CentOS安装Java 8环境

1.下载jdk，放到/usr/local目录下

[root@server1 local]# cd /usr/local

[root@server1 local]#tar zxvf jdk-8u162-linux-x64.tar.gz

2.修改/etc/profile文件

export JAVA_HOME=/usr/share/jdk1.6.0_14

export PATH=$JAVA_HOME/bin:$PATH

export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar