LINUX安装JDK

1）下载JDK Java Downloads | Oracle

2）解压缩

        tar -xzvf jdk-8u151-linux-x64.tar.gz

3）配置/etc/profile

        vim /etc/profile

                export JAVA_HOME=/usr/local/jdk1.8.0_151
                export PATH=$JAVA_HOME/bin:$PATH
                export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar  

        source /etc/profile 

4）验证安装

        java -version