1025: JAVA详细写：
http://hermosa-young.iteye.com/blog/1798026
JAVA的安装过程：
下载JAVA SE:
http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
mkdir /usr/java
d:
pscp d:\jdk-8u25-linux-x64.gz root@192.168.224.129:/usr/java
把文件传进去
cd /usr/java tar -xzvf jdk-8u25-linux-x64.gz
mv jdk某某某 jdk
vim /etc/profile
export JAVA_HOME=/usr/java/jdk
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
source /etc/profile
java --version
