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This article mainly explains "Spring Cloud Alibaba Nacos Config Instance Analysis". The explanation content in this article is simple and clear, easy to learn and understand. Please follow the idea of Xiaobian slowly and deeply to study and learn "Spring Cloud Alibaba Nacos Config Instance Analysis" together!

1, Install Nacos1, Download Nacos

Download the latest stable version: github.com/alibaba/nacos/releases

2. Start Nacos

Start Nacos (standalone mode)

sh startup.sh -m standalone

Close Nacos

sh shutdown.sh II. Configure Nacos1. Open Nacos

Default address: 127.0.0.1:8848/nacos/#/login

Default account: Same account password, both nacos

2. Add configuration

Configuration data:

Data ID: nacos-dev.propertiesGroup : DEFAULT_GROUP Configuration format: Properties Configuration Content: useLocalCache=true

Data ID format description:

${prefix}-${spring.profile.active}.$ {file-extension}

prefix:

Default is spring.application.name value, can also be configured through the configuration item spring.cloud.nacos.config.prefix

spring.profile.active:

That is, the profile corresponding to the current environment. Note: When spring.profile.active is empty, the corresponding connector-will not exist, and the concatenation format of dataId will be changed to ${prefix}.$ {file-extension}

file-exetension:

To configure the data format of the content, you can configure it through the configuration item spring.cloud.nacos.config.file-extension. Currently only properties and yaml types are supported

Examples:

spring.application.name=nacosspring.profiles.active=devspring.cloud.nacos.config.file-extension=properties

Data ID is: nacos-dev.properties

III. Use of Nacos

Add nacos support to pom.xml

org.springframework.cloud spring-cloud-starter-alibaba-nacos-config 0.9.0.RELEASE

bootstrap.properties Add nacos parameter

server.port=8080spring.profiles.active=devspring.application.name=nacosspring.cloud.nacos.config.server-addr=127.0.0.1:8848spring.cloud.nacos.config.file-extension=properties

spring.cloud.nacos.config.server-addr: Server address for nacos: port, port 80 cannot be omitted

spring.cloud.nacos.config.file-extension: supported file types for nacos, e.g. yaml and properties

IV. Call Nacos

@Value SpEL call

@RefreshScope Turn on auto-refresh

package com.ichochy.nacos.controller;import org.springframework.beans.factory.annotation.Value;import org.springframework.cloud.context.config.annotation.RefreshScope;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RestController;@RestController@RequestMapping("/config")@RefreshScopepublic class ConfigController { @Value("${useLocalCache:false}") private boolean useLocalCache; @RequestMapping("get") public boolean getConfig(){ System.out.println(useLocalCache); return useLocalCache; }} Thank you for reading, the above is the content of "Spring Cloud Alibaba Nacos Config instance analysis", after learning this article, I believe that everyone has a deeper understanding of Spring Cloud Alibaba Nacos Config instance analysis, and the specific use needs to be verified by practice. Here is, Xiaobian will push more articles related to knowledge points for everyone, welcome to pay attention!

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