1 创建父容器项目

修改pom.xml文件

<packaging>pom</packaging>
<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <junit.version>4.12</junit.version>
        <log4j.version>1.2.17</log4j.version>
        <lombok.version>1.18.16</lombok.version>
        <mysql.version>8.0.22</mysql.version>
        <druid.version>1.2.4</druid.version>
        <mybatis.spring.boot.version>2.1.3</mybatis.spring.boot.version>
        <springboot.version>2.3.2.RELEASE</springboot.version>
        <springcloud.version>Hoxton.SR8</springcloud.version>
        <alibaba.version>2.2.5.RELEASE</alibaba.version>
    </properties>
    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <version>${lombok.version}</version>
            </dependency>
            <!-- 下面三个基本是微服务架构的标配 -->
            <!--spring boot 2.2.2-->
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-dependencies</artifactId>
                <version>${springboot.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--spring cloud Hoxton.SR1-->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${springcloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!--spring cloud 阿里巴巴-->
            <dependency>
                <groupId>com.alibaba.cloud</groupId>
                <artifactId>spring-cloud-alibaba-dependencies</artifactId>
                <version>${alibaba.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

            <!--mysql-->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
                <scope>runtime</scope>
            </dependency>
            <!-- druid-->
            <dependency>
                <groupId>com.alibaba</groupId>
                <artifactId>druid</artifactId>
                <version>${druid.version}</version>
            </dependency>
            <!--junit-->
            <dependency>
                <groupId>junit</groupId>
                <artifactId>junit</artifactId>
                <version>${junit.version}</version>
            </dependency>
            <!--log4j-->
            <dependency>
                <groupId>log4j</groupId>
                <artifactId>log4j</artifactId>
                <version>${log4j.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>
    <!--指定使用maven打包-->
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <configuration>
                    <skipTests>true</skipTests>    <!--默认关掉单元测试 -->
                </configuration>
            </plugin>
        </plugins>
    </build>

2 创建自定义eureka-server模块

• 修改pom.xml文件

<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>
       <!--eureka注册中心又称为（eureka服务）-->
       <dependency>
           <groupId>org.springframework.cloud</groupId>
           <artifactId>spring-cloud-starter-netflix-eureka-server</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-actuator</artifactId>
       </dependency>
   </dependencies>
    <!--spring boot打包的话需要指定一个唯一的入门-->
    <build>
        <finalName>eureka-server</finalName>
        <resources>
            <resource>
                <directory>src/main/java</directory>
                <includes>
                    <include>**/*.*</include>
                </includes>
                <excludes>
                    <exclude>**/*.java</exclude>
                </excludes>
                <filtering>false</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>**/*.*</include>
                </includes>
                <filtering>false</filtering>
            </resource>
            <resource>
                <directory>src/main/resources</directory>
                <includes>
                    <include>*.properties</include>
                    <include>*.xml</include>
                    <include>**/*.properties</include>
                    <include>**/*.xml</include>
                </includes>
                <filtering>true</filtering>
            </resource>
        </resources>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <configuration>
                    <!-- 指定该Main Class为全局的唯一入口 -->
                    <mainClass>com.demo.EureserverStarter</mainClass>
                    <layout>ZIP</layout>
                </configuration>
                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal><!--可以把依赖的包都打包到生成的Jar包中-->
                        </goals>
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>

• 创建启动类

//@EnableEurekaServer开启EurekaServer的功能
@EnableEurekaServer
@SpringBootApplication
public class EureserverStarter {
    public static void main(String[] args) {
        SpringApplication.run(EureserverStarter.class,args);
    }
}

• 创建src/main/resources/application.yml配置文件

server:
  port: 8761
eureka:
  instance:
    hostname: master  # eureka 服务器的实例名称
    # InstanceId是Eureka服务的唯一标记，主要用于区分同一个集群的不同实例
    instance-id: ${spring.application.name}:${vcap.application.instace_id:${spring.application.instance_id:${random.value}}}
  client:
    # false 代表不向服务注册中心注册自己，因为它本身就是服务中心
    register-with-eureka: true
    # false 代表自己就是服务注册中心，自己的作用就是维护服务实例，并不需要去检索服务
    fetch-registry: true
    service-url:
      # 设置与 Eureka Server 交互的地址，查询服务 和 注册服务都依赖这个地址
      defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/

3 使用IDEA打包为jar文件，执行运行命令

java -jar  xxxx.jar  --server.port=8001