【CentOS环境部署】CentOS下部署Java7/Java8

http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
#（1）下载之后FTP到服务器
#（2）获取到下载链接后，用wget命令下载

sudo mkdir -p /usr/java 
sudo tar zvxf jdk-8u131-linux-x64.tar.gz -C /usr/java

vi /etc/profile
# 在export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL下添加

export JAVA_HOME=/usr/java/jdk1.8.0_131
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

source /etc/profile

java -version