consul 服务一直注册失败

Question

在springcloud中，我想用consul作为注册中心，但是服务一直注册都是失败的

我的配置文件是这样的

server:
  port: 9100
###服务的名字
spring:
  application:
    name: mzd-consul-member
  cloud:
    consul:
      ##配置consul的ip和端口
      host: 127.0.0.1
      port: 8500
      discovery:
        ##配置这个服务的ip地址
        hostname: 127.0.0.1

server:
  port: 9200
###服务的名字
spring:
  application:
    name: mzd-consul-order
  cloud:
    consul:
      ##配置consul的ip和端口
      host: 127.0.0.1
      port: 8500
      discovery:
        ##配置这个服务的ip地址
        hostname: 127.0.0.1

pom文件：

<!--管理依赖 -->
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Finchley.M7</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.1.RELEASE</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>



    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-consul-discovery</artifactId>
        </dependency>

    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
    <!--注意：这里必须要添加，否则各种依赖有问题 -->
    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/libs-milestone</url>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

启动类：

@SpringBootApplication
@EnableDiscoveryClient
public class ConsulorderApplication {

    public static void main(String[] args) {
        SpringApplication.run(ConsulorderApplication.class, args);
    }

    @Bean
    @LoadBalanced
    public RestTemplate getRestTemplate() {
        return new RestTemplate();
    }
}

请问一下，为什么一直注册不成功呢？难道consul需要其他操作吗。我eureka和zookeeper都能注册成功。。。