Maven配置

从Apache下载后解压 http://maven.apache.org/download.cgi

然后配置环境变量，以下是maven官方的说明

Windows

1. Unzip the distribution archive, i.e. apache-maven-3.2.3-bin.zip to the directory you wish to install Maven 3.2.3. These instructions assume you chose C:\Program Files\Apache Software Foundation. The subdirectory apache-maven-3.2.3 will be created from the archive.
2. Add the M2_HOME environment variable by opening up the system properties (WinKey + Pause), selecting the "Advanced" tab, and the "Environment Variables" button, then adding the M2_HOME variable in the user variables with the value C:\Program Files\Apache Software Foundation\apache-maven-3.2.3. Be sure to omit any quotation marks around the path even if it contains spaces. Note: For Maven 2.0.9, also be sure that the M2_HOME doesn't have a '\' as last character. 
3. In the same dialog, add the M2 environment variable in the user variables with the value %M2_HOME%\bin.
4. Optional: In the same dialog, add the MAVEN_OPTS environment variable in the user variables to specify JVM properties, e.g. the value -Xms256m -Xmx512m. This environment variable can be used to supply extra options to Maven.
5. In the same dialog, update/create the Path environment variable in the user variables and prepend the value %M2% to add Maven available in the command line.
6. In the same dialog, make sure that JAVA_HOME exists in your user variables or in the system variables and it is set to the location of your JDK, e.g. C:\Program Files\Java\jdk1.7.0_51and that %JAVA_HOME%\bin is in your Path environment variable.
7. Open a new command prompt (Winkey + R then type cmd) and run mvn --version to verify that it is correctly installed.

Unix-based Operating Systems (Linux, Solaris and Mac OS X)

1. Extract the distribution archive, i.e. apache-maven-3.2.3-bin.tar.gz to the directory you wish to install Maven 3.2.3. These instructions assume you chose /usr/local/apache-maven. The subdirectory apache-maven-3.2.3 will be created from the archive.
2. In a command terminal, add the M2_HOME environment variable, e.g. export M2_HOME=/usr/local/apache-maven/apache-maven-3.2.3.
3. Add the M2 environment variable, e.g. export M2=$M2_HOME/bin.
4. Optional: Add the MAVEN_OPTS environment variable to specify JVM properties, e.g. export MAVEN_OPTS="-Xms256m -Xmx512m". This environment variable can be used to supply extra options to Maven.
5. Add M2 environment variable to your path, e.g. export PATH=$M2:$PATH.
6. Make sure that JAVA_HOME is set to the location of your JDK, e.g. export JAVA_HOME=/usr/java/jdk1.7.0_51 and that $JAVA_HOME/bin is in your PATH environment variable.
7. Run mvn --version to verify that it is correctly installed.

需要安装 java

需要的环境变量为

M2_HOME  maven路径

M2 %M2_HOME%\bin

MAVEN_OPTS -Xms256m -Xmx512m这个是java虚拟机内存设置

然后把%M2%加入到path中，运行mvn --version检查是否配置成功