1.yum install jdk下载JDK或将下载好的安装文件传至/opt/software文件夹下
2.解压
tar -zxvf jdk-8u11-linux-x64.tar.gz -C /opt/module
3.修改/etc/profile,设置环境变量
export JAVA_HOME=/opt/module/jdk1.8.0_11
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.: J A V A H O M E / l i b : {JAVA_HOME}/lib: JAVAHOME/lib:{JRE_HOME}/lib
export PATH=
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:
{JAVA_HOME}/bin:
JAVAHOME/bin:PATH
刷新配置
source /etc/profile
验证
java -version
