什么是网关

Zuul的主要功能是路由转发和过滤器。路由功能是微服务的一部分，比如／api/user转发到到user服务，
/api/shop转发到到shop服务。zuul默认和Ribbon结合实现了负载均衡的功能， 类似于nginx转发。

依赖

  <parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>2.1.4.RELEASE</version>
  </parent>

    <!--eureka依赖-->
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
    </dependency>
    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
    </dependency>
  </dependencies>

  <dependencyManagement>
    <dependencies>
      <!--springCloud依赖-->
      <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-dependencies</artifactId>
        <version>Greenwich.RELEASE</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>

配置文件application.yml

eureka:
  client:
    service-url:
      defaultZone: http://localhost:8001/eureka
server:
  port: 9001
spring:
  application:
    name: zuul
##配置zuul网关
zuul:
  routes:
    api-a:
      path: /member-zuul/**
      service-id: memeber-service
    api-b:
      path: /order-zuul/**
      service-id: order-service

启动类StartZuul

package com.cloud;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;

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

效果展示

原文地址：https://www.cnblogs.com/dabrk/p/12071986.html