SpringBoot2 Spring Cloud Config Server和Config Client分布式配置中心使用教程

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环境

JAVA 1.8
SpringBoot2 2.0.5.RELEASE

fox.风

SpringBoot2 Spring Cloud Config Server

pom.xml 配置增加

完整的如下

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.foxwho</groupId>
    <artifactId>demo-config-server</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>demo-config-server</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-config-server</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>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>


</project>

建立入口类

（IDEA已经帮我们建立好了）修改增加一些配置即可

package com.foxwho.demo.config.server;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;


@SpringBootApplication
@EnableConfigServer
public class DemoConfigServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoConfigServerApplication.class, args);
    }
}

config server 配置文件仓库配置

假设配置文件仓库是 https://github.com/foxiswho/foxwho-config-repo
其中demo文件夹下配置文件config-client-dev.yml中的内容是

title: Test Name foxwho.com

http请求地址和资源文件映射如下:

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

resources 下 application.yml

application.yml 配置文件内容如下

server:
  port: 8080

spring:
  cloud:
    config:
      #仓库的分支
      label: master
      server:
        default-application-name: @pom.artifactId@
        git:
          #git仓库地址
          uri: https://github.com/foxiswho/foxwho-config-repo
          #仓库路径
          search-paths: demo
          #访问git仓库的用户名
          username:
          #访问git仓库的用户密码 如果Git仓库为公开仓库，可以不填写用户名和密码，如果是私有仓库需要填写
          password:

启动程序访问

浏览器访问

http://localhost:8080/title/dev

显示内容如下

说明配置服务中心可以从远程程序获取配置信息

SpringBoot2 Spring Cloud Config Client

pom.xml 配置增加

完整的如下

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.foxwho</groupId>
    <artifactId>demo-config-client</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>demo-config-client</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.5.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Finchley.SR1</spring-cloud.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-config</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>
    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

建立入口类

（IDEA已经帮我们建立好了）修改增加一些配置即可

package com.foxwho.demo.config.client;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@RestController
public class DemoConfigClientApplication {

    public static void main(String[] args) {
        SpringApplication.run(DemoConfigClientApplication.class, args);
    }

    // git配置文件里的key title
    @Value("${title}")
    String title;

    @RequestMapping(value = "/showTitle")
    public String showTitle() {
        return title;
    }
}

resources 下 增加 bootstrap.yml 配置文件

bootstrap.yml（bootstrap.properties）在application.yml（application.properties）之前加载
更多说明 请看 https://www.cnblogs.com/EasonJim/p/7589546.html

bootstrap.yml 配置文件内容如下

server:
  port: 8090

spring:
  application:
    # 和git里的文件名对应
    name: config-client
  cloud:
    config:
      # 仓库分支
      label: master
      # dev 开发环境配置文件 |  test 测试环境  |  pro 正式环境 和git里的文件名对应
      profile: dev
      # 指明配置服务中心的网址
      uri: http://localhost:8080/

网址访问

http://localhost:8090/showTitle

输出

源码

https://github.com/foxiswho/spring-boot2-config-server-client-demo

来源
https://www.cnblogs.com/shamo89/p/8016908.html