Linux安装JDK

下载JDK

wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u144-b01/090f390dda5b47b9b721c7dfaa008135/jdk-8u144-linux-x64.tar.gz

解压

tar -zxvf jdk-8u144-linux-x64.tar.gz -C /usr/local/

JDK环境变量

export JAVA_HOME=/usr/local/jdk1.8.0_144export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport PATH=$JAVA_HOME/bin:$PATH编辑文件:vim/vi /etc/profile加载变量:source /etc/profile输入命令查看是否成功:java -version,java,javac