JDK安装

环境

系统：CentOS 6.8
软件：jdk-8u40-linux-x64.tar.gz

jdk安装

• 下载二进制包
  地址：http://www.oracle.com/technetwork/java/javase/downloads/index-jsp-138363.html

• 安装

  # tar -xzvf jdk-8u40-linux-x64.tar.gz
  # mv jdk1.8.0_40 /usr/local/jdk
  

• 配置环境变量

  # vim /etc/profile
  export JAVA_HOME=/usr/local/jdk
  export PATH=$JAVA_HOME/bin:$PATH
    
  # source /etc/profile
  

• 查看版本

  # java –version
  java version "1.8.0_40"
  Java(TM) SE Runtime Environment (build 1.8.0_40-b26)
  Java HotSpot(TM) 64-Bit Server VM (build 25.40-b25, mixed mode)