Nacos registry

Nacos Registry Center

springcloud Of alibab Version of the registry

nacso Official website

nacos.io

port 8848, Copy console Web access for nacos page
The default account password is nacos

Quick start

Go to the parent project and add dependencies

<!--nacos Management dependency of -->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>2.2.5.RELEASE</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

stay user-service Add... To the module nacos rely on , Comment out eureka rely on （ Just add client dependencies ）

<!--nacos Client dependent packages  -->
        <dependency>
            <groupId>com.alibaba.cloud</groupId>
            <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
        </dependency>

Modify the configuration environment

order-service Do the same thing
Back to nacos page , Refresh , Click Service Management

Service hierarchical storage model

I copied a few user-service modular , Easy to understand cluster

modify user-service Environment configuration of the module

And then run 8083 and 8081 Port of user-service modular （ Stop all running modules first ）
In the revision user-service Environment configuration of the module

function 8082 Port of user-service modular （ If the number of clusters shows three , Just restart nacos）

Click on the details

NacosRule Load balancing

hold order-service The module is configured as described above （ Cluster changed to HZ）

Call at this time order-service modular , After several more calls, you will find that all clusters have calls

modify order-service Environment configuration of the module

userserive: # The name of the micro service to be configured 
    ribbon:
      NFLoadBalancerRuleClassName: com.alibaba.cloud.nacos.ribbon.NacosRule  # Load balancing principle 

Now you can go to the local cluster

Weight configuration of service instances

Higher weight , The more frequent the service requests

Environmental isolation

Nacos and Eureka contrast

stay order-service Modify the configuration environment

restart order-service modular

Nacos Configuration Management

I forgot to take a screenshot before creating the configuration , That is, there is no configuration

Pull the micro service configuration

It was like this before

Now?

Go to user-service Add client management dependencies

stay resources Create a new configuration file under the package bootstarp.yml

spring:
  application:
    name: userservice
  profiles:
    active: dev #  Environmental Science 
  cloud:
    nacos:
      server-addr: nacos:8848 # nacos Address 
      config:
        file-extension: yaml #  File suffix 

Configure the refresh

Change the configuration environment format , Directly refresh the open page

Multi environment configuration sharing