0x01 简介
pring Cloud Config支持在Git, SVN和本地存放配置文件，使用Git或者SVN存储库可以很好地支持版本管理，Spring默认配置是使用Git存储库。
0x02 代码
@EnableConfigServer
@SpringCloudApplication
public class ConfigServerApplication {
public static void main(String[] args) {
SpringApplication.run(ConfigServerApplication.class, args);
}
}
0x03 依赖
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-hystrix</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-monitor</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bus-amqp</artifactId>
</dependency>
<dependency>
<groupId>org.jolokia</groupId>
<artifactId>jolokia-core</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
0x03 git
server:
port: 8003
spring:
rabbitmq:
host: kof-ms.sys.ledo.com
username: guest
password: guest
virtual-host: /
listener:
retry:
enabled: true
template:
retry:
enabled: true
cloud:
config:
server:
git:
uri: git的地址
0x04 svn
其他依赖
<dependency>
<groupId>org.tmatesoft.svnkit</groupId>
<artifactId>svnkit</artifactId>
</dependency>
配置
server:
port: 8003
spring:
rabbitmq:
host: kof-ms.sys.ledo.com
username: guest
password: guest
virtual-host: /
listener:
retry:
enabled: true
template:
retry:
enabled: true
profiles:
active: subversion
cloud:
config:
enabled: true
server:
svn:
uri: svn地址
username: 'xxx'
password: 'xxx'
default-label: trunk
application:
name: 'kof-config-server'
0x05 native
server:
port: 8003
spring:
rabbitmq:
host: kof-ms.sys.ledo.com
username: guest
password: guest
virtual-host: /
listener:
retry:
enabled: true
template:
retry:
enabled: true
profiles:
active: subversion
cloud:
config:
enabled: true
server:
native:
searchLocations: 本地仓库地址
application:
name: 'kof-config-server'
0x06 uri规则
访问资源可以通过
/{application}/{profile}[/{label}]
/{application}-{profile}.yml
/{label}/{application}-{profile}.yml
/{application}-{profile}.properties
/{label}/{application}-{profile}.properties
{application} 对应客户端的”spring.application.name”
{profile} 对应客户端的”spring.profiles.active”（逗号分隔）
{label} 服务端依赖的资源文件标记（比如git 的master）
0x07 通过eureka发现config server
在config client新建一个bootstrap.yml，写入如下代码。
server:
port: 8000
eureka:
client:
serviceUrl:
defaultZone: 'http://kof-ms.sys.ledo.com:8761/eureka/,http://kof-ms.sys.ledo.com:8762/eureka/'
instance:
preferIpAddress: true
spring:
cloud:
config:
enabled: true
label: trunk
profile: dev
discovery:
enabled: true
service-id: 'config-server'
在spring boot中，bootstrap.yml会比application.yml先行加载。如果把这段配置贴在application.yml中，会发现：
c.c.c.ConfigServicePropertySourceLocator : Fetching config from server at: http://localhost:8888
而不是我们期望的config-server地址，所以需要将对发现配置中心的配置放到bootstrap.yml中才OK。