maven system path，加載本地jar

當引用第三方包，且沒有源代碼時候，可以使用system path

<dependency>
    <groupId>ctec</groupId>
    <artifactId>xxx-core</artifactId>
    <version>1.0</version>
    <scope>system</scope>
    <systemPath>${project.basedir}/src/main/resources/libs/ctec-xxx-core.jar</systemPath>
</dependency>

僅這樣做，並不能將jar包含到war中，需要使用<includeSystemScope>true</includeSystemScope>

<plugins>
    <plugin>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-maven-plugin</artifactId>
        <configuration>
            <includeSystemScope>true</includeSystemScope>
        </configuration>
    </plugin>
</plugins>

常見內置變量

${basedir} 項目根目錄
${project.build.directory} 構建目錄，缺省為target
${project.build.outputDirectory} 構建過程輸出目錄，缺省為target/classes
${project.build.finalName} 產出物名稱，缺省為${project.artifactId}-${project.version}
${project.packaging} 打包類型，缺省為jar
${project.xxx} 當前pom文件的任意節點的內容