maven 内置變量對應目錄

在建立Maven工程後，插件配置中通常會用到一些Maven變量，是以需要找個地方對這些變量進行統一定義，下面介紹如何定義自定義變量。

在根節點project下增加properties節點，所有自定義變量均可以定義在此節點内，如下所示：

<!-- 全局屬性配置 -->
<properties>
<project.build.name>tools</project.build.name>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>      

Maven内置變量說明：

${basedir} 項目根目錄

${project.build.directory} 建構目錄，預設為target

${project.build.outputDirectory} 建構過程輸出目錄，預設為target/classes

${project.build.finalName} 産出物名稱，預設為${project.artifactId}-${project.version}

${project.packaging} 打包類型，預設為jar

${project.xxx} 目前pom檔案的任意節點的内容

pom中對應元素的值。例如${project.artifactId}對應了<project><artifactId>元素的值，常用的POM屬性包括：                                     

${project.build.sourceDirectory}:項目的主源碼目錄，預設為src/main/java/.                                                                               

 ${project.build.testSourceDirectory}:項目的測試源碼目錄，預設為/src/test/java/.                                                                                             

${project.build.directory}:項目建構輸出目錄，預設為target/.                  

 ${project.build.outputDirectory}:項目主代碼編譯輸出目錄，預設為target/classes/.                                                                                 

 ${project.build.testOutputDirectory}:項目測試代碼編譯輸出目錄，預設為target/testclasses/.                                                                              

 ${project.groupId}:項目的groupId.                                                          

 ${project.artifactId}:項目的artifactId.