Spring Cloud配置中心客户端读取配置

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微服务连接配置中心来实现外部配置的读取。

引入依赖

<dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</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-aop</artifactId> </dependency> <dependency> <groupId>org.springframework.retry</groupId> <artifactId>spring-retry</artifactId> </dependency> </dependencies>

spring-cloud-starter-config：配置中心客户端的依赖。

spring-boot-starter-aop,spring-retry：这两个是连接配置中心快速失败和重试需要用到的依赖。

增加启动类

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

添加配置

在bootstrap.yml中添加如下配置，必须是bootstrap，application中不行。

spring: application: name: config-client cloud: config: #username: #password: name: ${git.application} profile: ${git.profile} label: ${git.label} fail-fast: true retry: initial-interval: 2000 max-attempts: 5 discovery: enabled: true service-id: config-center eureka: client: serviceUrl: defaultZone: ${register-center.urls}

可以看出配置比较简单，下面也不再详述。

application.yml配置文件参考如下：

spring: profiles: active: config-client1eureka: instance: prefer-ip-address: true instance-id: ${spring.cloud.client.ipAddress}:${server.port} lease-expiration-duration-in-seconds: ${lease-expiration-duration-in-seconds} lease-renewal-interval-in-seconds: ${lease-renewal-interval-in-seconds}--- spring: profiles: config-client1server: port: ${config-client1.server.port}--- spring: profiles: config-client2server: port: ${config-client2.server.port}