maven 快速介绍

常用命令

快速创建基本工程

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mvn archetype:generate -DgroupId=com.mycompany.app -DartifactId=my-app -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

打包

mvn package

查看系统环境设置

mvn help:system

基本概念

  • phase
  • plugin/artifact
  • goal

lifecycles & phase

three built-in build lifecycles: default, clean and site.

参见：
http://maven.apache.org/guides/introduction/introduction-to-the-lifecycle.html

the default lifecycle comprises of the following phases :

  • validate- validate the project is correct and all necessary information is available
  • compile- compile the source code of the project
  • test- test the compiled source code using a suitable unit testing framework. These tests should not require the code be packaged or deployed
  • package- take the compiled code and package it in its distributable format, such as a JAR.
  • verify- run any checks on results of integration tests to ensure quality criteria are met
  • install- install the package into the local repository, for use as a dependency in other projects locally
  • deploy- done in the build environment, copies the final package to the remote repository for sharing with other developers and projects.

POM 语法

POM element , default to jar, Some of the valid packaging values are jar, war, ear and pom.

maven 配置

Windows 上的配置文件位置

<mvn-home>/conf/settings.xml

设置本地库的位置

在 settings.xml 中 localRepository 标签

maven 本地库路径修改

默认路径是：${user.home}/.m2/settings.xml

所以Windows上本地库默认在C盘，本地库不断变大会导致C盘空间不足，所以要调整到别的地方。

在maven安装目录/conf/settings.xml中设置就可以了：

D:/maven/repository

也可以将settings.xml拷贝到${user.home}/.m2/下，修改这个settings.xml，这样就只影响当前用户。

设置 remote repository 镜像，国内连官方库很慢

在 settings.xml 中 mirrors 标签