安装JDK

安装JDK

1. 下载JDK

   wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie"  http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u131-linux-x64.tar.gz
   

2. 解压

   tar -zxvf jdk-8u131-linux-x64.tar.gz
   

3. 配置环境变量

   vi /etc/profile
   添加
   export JAVA_HOME=/usr/local/jdk1.8
   export JRE_HOME=${JAVA_HOME}/jre
   export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib:$CLASSPATH
   export JAVA_PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin
   export PATH=$PATH:${JAVA_PATH}
   使profile生效
   source /etc/profie