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Springboot之多模块项目搭建

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我是靠谱客的博主 儒雅麦片，最近开发中收集的这篇文章主要介绍Springboot之多模块项目搭建，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

Springboot多模块项目搭建(IDEA)

一、创建一个maven项目的作为父项目

点击 File -> new -> new project 创建maven工程

在这里插入图片描述

添加GroupId和ArtifactId

二、为父项目添加模块

在这里插入图片描述
这里仍然选择maven项目，直接点击Next进入下一页面，
在这里插入图片描述
剩下的就是一路next，接着在依次新建各个模块，最后项目目录为下图就可以：

项目目录结构maven结构
在这里插入图片描述在这里插入图片描述

三、各模块的pom文件写法

1. 父模块

<?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>mly-blog-admin</groupId>
    <artifactId>mly-blog-admin</artifactId>
    <version>1.0.0</version>
    <modules>
        <module>mly-blog-mapper</module>
        <module>mly-blog-service</module>
        <module>mly-blog-entity</module>
        <module>mly-blog-api</module>
        <module>mly-blog-web</module>
        <module>mly-blog-common</module>
    </modules>
    <packaging>pom</packaging>
    <properties>
        <mly.blog.version>1.0.0</mly.blog.version>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <maven.compiler.plugin.version>3.1</maven.compiler.plugin.version>
    </properties>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <dependencies>
        <!-- Spring boot 核心web-->
        <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.boot</groupId>
            <artifactId>spring-boot-starter-jdbc</artifactId>
        </dependency>
        <!-- aop -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-aop</artifactId>
        </dependency>
        <!-- mysql连接 -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        <!--引入自定义的数据源-->
        <dependency>
            <groupId>com.alibaba</groupId>
            <artifactId>druid</artifactId>
            <version>1.1.9</version>
        </dependency>
        <!-- apache 工具类 -->
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-io</artifactId>
            <version>1.3.2</version>
        </dependency>
        <!-- mybatis-plus -->
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-boot-starter</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.1.0</version>
        </dependency>
        <dependency>
            <groupId>org.apache.velocity</groupId>
            <artifactId>velocity-engine-core</artifactId>
            <version>2.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok -->
        <dependency>
            <groupId>org.projectlombok</groupId>
            <artifactId>lombok</artifactId>
            <scope>provided</scope>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${maven.compiler.plugin.version}</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

2. 公共模块

<?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>mly-blog-admin</artifactId>
        <groupId>mly-blog-admin</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>mly-blog-common</artifactId>
    <dependencies>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${maven.compiler.plugin.version}</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

3. 实体模块

<?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>mly-blog-admin</artifactId>
        <groupId>mly-blog-admin</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>mly-blog-entity</artifactId>

    <dependencies>
        <dependency>
            <groupId>mly-blog-admin</groupId>
            <artifactId>mly-blog-common</artifactId>
            <version>${mly.blog.version}</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${maven.compiler.plugin.version}</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
        </plugins>
    </build>


</project>

4. Mapper模块

<?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>mly-blog-admin</artifactId>
        <groupId>mly-blog-admin</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>

    <artifactId>mly-blog-mapper</artifactId>

    <dependencies>
        <dependency>
            <groupId>mly-blog-admin</groupId>
            <artifactId>mly-blog-entity</artifactId>
            <version>${mly.blog.version}</version>
        </dependency>
        <dependency>
            <groupId>mly-blog-admin</groupId>
            <artifactId>mly-blog-common</artifactId>
            <version>${mly.blog.version}</version>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${maven.compiler.plugin.version}</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
        </plugins>
    </build>

</project>

5. Server模块

<?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>mly-blog-admin</artifactId>
        <groupId>mly-blog-admin</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>mly-blog-service</artifactId>
    <dependencies>
        <dependency>
            <groupId>mly-blog-admin</groupId>
            <artifactId>mly-blog-entity</artifactId>
            <version>${mly.blog.version}</version>
        </dependency>
        <dependency>
            <groupId>mly-blog-admin</groupId>
            <artifactId>mly-blog-mapper</artifactId>
            <version>${mly.blog.version}</version>
        </dependency>
        <dependency>
            <groupId>mly-blog-admin</groupId>
            <artifactId>mly-blog-common</artifactId>
            <version>${mly.blog.version}</version>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${maven.compiler.plugin.version}</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

5. web模块

<?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>mly-blog-admin</artifactId>
        <groupId>mly-blog-admin</groupId>
        <version>1.0.0</version>
    </parent>
    <modelVersion>4.0.0</modelVersion>
    <artifactId>mly-blog-web</artifactId>
    <dependencies>
        <dependency>
            <groupId>mly-blog-admin</groupId>
            <artifactId>mly-blog-service</artifactId>
            <version>${mly.blog.version}</version>
        </dependency>
        <dependency>
            <groupId>mly-blog-admin</groupId>
            <artifactId>mly-blog-common</artifactId>
            <version>${mly.blog.version}</version>
        </dependency>
        <!-- Spring boot 核心web-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>
    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>${maven.compiler.plugin.version}</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

四、编写yml文件

只有在提供接口的模块才写application.yml文件。

在这里插入图片描述
在这里插入图片描述

五、在项目的启动类上要注意

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

/**
 * @author 易水●墨龙吟
 * @Description
 * @create 2019-03-31 14:43
 */
@SpringBootApplication(scanBasePackages="com.blog")
public class ApiApplication {

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

@SpringBootApplication(scanBasePackages=“com.blog”) , 要将所有包扫描到spring容易，不写可能会出错。

六、启动运行

在这里插入图片描述

最后

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