idea如何快速创建SpringCloud多模块父子依赖项目(微服务架构)

1 创建父工程

创建统一的父工程：aozhan1，用来管理依赖及其版本，注意是创建project，而不是module

pom.xml文件：

<?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>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
            <!-- mybatis启动器 -->
            <dependency>
                <groupId>org.mybatis.spring.boot</groupId>
                <artifactId>mybatis-spring-boot-starter</artifactId>
                <version>${mybatis.starter.version}</version>
            </dependency>
            <!-- 通用Mapper启动器 -->
            <dependency>
                <groupId>tk.mybatis</groupId>
                <artifactId>mapper-spring-boot-starter</artifactId>
                <version>${mapper.starter.version}</version>
            </dependency>
            <!-- 分页助手启动器 -->
            <dependency>
                <groupId>com.github.pagehelper</groupId>
                <artifactId>pagehelper-spring-boot-starter</artifactId>
                <version>${pageHelper.starter.version}</version>
            </dependency>
            <!-- mysql驱动 -->
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <version>${mysql.version}</version>
            </dependency>
            <!--FastDFS客户端-->
            <dependency>
                <groupId>com.github.tobato</groupId>
                <artifactId>fastdfs-client</artifactId>
                <version>${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>

可以发现，我们在父工程中引入了SpringCloud等，很多以后需要用到的依赖，以后创建的子工程就不需要自己引入了。

最后，删除src目录。

注意：一定要修改maven的仓库配置路径

2. 创建EurekaServer(微服务注册中心)

我们的注册中心，起名为：aozhan-register

(1)选择新建module：

(2)不要选择骨架：

(3)然后填写模块坐标，我们的模块名称为aozhan-register:

(4)选择安装目录，因为是聚合项目，目录应该是在父工程aozhan1的下面：

当idea目录中出现下图情况时：

原因是module name 与file location的路径不一致。

解决方案：重命名该模块。将模块名与路径名改为一致。

(5)添加依赖：

<?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)编写配置文件application.yml

server:
  port: 10086
spring:
  application:
    name: aozhan-register
eureka:
  client:
    service-url:
      defaultZone: http://localhost:${server.port}/eureka
    register-with-eureka: false # 不把自己注册到eureka服务列表
    fetch-registry: false
  server:
    enable-self-preservation: false # 关闭自我保护
    eviction-interval-timer-in-ms: 5000 # 每隔5秒钟，进行一次服务列表的清理

(7)编写启动类

在java包下新建com.aozhan1包(若不新建会报错)，再在该包下新建启动类。

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);
    }
}

(8)项目结构图

3 创建Zuul网关

与上面类似，选择maven方式不使用骨架创建Module，然后填写项目名称，我们命名为：aozhan-gateway

(1)添加依赖

<?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.aozhan.common</groupId>
    <artifactId>aozhan-gateway</artifactId>

    <dependencies>
        <!--导入zuul网关组件依赖-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
        </dependency>

        <!--导入eureka的客户端-->
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <!-- springboot提供微服务检测接口，默认对外提供几个接口 -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-actuator</artifactId>
        </dependency>
    </dependencies>
</project>

(2)编写启动类

package com.aozhan1;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;

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

(3)application.yml配置文件

server:
  port: 10010
spring:
  application:
    name: aozhan-gateway
eureka:
  client:
    registry-fetch-interval-seconds: 5
    service-url:
      defaultZone: http://localhost:10086/eureka
zuul:
  prefix: /api # 路由路径前缀

(4)项目结构