六（1）springcloud之zuul路由網關

1、Zuul介紹

Zuul包含了對請求的路由和過濾兩個最主要的功能：其中路由功能負責將外部請求轉發到具體的微服務實例上，是實現外部訪問統一入口的基礎而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自身註冊爲Eureka服務治理下的應用，同時從Eureka中獲得其他微服務的消息，也即以後的訪問微服務都是通過Zuul跳轉後獲得。Zuul服務最終還是會註冊進Eureka。 提供=代理+路由+過濾三大功能

2、基本路由配置

1、新建Module模塊microservicecloud-zuul-gateway-9527

2、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>cn.jiatp.springcloud</groupId>
    <artifactId>microservicecloud</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>microservicecloud-zuul-gateway-9527</artifactId>
 
  <dependencies>
    <!--通用  -->
    <dependency><!-- 引入自己定義的api通用包，可以使用Dept部門Entity -->
     <groupId>cn.jiatp.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>
    <!-- 修改後立即生效，熱部署 -->
   <dependency>
     <groupId>org.springframework</groupId>
     <artifactId>springloaded</artifactId>
     <version>1.2.6.RELEASE</version>
   </dependency>
   <dependency>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-devtools</artifactId>
   </dependency>
   <!--zuul路由網關  -->
	<dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
    </dependency>
<!--註冊到eureka,這是一個客戶端-->
	<dependency>
        <groupId>org.springframework.cloud</groupId>
	    <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
	</dependency>

<!--springboot2.x之Actuator應用監控 -->
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-actuator</artifactId>
    </dependency>
<!-- hystrix-->
    <dependency>
       <groupId>org.springframework.cloud</groupId>
       <artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
    </dependency> 
</dependencies>
</project>

3、yml配置

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: jiatp-microservicecloud
  company.name: www.jiatp.club
  build.artifactId: $project.artifactId$
  build.version: $project.version$   
  

  
  

4、修改host文件

127.0.0.1  myzuul.com

5、主啓動類

package cn.jiatp.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) {
		// TODO Auto-generated method stub
		 SpringApplication.run(Zuul_9527_StartSpringCloudApp.class, args);

	}

}

6、啓動測試：

分別啓動三個eureka集羣、一個服務提供類microservicecloud-provider-dept-8001、microservicecloud-zuul-gateway-9527

瀏覽器中測試：http://myzuul.com:9527/microservicecloud-dept/dept/get/2

3、路由訪問映射規則

 

修改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: jiatp-microservicecloud
  company.name: www.jiatp.club
  build.artifactId: $project.artifactId$
  build.version: $project.version$   
  
# 路由訪問映射規則
zuul: 
  prefix: /jiatp  #設置統一公共前綴
  ignored-services: microservicecloud-dept # 多個可用 * 代替
  routes: 
    mydept.serviceId: microservicecloud-dept
    mydept.path: /mydept/**  
  
  
  

路由訪問映射從：http://myzuul.com:9527/microservicecloud-dept/dept/get/2---->http://myzuul.com:9527/mydept/dept/get/2(原真實服務名忽略)---->http://myzuul.com:9527/jiatp/mydept/dept/get/2(設置統一公共前綴)