<properties>
        <!-- lombok -->
        <lombok.version>1.18.26</lombok.version>
    </properties>
    <!-- Dependencies -->
    <dependencies>
        <!-- Lombok Dependency -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <version>${lombok.version}</version>
        </dependency>
    </dependencies>

    <dependencies>
        <!-- feign 客戶端 -->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-openfeign</artifactId>
        </dependency>
    </dependencies>

        <dependency>
            <groupId>com.chain</groupId>
   			<artifactId>chain-feign-starter</artifactId>
            <version>${chain.version}</version>
        </dependency>

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

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

@RestController
@RequestMapping(path = "/iot/channel/open/api")
public class IotChannelInterface {
    @Override
    @GetMapping(path = "/testIotChannelFeign")
    public String testIotChannelFeign() {
        return "test iot channel feign open api";
    }
}

@FeignClient(name = "chain-iot-channel", url = "http://localhost:10020", path = "/iot/channel/open/api")
public interface SystemForIotChannelInterfaceClient  {
	@GetMapping(path = "/testIotChannelFeign")
    String testIotChannelFeign();
}

    <dependencies>
        <!-- 自定義 Feign -->
        <dependency>
            <groupId>com.chain</groupId>
            <artifactId>chain-feign-starter</artifactId>
            <version>${chain.version}</version>
        </dependency>
    </dependencies>

public interface IotChannelInterfaceApi {
    /**
     * 測試 iot channel 服務(wù)是否可用
     *
     * @return String
     */
    @GetMapping(path = "/testIotChannelFeign")
    String testIotChannelFeign();
}

        <dependency>
            <groupId>com.chain</groupId>
            <artifactId>chain-iot-channel-api</artifactId>
            <version>${chain.version}</version>
        </dependency>

@RestController
@RequestMapping(path = "/iot/channel/open/api")
public class IotChannelInterface implements IotChannelInterfaceApi {
    @Override
    public String testIotChannelFeign() {
        return "test iot channel feign open api";
    }
}

@FeignClient(name = "chain-iot-channel", url = "http://localhost:10020", path = "/iot/channel/open/api")
public interface SystemForIotChannelInterfaceClient extends IotChannelInterfaceApi {
}