下  后面的是微服务的名字
          predicates:
            - Path=/**
    nacos:
      discovery:
        server-addr: localhost:8848

第二种,配置类

@Configuration
public class GetWayConfig {
    @Bean
    public RouteLocator customRouteLocator(RouteLocatorBuilder routeLocatorBuilder) {
        RouteLocatorBuilder.Builder routes = routeLocatorBuilder.routes();
        routes.route("provider-user", r -> r.path("/findAll").uri("http://www.baidu.com")).build();
        return routes.build();

    }
}

顺便说一下 ,我用的注册中心是阿里的nacos