Five ways to forward Zuul gateway

The above picture is a simple example of a microservice framework. When an HTTP request is sent to the server, it actually passes through Nginx first, and then passes through the gateway. The gateway here acts as an interception and filtering function. Since it intercepts and filters , It must involve the forwarding of the request

Forwarding I roughly illustrate the following five forwarding methods:

Method 1: path+serviceId method

Add the following configuration to the spring_cloud configuration file application.yml file:

server:
    port: 8888 #服务端口
spring:
    application:
        name: app-zuul-gateway #指定服务名
eureka:
  client:
    service-url:
           defaultZone: http://127.0.0.1:8100/eureka/  #注册到eureka中的地址
    register-with-eureka: true  
    fetch-registry: true

instance:
      prefer-ip-address: true #将自己的ip地址注册到Eureka服务中
      ip-address: 127.0.0.1   #ip地址
zuul:
#  方式一：path+serviceId
    routes: #定义服务转发规则
        abcs:   #abcs这个名字任意取的
	        path: /order/**   #配置请求URL的请求规则
	        serviceid: app-order  #eureka中服务的id

Jump example : http://localhost:8888/order/order2/201810300001

http://localhost:8888/order is equivalent to specifying the microservice whose id is app-order in eureka. After connecting with its own parameters, it can be used normally

Method 2: Specify the service id method

zuul:
	routes: #定义服务转发规则
	        app-order: /order/**

Jump example : http://localhost:8888/order/order2/201810300001

Same as method one, http://localhost:8888/order is equivalent to specifying the microservice whose id is app-order in eureka. After connecting with its own parameters, it can be used normally.

Method 3: Configure path and url at the same time

zuul:
	routes: #定义服务转发规则
		abcs:
		   path: /order/**
		   url: http://127.0.0.1:8091 #真正的微服务地址，path匹配的请求都转发到这里

Jump example : http://localhost:8888/order/order2/201810300001

The above is the same as the method, http://localhost:8888/order is equivalent to specifying the microservice whose id is app-order in eureka. After connecting with its own parameters, it can be used normally.

Method 4: Routing prefix method

zuul:
	prefix: /order2
	strip-prefix: false
	routes:
	     app-order: /order/**

Jump example : http://localhost:8888/order2/app-order/201810300001

Visit Zuul's /order2/app-order/201810300001 path, the request will be forwarded to app-order's order2/201810300001

Method 5: Route prefix 2 method

zuul:
	routes:
	    app-order:
	       path: /order2/**
	       strip-prefix: false

Jump example : http://localhost:8888/order2/201810300001

Visit Zuul's /order2/201810300001 path, the request will be forwarded to order2/201810300001 of app-order

This is the end of today’s sharing. We welcome all students’ comments or suggestions to the editor.