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官方资料：https://github.com/Netflix/zuul/
什么是Zuul?
Zuul包含了两个主要的功能：路由和过滤
路由功能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，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中获得其他服务的消息，使得以后的访问微服务都是通过Zuul跳转后获得。
详细步骤
1.新建springcloud-zuul模块，并导入依赖
<dependencies><!--导入zuul依赖--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-zuul</artifactId><version>1.4.6.RELEASE</version></dependency><!--Hystrix依赖--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-hystrix</artifactId><version>1.4.6.RELEASE</version></dependency><!--dashboard依赖--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-hystrix-dashboar</artifactId><version>1.4.6.RELEASE</version></dependency><!--Ribbon--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-ribbon</artifactId><version>1.4.6.RELEASE</version></dependency><!--Eureka--><dependency><groupId>org.springframework.cloud</groupId><artifactId>spring-cloud-starter-eureka</artifactId><version>1.4.6.RELEASE</version></dependency><!--实体类+web--><dependency><groupId>com.haust</groupId><artifactId>springcloud-api</artifactId><version>1.0-SNAPSHOT</version></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><!--热部署--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-devtools</artifactId></dependency>
</dependencies>2.配置application.yml
server:port: 9527
spring:application:name: springcloud-zuul
eureka:client:service-url:defaultZone: http://eureka7001.com:7001/eureka/,http://eureka7002.com:7002/eureka/,http://eureka7003.com:7003/eureka/instance:instance-id: zuul9527.comprefer-ip-address: true#info
info:app.name: com.divinercompany.name: oj.diivner.comzuul:routes:mydept.serviceid: springcloud-provider-deptmydept.path: /mydept/**ignored-services: springcloud-provider-dept #不能在使用原路径访问 "*" 隐藏全部服务prefix: /diviner # 设置公共前缀
3.编写主启动类
@SpringBootApplication(exclude = DataSourceAutoConfiguration.class)
@EnableZuulProxy //
public class ZuulApplication_9527 {public static void main(String[] args) {SpringApplication.run(ZuulApplication_9527.class,args);}}4.启动7001、hystrix_8001、zuul_9527、80进行测试
可以看到Zull路由网关被注册到Eureka注册中心
通过路由网关进行访问：http://www.diviner.com:9527/springcloud-provider-dept/dept/get/1
配置ignored—services：隐藏掉该服务
通过配置的路径进行访问：http://www.diviner.com:9527/mydept/dept/get/1
配置prefix: /deviner
通过配置的路径进行访问:http://www.diviner.com:9527/diviner/mydept/dept/get/1
