spring cloud config server接入github

首先，github的内容如下：

地址：https://github.com/stringhuang/SpringCloud-Learning

spring_cloud_in_action/config-repo 存储文件为：didispace-xxx.properties

里面的内容分别为：

commitId为：c9a668d1cf75d7bd5c27f0884214c61b8e0f5c6a

接着，回到springboot, 创建新项目config-server，引入spring-cloud-config-server和dependencyManagement：

<?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>
	<parent>
		<groupId>org.springframework.boot</groupId>
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>2.0.7.RELEASE</version>
		<relativePath/> <!-- lookup parent from repository -->
	</parent>
	<groupId>com.sc</groupId>
	<artifactId>config-server</artifactId>
	<version>0.0.1-SNAPSHOT</version>
	<name>config-server</name>
	<description>Demo project for Spring Boot of Spring Cloud Config Server</description>

	<properties>
		<java.version>1.8</java.version>
	</properties>

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

		<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-test</artifactId>
			<scope>test</scope>
		</dependency>


		<dependency>
			<groupId>org.springframework.cloud</groupId>
			<artifactId>spring-cloud-config-server</artifactId>
			<version>2.0.2.RELEASE</version>
		</dependency>

	</dependencies>

	<dependencyManagement>
		<dependencies>
			<dependency>
				<groupId>org.springframework.cloud</groupId>
				<artifactId>spring-cloud-dependencies</artifactId>
				<version>Finchley.SR2</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>

application.yml定义为：注意，uri和search-paths和上面的github设置一一对应。

spring:
  application:
    name: config-server
  cloud:
    config:
      server:
        git:
          uri: https://github.com/stringhuang/SpringCloud-Learning.git
          username: ********
          password: ******
          search-paths: spring_cloud_in_action/config-repo
server:
  port: 7001

运行之后，curl http://localhost:7001/didispace/prod/master/ 和 curl http://localhost:7001/didispace-prod.properties：

RdeMacBook-Pro:gitRepository r$ curl http://localhost:7001/didispace/prod/master/
{"name":"didispace","profiles":["prod"],"label":"master","version":"c9a668d1cf75d7bd5c27f0884214c61b8e0f5c6a","state":null,"propertySources":[{"name":"https://github.com/stringhuang/SpringCloud-Learning.git/spring_cloud_in_action/config-repo/didispace-prod.properties","source":{"from":"git-prod-1.0"}},{"name":"https://github.com/stringhuang/SpringCloud-Learning.git/spring_cloud_in_action/config-repo/didispace.properties","source":{"from":"git-default-1.0"}}]}
RdeMacBook-Pro:gitRepository r$ 
RdeMacBook-Pro:gitRepository r$ curl http://localhost:7001/didispace-prod.properties
from: git-prod-1.0
RdeMacBook-Pro:gitRepository r$ 

{
	"name": "didispace",
	"profiles": ["prod"],
	"label": "master",
	"version": "c9a668d1cf75d7bd5c27f0884214c61b8e0f5c6a",
	"state": null,
	"propertySources": [{
		"name": "https://github.com/stringhuang/SpringCloud-Learning.git/spring_cloud_in_action/config-repo/didispace-prod.properties",
		"source": {
			"from": "git-prod-1.0"
		}
	}, {
		"name": "https://github.com/stringhuang/SpringCloud-Learning.git/spring_cloud_in_action/config-repo/didispace.properties",
		"source": {
			"from": "git-default-1.0"
		}
	}]
}

应用层面添加注解@EnableConfigServer：

package com.sc.configserver;

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

@SpringBootApplication
@EnableConfigServer
public class ConfigServerApplication {

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

}

其中的，version对应git的commitId，label对应git的branch，name对应spring的application概念，profiles对应spring的profiles概念，propertySources对应具体的文件以及内容。具体关联关系如下：

另外，日志打印显示本地有缓存配置信息：

下面创建新的分支config-label-test，并且把里面的版本号改为2.0：记得push到github。

运行curl http://localhost:7001/didispace/prod/config-label-test/ 和 http://localhost:7001/config-label-test/didispace-prod.properties

RdeMacBook-Pro:gitRepository r$ curl http://localhost:7001/didispace/prod/config-label-test/
{"name":"didispace","profiles":["prod"],"label":"config-label-test","version":"96e64f4e57c93739a5f92fa361830e60a92e620f","state":null,"propertySources":[{"name":"https://github.com/stringhuang/SpringCloud-Learning.git/spring_cloud_in_action/config-repo/didispace-prod.properties","source":{"from":"git-prod-2.0"}},{"name":"https://github.com/stringhuang/SpringCloud-Learning.git/spring_cloud_in_action/config-repo/didispace.properties","source":{"from":"git-default-2.0"}}]}
RdeMacBook-Pro:gitRepository r$ 
RdeMacBook-Pro:gitRepository r$ curl http://localhost:7001/config-label-test/didispace-prod.properties
from: git-prod-2.0
RdeMacBook-Pro:gitRepository r$ 

{
	"name": "didispace",
	"profiles": ["prod"],
	"label": "config-label-test",
	"version": "96e64f4e57c93739a5f92fa361830e60a92e620f",
	"state": null,
	"propertySources": [{
		"name": "https://github.com/stringhuang/SpringCloud-Learning.git/spring_cloud_in_action/config-repo/didispace-prod.properties",
		"source": {
			"from": "git-prod-2.0"
		}
	}, {
		"name": "https://github.com/stringhuang/SpringCloud-Learning.git/spring_cloud_in_action/config-repo/didispace.properties",
		"source": {
			"from": "git-default-2.0"
		}
	}]
}

明显的，获得的内容是分支config-label-test。