1.Zuul簡介
Zuul包含了對請求的路由和過濾兩個最主要的功能。
路由功能負責將外部請求轉發到具體的微服務例項上，是實現外部訪問統一入口的基礎。
過濾器功能則負責對請求的處理過程進行干預，是實現請求校驗、服務聚合等功能的基礎。
Zuul和Eureka進行整合，將Zuul自身註冊為Eureka服務治理下的應用，同時從Eureka中獲得其他微服務的訊息，也即以後的訪問微服務都是通過Zuul跳轉後獲得。
注：Zuul服務最終還是會註冊進Eureka
Zuul提供代理、路由、過濾三大功能。
2.Zuul配置
(1).建立工程
新建Module模組microservicecloud-zuul-gateway-9527
(2).配置pom
[1].修改部分
|
<!-- zuul路由閘道器 --> <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> |
[2].完整部分
|
<?xml version="1.0" encoding="UTF-8"?> <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"> <parent> <artifactId>microservicecloud</artifactId> <groupId>com.hosystem</groupId> <version>1.0-SNAPSHOT</version> </parent> <modelVersion>4.0.0</modelVersion>
<artifactId>microservicecloud-zuul-gateway-9527</artifactId> <dependencies> <!-- zuul路由閘道器 --> <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監控 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <!-- hystrix容錯--> <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> <!-- 日常標配 --> <dependency> <groupId>com.atguigu.springcloud</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> <!-- 熱部署外掛 --> <dependency> <groupId>org.springframework</groupId> <artifactId>springloaded</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> </dependency> </dependencies>
</project> |
(3).applicaiton.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: hosystem-microcloud company.name: www.hosystem.com build.artifactId: $project.artifactId$ build.version: $project.version$ |
(4).修改hosts
|
127.0.0.1 myzuul.com |
(5).主啟動類
建立主啟動類Zuul_9527_StartSpringCloudApp，並新增註解@EnableZuulProxy.
|
package com.hosystem.springcloud;
import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.zuul.EnableZuulProxy;
@SpringBootApplication @EnableZuulProxy public class Zuul_9527_StartSpringCloudApp { public static void main(String[] args) { SpringApplication.run(Zuul_9527_StartSpringCloudApp.class, args); } } |
(6).啟動專案
[1].啟動eureka7001、eureka7002、eureka7003
啟動microservicecloud-eureka-7001、microservicecloud-eureka-7002、microservicecloud-eureka-7003
[2].啟動provider8001
啟動microservicecloud-provider-dept-8001
[3].啟動zuul9527
啟動microservicecloud-zuul-gateway-9527
(7).測試
[1].未啟用路由
[2].啟動路由
|
http://myzuul.com:9527/microservicecloud-dept/dept/get/2 |
3.Zuul路由訪問對映規則
(1).修改application.yml
修改部分：
|
zuul: routes: mydept.serviceId: microservicecloud-dept mydept.path: /mydept/** |
完整部分：
|
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
zuul: routes: mydept.serviceId: microservicecloud-dept mydept.path: /mydept/**
info: app.name: hosystem-microcloud company.name: www.hosystem.com build.artifactId: $project.artifactId$ build.version: $project.version$ |
訪問效果
|
#之前訪問的時候通過'microservicecloud-dept‘ http://myzuul.com:9527/microservicecloud-dept/dept/get/2
#之後訪問的時候通過'mydept' |
出現的問題，通過'microservicecloud-dept‘或者'mydept'都可以訪問。如何限制只允許'mydept'訪問，而'microservicecloud-dept'訪問失敗呢？具體解決方法如下，
|
#解決單個的時候指定具體的servideId #如果想要解決多個的時候可以使用 "*" zuul: ignored-services: microservicecloud-dept routes: mydept.serviceId: microservicecloud-dept mydept.path: /mydept/** |
統一公共字首
|
zuul: prefix: /hosystem ignored-services: "*" routes: mydept.serviceId: microservicecloud-dept mydept.path: /mydept/** |
完整的applicaiton.yml檔案
|
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
zuul: prefix: /hosystem ignored-services: "*" routes: mydept.serviceId: microservicecloud-dept mydept.path: /mydept/**
info: app.name: hosystem-microcloud company.name: www.hosystem.com build.artifactId: $project.artifactId$ build.version: $project.version$ |
參考文件：