linux安装jdk和maven及相关配置

jdk和maven安装包放在/usr/local下。
[root@smscloud local]# cd /usr/local
[root@smscloud local]# tar zvxf apache-maven-3.2.2-bin.tar.gz 
[root@smscloud local]# tar zxvf jdk-7u76-linux-x64.tar.gz
[root@smscloud local]# vi /etc/profile
在第二行也就是# /etc/profile下边增加
export JAVA_HOME=/usr/local/jdk1.7.0_76
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$JAVA_HOME/bin:$PATH
export MAVEN_HOME=/usr/local/apache-maven-3.2.2
export PATH=$PATH:$MAVEN_HOME/bin
[root@smscloud local]# source /etc/profile
[root@smscloud local]# java -version
[root@smscloud local]# mvn -version
Apache Maven 3.2.2 (45f7c06d68e745d05611f7fd14efb6594181933e; 2014-06-17T06:51:42-07:00)
Maven home: /usr/local/apache-maven-3.2.2
Java version: 1.7.0_76, vendor: Oracle Corporation
Java home: /usr/local/jdk1.7.0_76/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "2.6.32-431.el6.x86_64", arch: "amd64", family: "unix"

maven
1.settings.xml位置：即安装路径/usr/local/apache-maven-3.2.2/conf
2.repository位置：通过settings.xml的参数可以知道，它的默认下载路径是：Default: $user.home/.m2/repository，很多人会问${user.home}是指哪里, 通过确认，即为：/root/.m2/repository