Shulou(Shulou.com)06/01 Report--

In this issue, the editor will bring you about the use of Nacos and the creation of gateway centers. The article is rich in content and analyzed and described from a professional point of view. I hope you can get something after reading this article.

1. Brief introduction to Nacos1.1

Nacos can be used to discover, configure, and manage microservices. It provides a set of easy-to-use feature sets that can quickly implement dynamic service discovery, service configuration, service metadata and traffic management.

Nacos is used to build, deliver, and manage micro-service platforms more quickly and easily. Nacos is the service foundation setting for building modern application architecture with "service" as the center, such as micro-service paradigm and cloud native paradigm.

This is what we usually call the configuration center and the service discovery center.

1.2 build and start

The current version of Nacos does not support the creation of services in the form of Spring boot. It must be run separately as a Java package or as a Docker service. Let's talk about running locally.

Download the installation package:

Curl https://github.com/alibaba/nacos/releases/download/1.2.1/nacos-server-1.2.1.zip

Unzip nacos-server-$version.zip or tar-xvf nacos-server-$version.tar.gz

Cd nacos/bin

Install using source code:

Git clone https://github.com/alibaba/nacos.git

Cd nacos/

Mvn-Prelease-nacos-Dmaven.test.skip=true clean install-U

Ls-al distribution/target/

/ / change the $version to your actual path

Cd distribution/target/nacos-server-$version/nacos/bin

Start:

Linux/Unix/Mac

Start command (standalone stands for stand-alone mode, non-cluster mode):

Sh startup.sh-m standalone

If you are using a ubuntu system, or if you run the script with an error [[symbol not found, try the following:

Bash startup.sh-m standalone

Windows

Start the command:

Cmd startup.cmd

Or double-click startup.cmd to run the file.

2. Spring Cloud Gateway

For the entire gateway service, we use Spring Cloud Gateway. In Spring Cloud microservices, the whole system only exposes the gateway, while other services are not visible to the public. So we need to set up a gateway service that we can use.

Create a gateway directory under nature/manager and add pom.xml:

Club.attachie

Manager

${revision}

4.0.0

Club.attachie

Gateway

Jar

${revision}

Register the module under manager:

Gateway

2.1 add Gateway

After you create the completed project, you need to add a dependency package:

Org.springframework.cloud

Spring-cloud-starter-gateway

In the gateway project, create the following directory:

├── pom.xml

└── src

└── main

├── java

│ └── club

│ └── attachie

│ └── gateway

│ └── SpringGatewayApplication.java

└── resources

└── bootstrap.yml

Create the SpringGateAppliction.java file as follows:

Package club.attachie.gateway

Import org.springframework.boot.SpringApplication

Import org.springframework.boot.autoconfigure.SpringBootApplication

Import org.springframework.cloud.client.discovery.EnableDiscoveryClient

Import org.springframework.cloud.context.config.annotation.RefreshScope

/ * *

* @ author attaching

, /

@ SpringBootApplication

@ EnableDiscoveryClient

@ RefreshScope

Public class SpringGatewayApplication {

Public static void main (String [] args) {

SpringApplication.run (SpringGatewayApplication.class, args)

}

}

Create a bootstrap.yml under the resource directory:

Spring:

Application:

Name: gateway

Yml is a configuration file format for Spring, where the names application and bootstrap,bootstrap are loaded before application.

2.2 add nacos

First add the nacos version number to nature/pom.xml:

2.2.1.RELEASE

Then add nacos related dependency management under dependencyManagement > dependencies:

Com.alibaba.cloud

Spring-cloud-starter-alibaba-nacos-discovery

${nacos.version}

Com.alibaba.cloud

Spring-cloud-alibaba-starters

${nacos.version}

In the Gateway project, pom.xml adds:

Com.alibaba.cloud

Spring-cloud-starter-alibaba-nacos-discovery

Com.alibaba.cloud

Spring-cloud-starter-alibaba-nacos-discovery

Then go back and set it in bootstrap:

Spring:

Application:

Name: gateway

Cloud:

Nacos:

Config:

Server-addr: 127.0.0.1 server-addr 8848 this is what the editor shares about the creation of a Nacos and gateway center. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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