Zuul是什么?
Zuul包含了对请求的路由和过滤两个最主要的功能:
- 路由功能负责将外部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的基础,
- 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、服务聚合等功能的基础.
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中获得其他微服务的消息,也即以后的访问微服务都是通过Zuul跳转后获得。
注意:Zuul服务最终还是会注册进Eureka 提供=代理+路由+过滤三大功能
创建Zuul微服务
首先添加GAV坐标
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
<dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-zuul</artifactId>
<dependency>
yml
server:
port: 9527
spring:
application:
name: microservicecloud-zuul-gateway
eureka:
client:
service-url:
defaultZone: http://eureka7001.com:7001/eureka,http://eureka7002.com:7002/eureka,http://eureka7003.com:7003/eureka
instance:
instance-id: gateway-9527.com
prefer-ip-address: true
info:
app.name: atguigu-microcloud
company.name: www.atguigu.com
build.artifactId: $project.artifactId$
build.version: $project.version$
启动类添加@EnableZuulProxy注解
测试
不用路由:http://localhost:8001/dept/get/2
启用路由:http://myzuul.com:9527/microservicecloud-dept/dept/get/2
如何给微服务添加代理名称
zuul:
routes:
mydept.serviceId: microservicecloud-dept
mydept.path: /mydept/**
http://myzuul.com:9527/microservicecloud-dept/dept/get/2
http://myzuul.com:9527/mydept/dept/get/1
如何对原真实服务名忽略
zuul:
ignored-services: microservicecloud-dept
# ignored-services: "*" 忽视所有
routes:
mydept.serviceId: microservicecloud-dept
mydept.path: /mydept/**
http://myzuul.com:9527/microservicecloud-dept/dept/get/2 不可用
http://myzuul.com:9527/mydept/dept/get/1 可用
如何给微服务设置统一前缀
zuul:
prefix: /ccic
http://myzuul.com:9527/ccic/mydept/dept/get/1