zuul包含了对外请求的路由和过滤两个最要的功能
其中路由功能负责将外部的请求转发到具体的微服务实例上，是实现外部访问统一入口基础而过滤器功能则负责对请求的处理过程进行干预，是实现请求校验，服务聚合功能的基础Zuul和eureka进行整合，将Zuul自身注册为Eureka服务治理下的应用，同时从Eureka中获取到其他的微服务的消息，也即以后的访问微服务都是通过 Zuul跳后获得
Zuul还是会注册到Eureka里

1）创建一个 Z uul d的项目

依赖

<!-- zuul路由网关 -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-zuul</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka</artifactId>
		</dependency>

pom 文件

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <parent>
    <groupId>com.xxx</groupId>
    <artifactId>microservicecloud</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>microservicecloud-zuul-8087</artifactId>
<dependencies>
		<!-- zuul路由网关 -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-zuul</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-eureka</artifactId>
		</dependency>
		<!-- actuator监控 -->
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-actuator</artifactId>
		</dependency>
		<!-- hystrix容错 -->
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-hystrix</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-starter-config</artifactId>
		</dependency>
		<!-- 日常标配 -->
		<dependency>
			<groupId>com.xxx</groupId>
			<artifactId>microservicecloud-api</artifactId>
			<version>${project.version}</version>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-jetty</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-web</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
		</dependency>
		<!-- 热部署插件 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>springloaded</artifactId>
		</dependency>
		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-devtools</artifactId>
		</dependency>
	</dependencies>

</project>

.yml 文件

server: 
  port: 8087
 
spring: 
  application:
    name: microservicecloud-zuul
 
eureka: 
  client: 
    service-url: 
       defaultZone: http://euerka7001.com:7001/eureka/,http://euerka7002.com:7002/eureka/,http://euerka7003.com:7003/eureka/     
  instance:
    instance-id: zuul8078.com
    prefer-ip-address: true 
 
 
zuul: 
 
  prefix: /com # 统一前缀
  ignored-services: "*"  # 隐藏所有的真实的微服务名
  routes: 
    mydept.serviceId: microservicecloud-dept #真是的微服务名
    mydept.path: /user/**   #暴露自定义的名字
 
info: 
  app.name: com-xxx-xxx
  company.name: www.baidu.com
  build.artifactId: $project.artifactId$
  build.version: $project.version$

启动项目 访问
Eureka(7001,7002,7003) 提供者（8083）zuul路由网关(80787)

提供者自测

使用Zuul路由网关 访问页面

在使用真实的 微服务的名字 就访问不到了