SpringCloud07：zuul路由網(wǎng)關(guān)

本系列對應(yīng)的是尚硅谷周陽Spring Cloud的思維導(dǎo)圖整理的筆記，用來方便自己后面的知識點回顧。分別以每個知識點作為一篇文章詳細(xì)講述。

知識點傳送門：
項目源碼

一、概述

1.是什么

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(fù)責(zé)將外部請求轉(zhuǎn)發(fā)到具體的微服務(wù)實例上，是實現(xiàn)外部訪問統(tǒng)一入口的基礎(chǔ)而過濾器功能則負(fù)責(zé)對請求的處理過程進(jìn)行干預(yù)，是實現(xiàn)請求校驗、服務(wù)聚合等功能的基礎(chǔ).

Zuul和Eureka進(jìn)行整合，將Zuul自身注冊為Eureka服務(wù)治理下的應(yīng)用，同時從Eureka中獲得其他微服務(wù)的消息，也即以后的訪問微服務(wù)都是通過Zuul跳轉(zhuǎn)后獲得。

注意：Zuul服務(wù)最終還是會注冊進(jìn)Eureka

提供=代理+路由+過濾三大功能

官網(wǎng)資料

二、路由基本配置

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

2.修改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>com.atguigu.springcloud</groupId>
   <artifactId>microservicecloud</artifactId>
   <version>0.0.1-SNAPSHOT</version>
  </parent>


  <artifactId>microservicecloud-zuul-gateway-9527</artifactId>


  <dependencies>
   <!-- zuul路由網(wǎng)關(guān) -->
   <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(jiān)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(biāo)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>

3.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: atguigu-microcloud
  company.name: www.atguigu.com
  build.artifactId: $project.artifactId$
  build.version: $project.version$

4.hosts修改

127.0.0.1 myzuul.com

5.主啟動類

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);
  }
}

6.啟動

  1. 三個eureka集群
  2. 一個服務(wù)提供類microservicecloud-provider-dept-8001
  3. 一個路由

7. 測試

不用路由: http://localhost:8001/dept/get/2
啟用路由: http://myzuul.com:9527/microservicecloud-dept/dept/get/2

三、路由訪問映射規(guī)則

1.工程microservicecloud-zuul-gateway-9527

2.代理名稱

問題：
路由訪問OK：http://myzuul.com:9527/mydept/dept/get/1
原路徑訪問OK：http://myzuul.com:9527/microservicecloud-dept/dept/get/2

3.原真實服務(wù)名忽略

修改YML文件

單個服務(wù)

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

多個服務(wù)

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

4.設(shè)置統(tǒng)一公共前綴

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

訪問地址 http://myzuul.com:9527/atguigu/mydept/dept/get/1

5.最后YML

server: 
  port: 9527
 
spring: 
  application:
    name: microservicecloud-zuul-gateway
 
zuul: 
  prefix: /atguigu
  ignored-services: "*"
  routes: 
    mydept.serviceId: microservicecloud-dept
    mydept.path: /mydept/**


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: $project.version$
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