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Maven环境配置

Maven 是基于Java 的工具，所以第一要求是JDK有安装在你的机器上。

系统要求

JDK	1.5 or above.
Memory	no minimum requirement.
Disk Space	no minimum requirement.
Operating System	no minimum requirement.

Step 1 - 验证Java已经在你的机器上安装

现在，打开控制台，然后执行下面的java命令。

OS	Task	Command
Windows	Open Command Console	c:/> java -version
Linux	Open Command Terminal	$ java -version
Mac	Open Terminal	machine:~ joseph$ java -version

让我们来验证所有操作系统的输出：

OS	Output
Windows	java version "1.6.0_21" Java(TM) SE Runtime Environment (build 1.6.0_21-b07) Java HotSpot(TM) Client VM (build 17.0-b17, mixed mode, sharing)
Linux	java version "1.6.0_21" Java(TM) SE Runtime Environment (build 1.6.0_21-b07) Java HotSpot(TM) Client VM (build 17.0-b17, mixed mode, sharing)
Mac	java version "1.6.0_21" Java(TM) SE Runtime Environment (build 1.6.0_21-b07) Java HotSpot(TM)64-Bit Server VM (build 17.0-b17, mixed mode, sharing)

如果没有安装Java，安装Java软件开发工具包（SDK）http://www.oracle.com/technetwork/java/javase/downloads/index.htmll。我们假设在本教程中安装的版本Java1.6.0_21。

Step 2: 设置Java环境

设置JAVA_HOME环境变量指向的基目录位置在您的机器上已安装Java。例如：

OS	Output
Windows	Set the environment variable JAVA_HOME to C:/Program Files/Java/jdk1.6.0_21
Linux	export JAVA_HOME=/usr/local/java-current
Mac	export JAVA_HOME=/Library/Java/Home

添加到系统路径中的Java编译器的位置。

OS	Output
Windows	Append the string ;C:/Program Files/Java/jdk1.6.0_21/bin to the end of the system variable, Path.
Linux	export PATH=$PATH:$JAVA_HOME/bin/
Mac	not required

验证Java安装使用java-version命令解释上述。

Step 3: 下载Maven档案

从http://maven.apache.org/download.htmll 下载Maven2.2.1

OS	Archive name
Windows	apache-maven-2.0.11-bin.zip
Linux	apache-maven-2.0.11-bin.tar.gz
Mac	apache-maven-2.0.11-bin.tar.gz

Step 4: 提取Maven的存档

解压压缩包，希望安装Maven2.2.1的目录。从归档文件中将创建的子目录中的Apache Maven2.2.1。

OS	Location (can be different based on your installation)
Windows	C:/Program Files/Apache Software Foundation/apache-maven-2.2.1
Linux	/usr/local/apache-maven
Mac	/usr/local/apache-maven

Step 5: 设置Maven的环境变量

添加 M2_HOME，M2，MAVEN_OPTS 环境变量。

OS	Output
Windows	Set the environment variables using system properties. M2_HOME=C:/Program Files/Apache Software Foundation/apache-maven-2.2.1 M2=%M2_HOME%/bin MAVEN_OPTS=-Xms256m -Xmx512m
Linux	Open command terminal and set environment variables. export M2_HOME=/usr/local/apache-maven/apache-maven-2.2.1 export M2=%M2_HOME%/bin export MAVEN_OPTS=-Xms256m -Xmx512m
Mac	Open command terminal and set environment variables. export M2_HOME=/usr/local/apache-maven/apache-maven-2.2.1 export M2=%M2_HOME%/bin export MAVEN_OPTS=-Xms256m -Xmx512m

Output

Windows

Set the environment variables using system properties.

M2_HOME=C:/Program Files/Apache Software Foundation/apache-maven-2.2.1

M2=%M2_HOME%/bin

MAVEN_OPTS=-Xms256m -Xmx512m

Linux

Open command terminal and set environment variables.

export M2_HOME=/usr/local/apache-maven/apache-maven-2.2.1

export M2=%M2_HOME%/bin

export MAVEN_OPTS=-Xms256m -Xmx512m

Mac

Open command terminal and set environment variables.

export M2_HOME=/usr/local/apache-maven/apache-maven-2.2.1

export M2=%M2_HOME%/bin

export MAVEN_OPTS=-Xms256m -Xmx512m

Step 6: Maven bin目录位置添加到系统路径

现在，附加M2变量系统路径

OS	Output
Windows	Append the string ;%M2% to the end of the system variable, Path.
Linux	export PATH=$M2:$PATH
Mac	export PATH=$M2:$PATH

Step 8: 验证Maven安装

现在打开控制台，执行以下mvn命令

OS	Task	Command
Windows	Open Command Console	c:/> mvn --version
Linux	Open Command Terminal	$ mvn --version
Mac	Open Terminal	machine:~ joseph$ mvn --version

最后，验证上述的命令的输出，这应该是如下的内容：

OS	Output
Windows	Apache Maven 2.2.1 (r801777; 2009-08-07 00:46:01+0530) Java version: 1.6.0_21 Java home: C:/Program Files/Java/jdk1.6.0_21/jre
Linux	Apache Maven 2.2.1 (r801777; 2009-08-07 00:46:01+0530) Java version: 1.6.0_21 Java home: C:/Program Files/Java/jdk1.6.0_21/jre
Mac	Apache Maven 2.2.1 (r801777; 2009-08-07 00:46:01+0530) Java version: 1.6.0_21 Java home: C:/Program Files/Java/jdk1.6.0_21/jre