Linux系统安装JDK1.8指南

cat /etc/sysconfig/i18n
cp /etc/sysconfig/i18n /etc/sysconfig/i18n.old
vi /etc/sysconfig/i18n
LANG="zh_CN.GBK"
SUPPORTED="zh_CN.GBK:zh:zh_CN.GB2312:zh:zh_CN.UTF-8:zh_CN:zh:en_US.UTF-8:en_US:en"
SYSFONT="latarcyrheb-sun16"
vi /etc/profile   //添加NLS_LANG设置
export NLS_LANG='SIMPLIFIED CHINESE_CHINA'.ZHS16GBK
cat /etc/sysconfig/clock
ZONE="Asia/Shanghai"
cp /etc/syconfig/clock /etc/sysconfig/clock.old
vim /etc/sysconfig/clock
ZONE="Asia/Shanghai"
UTC=false
ARC=false
mv /etc/localtime /etc/localtime.bak
ln -sf /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
rz   //上传jdk-8u131-linux-x64.tar.gz
mkdir -p /root/jdk         //创建源码解压缩文件存放目录
tar -zxvf jdk-8u131-linux-x64.tar.gz -C /root/jdk/

vi /root/.bash_profile   //编辑root用户的JAVA环境变量
export JAVA_HOME=/root/jdk/jdk1.8.0_131
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/jre/lib/rt.jar
NLS_LANG='SIMPLIFIED CHINESE_CHINA'.ZHS16GBK
export PATH=$JAVA_HOME/bin:$PATH
ulimit -u 4096

source /root/.bash_profile    //让/root/.bash_profile环境变量立刻生效
java -version  //查看root用户的java版本
java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)