Config Server从本地读取配置文件
将所有的配置文件统一写带Config Server过程的目录下，Config Server暴露Http API接口，Config Client调用Config Server的Http API来读取配置文件
1、引入依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
2、启动类添加@EnableConfigServer注解
@EnableConfigServer
@SpringBootApplication
public class DemoApplication { public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
3、工程配置文件配置本地读取
spring:
cloud:
config:
server:
native:
search-locations: classpath:/shared
profiles:
active: native
application:
name: config-server
server:
port: 9001
4、创建共享配置文件config-client-dev.yml
server:
port: 9002
foo: foo version 1
==========================
1、引入依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
2、bootstrap.yml作为程序的配置文件（bootstrap相对于application具有优先的执行顺序）
spring:
application:
name: config-client
cloud:
config:
uri: http://localhost:9001
fail-fast: true
profiles:
active: dev
这样的客户端程序已经在9002端口启动，也可以像本地文件一样读取远程的配置文件：
@Value("${foo}")
String foo;
@GetMapping("/hi")
public String hi() {
return foo;
}
Config Server从远程Git读取配置文件
spring:
cloud:
config:
server:
git:
uri: https://github.com/forezp/springcloudConfig
search-paths: respo
username: aaa
password: aaa
label: master
application:
name: config-server
高可用Config Server集群
1、配置Eureka Server
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
server:
port: 9003
eureka:
client:
register-with-eureka: false
fetch-registry: false
service-url:
defaultZone: http://localhost:${server.port}/eureka
@EnableEurekaServer
@SpringBootApplication
public class DemoApplication { public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
2、改造config-server
spring:
cloud:
config:
server:
native:
search-locations: classpath:/shared
profiles:
active: native
application:
name: config-server
server:
port: 9001
eureka:
client:
service-url:
defaultZone: http://localhost:9003/eureka
@EnableConfigServer
@SpringBootApplication
@EnableEurekaClient
public class DemoApplication { public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
3、改造config-client
spring:
application:
name: config-client
cloud:
config:
fail-fast: true
discovery:
enabled: true
service-id: config-server
profiles:
active: dev
server:
port: 9002
eureka:
client:
service-url:
defaultZone: http://localhost:9003/eureka
@SpringBootApplication
@RestController
@EnableEurekaClient
public class DemoApplication { @Value("${foo}")
String foo; @GetMapping("/hi")
public String hi() {
return foo;
} public static void main(String[] args) {
SpringApplication.run(DemoApplication.class, args);
}
}
Spring Cloud Bus刷新配置
只需要改造config-client部分，消息驱动
1、引入依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bus-amqp</artifactId>
</dependency>
2、配置文件添加mq连接信息
spring:
application:
name: config-client
cloud:
config:
fail-fast: true
discovery:
enabled: true
service-id: config-server
profiles:
active: dev
rabbitmq:
host:
port:
username:
password:
management:
security:
enabled: false
3、在需要更新的配置类添加@RefreshScope，只有添加了该注解，才会服务不重启的情况下更新配置
4、访问一个应用，http://localhost:9003/bus/refresh即可更新所有集成了config-client的应用的配置信息