(07)SpringCloud实战之zuul路由网关

  一、概述

  1、什么是zuul(官方资料

  Zuul包含了对请求的路由过滤两个最主要的功能

  (1)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。

  (2)过滤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。

  二、路由基本配置 

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

  pom.xml

<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.atguigu.springcloud</groupId>
    <artifactId>microservicecloud</artifactId>
    <version>0.0.1-SNAPSHOT</version>
  </parent>
  <artifactId>microservicecloud-zuul-gateway-9527</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.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>
   <!-- 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>

  application.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: $project.version$

  hosts 修改:添加 127.0.0.1  myzuul.com

  新建启动类 Zuul_9527_StartSpringCloudApp.java

package com.atguigu.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);
    }
}

  2、启动 eureka、microservicecloud-provider-dept-8001、microservicecloud-zuul-gateway-9527 测试

  输入 http://localhost:7001/ 路由网关微服务已经注册到 eureka

   输入 http://localhost:8001/dept/get/2 不用路由,测试成功

  输入http://myzuul.com:9527/microservicecloud-dept/dept/get/2 使用路由,测试成功

  三、路由访问映射规则

  1、代理微服务名称

  修改microservicecloud-zuul-gateway-9527的application.yml,添加

zuul: 
  routes: 
    mydept.serviceId: microservicecloud-dept
    mydept.path: /mydept/**

  启动 eureka、microservicecloud-provider-dept-8001、microservicecloud-zuul-gateway-9527 测试

  输入:http://myzuul.com:9527/microservicecloud-dept/dept/get/2 测试成功

  输入:http://myzuul.com:9527/mydept/dept/get/1 测试成功

  2、忽略真实的微服务名称

  application.yml 做如下修改,使只能访问代理后的路径

zuul: 
  ignored-services: microservicecloud-dept 
  routes: 
    mydept.serviceId: microservicecloud-dept
    mydept.path: /mydept/**

  输入:http://myzuul.com:9527/microservicecloud-dept/dept/get/2 测试失败

  输入:http://myzuul.com:9527/mydept/dept/get/1 测试成功

  3、忽略所有的真实的微服务名称

  忽略单个的微服务名称可以用具体名称,如上,忽略所有微服务名称可以使用 “*”,修改 application.yml 如下:

zuul: 
  ignored-services: "*"
  routes: 
    mydept.serviceId: microservicecloud-dept
    mydept.path: /mydept/**

  4、设置统一公共前缀

  如果想在访问微服务之前添加统一的前缀,可以修改 application.yml 如下:

zuul: 
  prefix: /atguigu
  ignored-services: "*"
  routes: 
    mydept.serviceId: microservicecloud-dept
    mydept.path: /mydept/**

  输入:http://myzuul.com:9527/atguigu/mydept/dept/get/1 测试成功

 

 

 

  

 

posted @ 2020-03-19 15:58  雷雨客  阅读(239)  评论(0编辑  收藏  举报