maven多模块项目打包构建的配置

使用背景：

springboot+maven构建的多模块项目，没有使用springcloud，根项目下有多个module，一个module有springboot启动类，其他module没有启动类，作为module被有springboot启动类的module所引用。

1.根目录下项目maven packaging要声明为pom

 <packaging>pom</packaging>

 2.多个模块管理：

   <modules>
        <module>test-common</module>
        <module>test-system</module>
        <module>test-core</module>
    </modules>

3.build构建声明：

<build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.1</version>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                    <encoding>${project.build.sourceEncoding}</encoding>
                </configuration>
            </plugin>
        </plugins>
    </build>

4.有启动类那个module的项目maven packaging要声明为jar

 <artifactId>test-core</artifactId>
 <packaging>jar</packaging>

5.有启动类那个module的pom.xml引入其他子模块

 <dependencies>
	<dependency>
		<groupId>com.daniels</groupId>
		<artifactId>test-system</artifactId>
		<version>1.0-SNAPSHOT</version>
	</dependency>
	<dependency>
		<groupId>com.daniels</groupId>
		<artifactId>test-common</artifactId>
		<version>1.0-SNAPSHOT</version>
	</dependency>
	
</dependencies>

6.有启动类那个module的pom.xml增加build构建插件：

<build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
                <version>3.1.3</version>

                <executions>
                    <execution>
                        <goals>
                            <goal>repackage</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>3.1.0</version>
                <configuration>
                    <failOnMissingWebXml>false</failOnMissingWebXml>
                    <warName>${project.artifactId}</warName>
                </configuration>
            </plugin>
        </plugins>
        <finalName>${project.artifactId}</finalName>
    </build>

其他没有启动类的module的pom.xml只用引入需要的jar即可，示例：

<?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>
    <parent>
        <groupId>com.daniels</groupId>
        <artifactId>test</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <artifactId>test-system</artifactId>

    <description>
        系统模块
    </description>

    <dependencies>
        <dependency>
            <groupId>com.daniels</groupId>
            <artifactId>test-common</artifactId>
            <version>1.0-SNAPSHOT</version>
        </dependency>
    </dependencies>

</project>

如此便可将有启动类的module打包成Jar，同时将其他引用到子module打包进该jar中。