Spring Cloud Config Distributed Configuration Center usage Tutorial

First, Introduction

In distributed systems, because of the large number of services, in order to facilitate the unified management of service profiles, real-time updates, so the need for distributed configuration Center components. In spring cloud, there is a distributed Configuration center component, Spring Cloud Config, which enables configuration services to be placed in the memory of the configuration service (that is, local) and also in a remote Git repository. In Spring Cloud Config component, there are two roles, one is config server and the other is config client.

Second, build config Server

Create a Spring-boot project, named Config-server,pom.xml, to introduce dependencies:

<Dependencies>      <Dependency>            <groupId>Org.springframework.cloud</groupId>            <Artifactid>Spring-cloud-starter-config</Artifactid>        </Dependency>        <!--represented as Web engineering -        <Dependency>            <groupId>Org.springframework.boot</groupId>            <Artifactid>Spring-boot-starter-web</Artifactid>        </Dependency>        <!--exposure to a variety of indicators seems to be necessary -        <Dependency>            <groupId>Org.springframework.boot</groupId>            <Artifactid>Spring-boot-starter-actuator</Artifactid>        </Dependency>          <Dependency>            <groupId>Org.springframework.cloud</groupId>            <Artifactid>Spring-cloud-config-server</Artifactid>        </Dependency>  </Dependencies>

New Entry Class Bootapplication:

Import org.springframework.boot.SpringApplication; Import org.springframework.boot.autoconfigure.SpringBootApplication; Import org.springframework.cloud.config.server.EnableConfigServer, @SpringBootApplication @enableconfigserver  Public class bootapplication {    publicstaticvoid  main (string[] args) {        Springapplication.run (bootapplication. class , args);}    }

Application.properties:

If the Git repository is a public repository, you can not fill in the user name and password, if it is a private warehouse need to fill spring.cloud.config.server.git.password=xxxxoooo

There is a file in the remote repository https://github.com/shaweiwei/myspringcloudconfig/. config-client-dev.properties file has a property:

MYWW=MYWW Version 2

Startup program: Access Http://localhost:7010/myww/dev

proves that the Configuration service center can obtain configuration information from remote programs.

The HTTP request address and resource file mappings are as follows:

• /{application}/{profile}[/{label}]
• /{application}-{profile}.yml
• /{label}/{application}-{profile}.yml
• /{application}-{profile}.properties
• /{label}/{application}-{profile}.properties

Third, build a config client

Re-create a springboot project named Config-client, whose pom file introduces dependencies:

<Dependency>            <groupId>Org.springframework.cloud</groupId>            <Artifactid>Spring-cloud-starter-config</Artifactid>        </Dependency>        <Dependency>            <groupId>Org.springframework.boot</groupId>            <Artifactid>Spring-boot-starter-web</Artifactid>        </Dependency>        <Dependency>            <groupId>Org.springframework.boot</groupId>            <Artifactid>Spring-boot-starter-actuator</Artifactid>        </Dependency>        <Dependency>            <groupId>Org.springframework.boot</groupId>            <Artifactid>Spring-boot-starter-test</Artifactid>            <Scope>Test</Scope>        </Dependency>

Its configuration file bootstrap.properties:

# and Git file names correspond to spring.application.name=config-client# remote repository Branch spring.cloud.config.label=master# Dev Development Environment Profile |  Test Environment  |  Pro Official environment # and GIT filename corresponds to spring.cloud.config.profile=dev# indicates the URL of the Configuration service center spring.cloud.config.uri= http://localhost:7010/ server.port=7020

The entry class of the program, write an API interface "/hi", return the value of the Foo variable read from the configuration center, the code is as follows:

ImportOrg.springframework.beans.factory.annotation.Value;Importorg.springframework.boot.SpringApplication;Importorg.springframework.boot.autoconfigure.SpringBootApplication;Importorg.springframework.web.bind.annotation.RequestMapping;ImportOrg.springframework.web.bind.annotation.RestController, @SpringBootApplication @restcontroller Public classbootapplication { Public Static voidMain (string[] args) {Springapplication.run (bootapplication.class, args); } @Value ("${myww}")//key in git config fileString Myww; @RequestMapping (Value= "/hi")     PublicString hi () {returnMyww; }    }

Open URL Access: Http://localhost:7020/hi, page display:

MYWW Version 2

This means that config-client gets the properties of Foo from Config-server, and Config-server is read from a git repository,

This article source: http://download.csdn.net/download/u013081610/10152869

Spring Cloud Config Distributed Configuration Center usage Tutorial