SpringBoot多模块项目搭建
一.模块分层(我知晓的两种)
重点:理清依赖关系
1.按系统功能模块划分
2.按entity层、service层、web(controller)层、common层划分
二.项目搭建(按第二种方法)
1.先建一个普通的SpringBoot项目,作为父模块
2.子模块创建
父项目名称->右键->new->moudle
依次创建entity层、service层、 web层、 common层子模块
3.项目创建完成整体结构图
删除多余的文件,启动类只留下web层的
rescource包创建在common层里,创一个index.html,以便验证启动成功还是失败
<html>
<body>
<h1>hello word!!!</h1>
<p>this is a html page</p>
</body>
</html>
4.调整pom.xml
1)在父项目中要确保声明了所有的子模块
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>multi-module</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>multi-module</name>
<description>multi-module</description>
<properties>
<java.version>1.8</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<spring-boot.version>2.6.13</spring-boot.version>
</properties>
<!-- 添加内容 -->
<packaging>pom</packaging>
<modules>
<module>multi-common</module>
<module>multi-entity</module>
<module>multi-service</module>
<module>multi-web</module>
</modules>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<!-- 添加内容 -->
<dependency>
<groupId>com.example</groupId>
<artifactId>multi-common</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.example</groupId>
<artifactId>multi-entity</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.example</groupId>
<artifactId>multi-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.example</groupId>
<artifactId>multi-web</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-dependencies</artifactId>
<version>${spring-boot.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.1</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<encoding>UTF-8</encoding>
</configuration>
</plugin>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<version>${spring-boot.version}</version>
<configuration>
<mainClass>com.example.MultiModuleApplication</mainClass>
<skip>true</skip>
</configuration>
<executions>
<execution>
<id>repackage</id>
<goals>
<goal>repackage</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
2)调整子模块pom.xml
按照依赖关系调整
(1)multi-common包
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.example</groupId>
<artifactId>multi-module</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<artifactId>multi-common</artifactId>
<description>通用工具类模块</description>
<dependencies>
<!--所有模块都需要使用的依赖-->
<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>
</dependencies>
</project>
(2)multi-entity包
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.example</groupId>
<artifactId>multi-module</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>com.example</groupId>
<artifactId>multi-entity</artifactId>
<description>entity层</description>
<dependencies>
<!--依赖公共模块-->
<dependency>
<groupId>com.example</groupId>
<artifactId>multi-common</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<!--所有模块都需要使用的依赖-->
</dependencies>
</project>
(3)multi-service包
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.example</groupId>
<artifactId>multi-module</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>com.example</groupId>
<artifactId>multi-service</artifactId>
<description>service层</description>
<dependencies>
<!--依赖公共模块和entity层-->
<dependency>
<groupId>com.example</groupId>
<artifactId>multi-common</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.example</groupId>
<artifactId>multi-entity</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<!--所有模块都需要使用的依赖-->
</dependencies>
</project>
(4)multi-web包
<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>com.example</groupId>
<artifactId>multi-module</artifactId>
<version>0.0.1-SNAPSHOT</version>
</parent>
<groupId>com.example</groupId>
<artifactId>multi-web</artifactId>
<description>web层</description>
<dependencies>
<!--依赖公共模块和service层-->
<dependency>
<groupId>com.example</groupId>
<artifactId>multi-common</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>com.example</groupId>
<artifactId>multi-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
</dependency>
<!--所有模块都需要使用的依赖-->
</dependencies>
</project>
5.启动MultiWebApplication启动类,访问http://localhost:8080/
启动成功
,SpringBoot多模块项目搭建完成