Maven Archetype

1. 從project建立archetype

在項目根目錄下，運行 

mvn archetype:create-from-project  

建立的archetype工程在 app_folder/target/generated-sources/archetype 目錄下，其中archetype-resources包含用來建立原型項目的文件，META-INF/maven/archetype-metadata.xml 是用來對文件結構進行詳細描述的源文件。

2. Archetype的一些built-in參數

Variable	Meaning
__rootArtifactId__	作文件夾名替換用，例如__rootArtifactId__-dal
${rootArtifactId}	Already explained above, it holds the value entered by the user as the project name (the value that maven ask as the artifactId: in the prompt when the user runs the archetype)
${artifactId}	If your project is composed by one module, this variable will have the same value as ${rootArtifactId}, but if the project contains several modules, this variable will be replaced by the module name inside every module folder, for example: given a module named portlet-domain inside a project namedportlet, all the files inside this module folder that are to be filtered will have the value of the variable ${artifactId} replaced by portlet-domainwhereas the ${rootArtifactId} variable will be replaced by portlet
${package}	The user provided package for the project, also prompted by maven when the user runs the archetype
${packageInPathFormat}	The same value as ${package} variable but replacing '.' with the character'/', e.g:, for the package com.foo.bar this variable is com/foo/bar
${groupId}	The user supplied groupId for the project, prompted by maven when the user runs the archetype
${version}	The user supplied version for the project, prompted by maven when the user runs the archetype

 

The  archetype-metadata.xml  stored in the archetype-resources/META-INF/maven folder after the project is created, is where you need to tweak what you want generated and how.

• id – This is the name of the module that will be generated.
• dir – the template dir
• name – the artifact Id that will be put in the pom file.

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