SpringCloud之Config统一配置中心

新建config服务
pom

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.2.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>
    </properties>

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

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Camden.SR6</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>

    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

启动类

@EnableConfigServer
@SpringBootApplication
public class ConfigServer {
    public static void main(String[] args) {
        SpringApplication.run(ConfigServer.class, args);
    }
}

properties

spring.application.name=config-server
server.port=8767

spring.cloud.config.server.git.uri=https://github.com/roncoo-eshop/roncoo-eshop-config
spring.cloud.config.server.git.searchPaths=config-file
spring.cloud.config.label=master
spring.cloud.config.server.git.username=roncoo-eshop
spring.cloud.config.server.git.password=roncoo123456

其实config服务器配置好了是能直接访问的
http://localhost:8767/defaultName/dev
其中defaultName是我们在git上properties中配的defaultName = leo这个字段

然后
修改需要统一配置的服务，加上config客户端依赖

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

给yml加上，8767是我们config服务器

spring.application.name=config-client
spring.cloud.config.label=master
spring.cloud.config.profile=dev
spring.cloud.config.uri= http://localhost:8767/
server.port=8764
eureka.client.serviceUrl.defaultZone=http://localhost:8761/eureka/
feign.hystrix.enabled=true

此时的情况是：只要在git上config-file文件夹下的properties，config-server都会加载，然后我们在项目中不用写任何properties，直接在项目中@Value就可以和写了properties取得一样的效果，只是这个值是从git上取得的。
使用config的好处是项目要改properties，比如dev改pro，不用重启项目了，直接改git，git一改，项目读取的就是git，也自动跟着改了。