(转)maven 配置在eclipse中

maven3 下载配置

下载地址

http://maven.apache.org/download.cgi

在线文档

http://maven.apache.org/ref/3.0.5/

安装

一.安装JDK，配置好JAVA_HOME,配置好PATH

测试

打开cmd

echo %Java_Home%

java -version

二.安装配置manen

1 将下载回来的包解压到任意地址，我的路径是D:\Program Files\apache-maven-3.0.5

2 新建环境变量M2_HOME 指向D:\Program Files\apache-maven-3.0.5

3 在path尾部添加%M2_HOME%\bin

4 检查是否安装成功

打开cmd

echo %M2_HOME%

mvn –v

（mvn -version）

配置文件

D:\Program Files\apache-maven-3.0.5\conf\settings.xml

可配置repository，默认是：用户目录\.m2\repository

--可配置为<localRepository>${env.M2_HOME}/repository</localRepository>

执行mvn help:system

这时候 maven 就会从远程仓库开始下载一大堆的东西，没事，让它下载着，迟早都要下载的。

（默认情况下，~/.m2目录下除了repository仓库之外就没有其他目录和文件了，不过大多数Maven用户需要复制M2_HOME/conf/settings.xml文件到~/.m2/settings.xml。这是一条最佳实践）

三.Eclipse安装maven的插件 m2eclipse

1 打开eclipse

2 Help – Install New Software

Add

m2e

http://m2eclipse.sonatype.org/sites/m2e

此路径已改为以下路径
http://download.eclipse.org/technology/m2e/releases

报错：

Cannot complete the install because one or more required items could not be found.
  Software being installed: m2e - slf4j over logback logging (Optional) 1.4.0.20130601-0317 (org.eclipse.m2e.logback.feature.feature.group 1.4.0.20130601-0317)
  Missing requirement: Maven Integration for Eclipse 1.4.0.20130601-0317 (org.eclipse.m2e.core.ui 1.4.0.20130601-0317) requires 'bundle org.slf4j.api 1.6.2' but it could not be found
  Cannot satisfy dependency:
    From: m2e logback appender 1.4.0.20130601-0317 (org.eclipse.m2e.logback.appender 1.4.0.20130601-0317)
    To: bundle org.eclipse.m2e.core.ui [1.4.0,1.5.0)
  Cannot satisfy dependency:
    From: m2e - slf4j over logback logging (Optional) 1.4.0.20130601-0317 (org.eclipse.m2e.logback.feature.feature.group 1.4.0.20130601-0317)
    To: org.eclipse.m2e.logback.appender [1.4.0.20130601-0317]

三、安装时出现问题： 
    直接在线安装maven2 会出现依赖插件找不到的问题，无法安装。必须先安装gef 插件后才能安装m2eclipse-core 插件，然而安装m2eclipse-extras 插件又依赖subclipse 插件。所以，三个插件的正确的安装顺序是：gef插件 》subclipse插件 》m2eclipse插件。
  m2eclipse-core插件 ——依赖——＞gef插件 
  m2eclipse-extras插件 ——依赖——＞subclipse插件

可能需要先安装gef插件和svn插件

1.4.1 先安装GEF插件

maven插件安装的时辰会依附这个插件，在Eclipse -> help -> Install New SoftWare中安装，

gef

http://download.eclipse.org/tools/gef/updates/interim/

1.4.2 安装SVN插件

在Eclipse -> help -> Install New SoftWare中安装， site:http://subclipse.tigris.org/_1.6.x

安装完gef

还是报错：

Cannot complete the install because one or more required items could not be found.
  Software being installed: m2e - Maven Integration for Eclipse 1.4.0.20130601-0317 (org.eclipse.m2e.feature.feature.group 1.4.0.20130601-0317)
  Missing requirement: async-http-client 1.6.5.20130531-2315 (com.ning.async-http-client 1.6.5.20130531-2315) requires 'package org.slf4j 1.6.2' but it could not be found
  Cannot satisfy dependency:
    From: Maven Archetype Common Bundle 1.4.0.20130531-2315 (org.eclipse.m2e.archetype.common 1.4.0.20130531-2315)
    To: bundle org.eclipse.m2e.maven.runtime [1.4.0,1.5.0)
  Cannot satisfy dependency:
    From: m2e - Maven Integration for Eclipse 1.4.0.20130601-0317 (org.eclipse.m2e.feature.feature.group 1.4.0.20130601-0317)
    To: org.eclipse.m2e.archetype.common [1.4.0.20130531-2315]
  Cannot satisfy dependency:
    From: Embedded Maven Runtime Bundle 1.4.0.20130531-2315 (org.eclipse.m2e.maven.runtime 1.4.0.20130531-2315)
    To: bundle com.ning.async-http-client [1.6.5,1.6.6)