SpringCloud Greenwich（五）之nacos、dubbo、Zuul和 gateway集成

本项目是搭建基于nacos注册中心的springcloud，集成dubbo框架，使用zuul网关和gateway网关

一、框架搭建

（1）项目结构

micro-service  服务提供者
zuul-gateway  zuul网关
springcloud-gateway  gateway网关
class-provider duboo提供者
user-provider  duboo提供者
duboo-consumer  duboo消费者
dubbo-interface  duboo接口api

（2）环境

nacos 1.4.1

springboot 2.1.9

springcloud Greenwich

dubbo 2.7.6

注：nacos搭建

二、项目配置application.yaml

127.0.0.1为本地nacos地址

（1）micro-service

spring:application:name: micro-serviceprofiles:active: devjackson:time-zone: GMT+8date-format: yyyy-MM-dd HH:mm:ssdefault-property-inclusion: ALWAYScloud:nacos:discovery:server-addr: 127.0.0.1:8848server:port: 8081

（2）zuul-gateway

spring:application:name: zuul-gatewayprofiles:active: devjackson:time-zone: GMT+8date-format: yyyy-MM-dd HH:mm:ssdefault-property-inclusion: ALWAYScloud:nacos:discovery:server-addr: 127.0.0.1:8848server:port: 8082zuul:strip-prefix: true #转发路径截断匹配前缀
#  prefix: "/api"add-proxy-headers: falseset-content-length: truesemaphore:max-semaphores: 600hystrix:command:default:execution:isolation:thread:timeoutInMilliseconds: 120000
ribbon:ReadTimeout: 240000ConnectTimeout: 2000MaxAutoRetries: 0MaxAutoRetriesNextServer: 1eager-load:enabled: trueclients: micro-service

（3） springcloud-gateway

spring:application:name: springcloud-gatewayprofiles:active: devjackson:time-zone: GMT+8date-format: yyyy-MM-dd HH:mm:ssdefault-property-inclusion: ALWAYScloud:nacos:discovery:server-addr: 127.0.0.1:8848gateway:discovery:locator:enabled: truelower-case-service-id: truehttpclient:connect-timeout: 60000response-timeout: 5sroutes:- id: micro-service1uri: lb://micro-servicepredicates:- Path=/micro-service1/**filters:- StripPrefix=1
server:port: 8083hystrix:command:default:execution:isolation:thread:timeoutInMilliseconds: 120000
ribbon:ReadTimeout: 240000ConnectTimeout: 2000MaxAutoRetries: 0MaxAutoRetriesNextServer: 1eager-load:enabled: trueclients: micro-service

（4）user-provider

dubbo:registry:address: spring-cloud://${spring.cloud.nacos.discovery.server-addr}protocol:name: dubboport: -1scan:base-packages: com.mk.springcloud.dubbocloud:subscribed-services: ''spring:application:name: user-providerprofiles:active: devjackson:time-zone: GMT+8date-format: yyyy-MM-dd HH:mm:ssdefault-property-inclusion: ALWAYSmain:allow-bean-definition-overriding: truecloud:nacos:discovery:server-addr: 172.0.0.1:8848server:port: 8084feign:hystrix:enabled: truelogBack:logPathDir: ${logPathDir:./log/${spring.application.name}}

（5）class-provider

dubbo:registry:address: spring-cloud://${spring.cloud.nacos.discovery.server-addr}protocol:name: dubboport: -1scan:base-packages: com.mk.springcloud.dubbocloud:subscribed-services: user-provider
#  consumer:
#    check: falsespring:application:name: class-providerprofiles:active: devjackson:time-zone: GMT+8date-format: yyyy-MM-dd HH:mm:ssdefault-property-inclusion: ALWAYSmain:allow-bean-definition-overriding: truecloud:nacos:discovery:server-addr: 172.0.0.1:8848server:port: 8085feign:hystrix:enabled: truelogBack:logPathDir: ${logPathDir:./log/${spring.application.name}}

（6）dubbo-consumer

dubbo:registry:address: spring-cloud://${spring.cloud.nacos.discovery.server-addr}protocol:name: dubboport: -1scan:base-packages: com.mk.springcloud.dubbocloud:subscribed-services: user-provider,class-provider
#  consumer:
#    check: falsespring:application:name: dubbo-consumerprofiles:active: devjackson:time-zone: GMT+8date-format: yyyy-MM-dd HH:mm:ssdefault-property-inclusion: ALWAYSmain:allow-bean-definition-overriding: truecloud:nacos:discovery:server-addr: 172.0.0.1:8848server:port: 8086logBack:logPathDir: ${logPathDir:./log/${spring.application.name}}

dubbo.register配置可以写成其他方式，程序只取spring-cloud://这个协议头，如：

dubbo:registry:address: spring-cloud://localhost

dubbo.scan.base-packages必须填写，否则dubbo不会注册dubbo接口服务

dubbo:scan:base-packages: com.mk.springcloud.dubbo

三、dubbo存在的问题

consumer先启动，provider后启动无法发现问题在版本spring-cloud-starter-dubbo 2.2.4.RELEASE已经解决了。

provider重启后，consumer无法自动发现provider，官方还没有给出明确的解决时间。

所以每次重启provider，都要把consumer重启一遍才能访问

四、项目地址

https://github.com/90duc/springcloud-nacos-dubbo