JAVA_HOME

    安装路径

    CLASSPATH

    1. .;%JAVA_HOME%\lib\dt.jar;%JAVA_HOME%\lib\tools.jar;

    PATH

    %JAVA_HOME%\bin;%JAVA_HOME%\jre\bin;

    需要注意：LINUX环境下，路径间隔符用的是 /

    sudo vim /etc/profile
export JAVA_HOME=/usr/local/share/jdk1.8.0_152
export PATH=$JAVA_HOME/bin:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
source /etc/profile