1 建立父工程

建立統一的父工程：aozhan1，用來管理依賴及其版本，注意是建立project，而不是module

pom.xml檔案：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
 
>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.aozhan1.parent</groupId>
    <artifactId>aozhan1</artifactId>
    <packaging>pom</packaging>
    <version>1.0-SNAPSHOT</version>
    <modules>
        <module>aozhan-register</
 
module>
    </modules>

    <name>aozhan1</name>
    <description>Demo project for Spring Boot</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <
 
version>2.1.7.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>
        <spring-cloud.version>Greenwich.SR2</spring-cloud.version>
        <mybatis.starter.version>1.3.2</mybatis.starter.version>
        <mapper.starter.version>2.0.2</mapper.starter.version>
        <druid.starter.version>1.1.9</druid.starter.version>
        <mysql.version>5.1.32</mysql.version>
        <pageHelper.starter.version>1.2.3</pageHelper.starter.version>
        <leyou.latest.version>1.0.0-SNAPSHOT</leyou.latest.version>
        <fastDFS.client.version>1.26.1-RELEASE</fastDFS.client.version>
    </properties>

    <dependencyManagement>
        <dependencies>
            <!-- springCloud -->
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!-- mybatis啟動器 -->
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.starter.version}</version>
            </dependency>
            <!-- 通用Mapper啟動器 -->
            <dependency>
                <groupId>tk.mybatis</groupId>
                <artifactId>mapper-spring-boot-starter</artifactId>
                <version>${mapper.starter.version}</version>
            </dependency>
            <!-- 分頁助手啟動器 -->
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper-spring-boot-starter</artifactId>
                <version>${pageHelper.starter.version}</version>
            </dependency>
            <!-- mysql驅動 -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!--FastDFS客戶端-->
            <dependency>
                <groupId>com.github.tobato</groupId>
                <artifactId>fastdfs-client</artifactId>
                <version>${fastDFS.client.version}</version>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

可以發現，我們在父工程中引入了SpringCloud等，很多以後需要用到的依賴，以後建立的子工程就不需要自己引入了。

最後，刪除src目錄。

2. 建立EurekaServer(微服務註冊中心)

我們的註冊中心，起名為：aozhan-register

(1)選擇新建module：

(2)不要選擇骨架：

(3)然後填寫模組座標，我們的模組名稱為aozhan-register:

(4)選擇安裝目錄，因為是聚合專案，目錄應該是在父工程aozhan1的下面：

當idea目錄中出現下圖情況時：

原因是module name 與file location的路徑不一致。

解決方案：重新命名該模組。將模組名與路徑名改為一致。

(5)新增依賴：

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <parent>
        <artifactId>aozhan1</artifactId>
        <groupId>com.aozhan1.parent</groupId>
        <version>1.0-SNAPSHOT</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <groupId>com.aozhan1.common</groupId>
    <artifactId>aozhan-register</artifactId>

    <dependencies>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
        </dependency>
    </dependencies>
</project>

(6)編寫配置檔案application.yml

server:
  port: 10086
spring:
  application:
    name: leyou-registry
eureka:
  client:
    service-url:
      defaultZone: http://localhost:${server.port}/eureka
    register-with-eureka: false # 把自己註冊到eureka服務列表
  server:
    enable-self-preservation: false # 關閉自我保護
    eviction-interval-timer-in-ms: 5000 # 每隔5秒鐘，進行一次服務列表的清理

(7)編寫啟動類

在java包下新建com.aozhan1包(若不新建會報錯)，再在該包下新建啟動類。

package com.aozhan1;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;

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