Spring Cloud基础之Config Server配置中心简单搭建

首先需要在Discovery Service章节中的创建Discovery Server服务
创建Config Server服务

//导入包，实际是通过Spring Initializr导入的，Eureka Discovery,Config Server,Actuactor
spring-cloud-config-server
spring-cloud-starter-netflix-eureka-server
spring-boot-starter-actuator
//配置启动类注解EnableConfigServer
@SpringBootApplication
@EnableConfigServer
@EnableDiscoveryClient
public class ConfigServerApplication {
    public static void main(String[] args) {
        SpringApplication.run(ConfigServerApplication.class, args);
    }
}
//配置文件
server.port=8888
spring.cloud.config.server.git.uri=https://github.com/bu6030/scf-config-repository.git
spring.application.name=config-server
eureka.client.service-url.defaultZone=http://localhost:8761/eureka

启动时需要默认的SpringCloudserver已经启动
通过url可以找到对应的配置内容

//配置的Endpoint规则几种方式
GET /{application}/{profile}[/{label}]
/myap/dev/master,/myapp/prod/v2,/myapp/default
GET /{application}-{profile}.(yml | properties)
/myapp-dev.yml,/myapp-prod.properties,/myapp-default.properties
GET /{label}-{application}-{profile}.(yml | properties)
/master/myapp-dev.yml,/v2/myapp-prod.properties,/master/myapp-default.properties

//http://localhost:8888/config-client-app.yml返回内容：
some:
  other:
    property: global
  property: app specific overridden value
//http://localhost:8888/config-client-app.properties返回内容
some.other.property: global
some.property: app specific overridden value
//http://localhost:8888/config-client-app/prod返回内容
{
    "name": "config-client-app",
    "profiles": [
        "prod"
    ],
    "label": null,
    "version": "1cb37c9ba1fa4c17d2ae7489c2e592eba1688547",
    "state": null,
    "propertySources": [
        {
            "name": "https://github.com/bu6030/scf-config-repository.git/config-client-app-prod.properties",
            "source": {
                "some.property": "profile specific value",
                "some.other.property": "profile specific value"
            }
        },
        {
            "name": "https://github.com/bu6030/scf-config-repository.git/config-client-app.properties",
            "source": {
                "some.property": "app specific overridden value"
            }
        },
        {
            "name": "https://github.com/bu6030/scf-config-repository.git/application.properties",
            "source": {
                "some.property": "global",
                "some.other.property": "global"
            }
        }
    ]
}
//http://localhost:8888/config-client-app/default返回内容
{
    "name": "config-client-app",
    "profiles": [
        "default"
    ],
    "label": null,
    "version": "1cb37c9ba1fa4c17d2ae7489c2e592eba1688547",
    "state": null,
    "propertySources": [
        {
            "name": "https://github.com/bu6030/scf-config-repository.git/config-client-app.properties",
            "source": {
                "some.property": "app specific overridden value"
            }
        },
        {
            "name": "https://github.com/bu6030/scf-config-repository.git/application.properties",
            "source": {
                "some.property": "global",
                "some.other.property": "global"
            }
        }
    ]
}

配置config client

//导入包，实际是通过Spring Initializr导入的，Eureka Discovery,Config Client,Actuactor
sspring-cloud-starter-config
spring-cloud-starter-netflix-eureka-client
spring-boot-starter-actuator
//配置启动类注解EnableConfigServer
@SpringBootApplication
@EnableDiscoveryClient
@RestController
public class ConfigClientAppApplication {
    @Autowired
    private ConfigClientAppConfiguration properties;
    @Value("${some.other.property}")
    private String someOtherPorperty;
    public static void main(String[] args) {
        SpringApplication.run(ConfigClientAppApplication.class, args);
    }
    @RequestMapping("/")
    public String printConfig(){
        StringBuffer sb = new StringBuffer();
        sb.append(properties.getProperty());
        sb.append(" || ");
        sb.append(someOtherPorperty);
        return sb.toString();
    }
}
@Component
@ConfigurationProperties(prefix="some")
public class ConfigClientAppConfiguration {
    private String property;
    public String getProperty() {
        return property;
    }
    public void setProperty(String property) {
        this.property = property;
    }
}
//配置文件
server.port=8080
spring.application.name=config-client-app
spring.cloud.config.discovery.enabled=true
eureka.client.service-url.defaultZone=http://localhost:8761/eureka

修改配置文件后自动刷新通过调用http://localhost:8080/actuato...刷新接口
配置文件需要增加

management.endpoints.enabled-by-default=true
management.endpoints.web.exposure.include=refresh,health,bus-refresh
//启动类增加RefreshScope后，@Value也可以刷新
@SpringBootApplication
@EnableDiscoveryClient
@RestController
@RefreshScope
public class ConfigClientAppApplication {
    @Autowired
    private ConfigClientAppConfiguration properties;
    @Value("${some.other.property}")
    private String someOtherPorperty;
    public static void main(String[] args) {
        SpringApplication.run(ConfigClientAppApplication.class, args);
    }
    @RequestMapping("/")
    public String printConfig(){
        StringBuffer sb = new StringBuffer();
        sb.append(properties.getProperty());
        sb.append(" || ");
        sb.append(someOtherPorperty);
        return sb.toString();
    }
}
//刷新服务的方式，
http://localhost:8080/actuator/refresh
http://localhost:8080/actuator/bus-refresh