1. Win7 环境配置
JAVA_HOME C:\Program Files\Java\jdk1.8.0_162
CLASSPATH .;%JAVA_HOME%\lib;%JAVA_HOME%\lib\tools.jar;%JAVA_HOME%\lib\dt.jar
Path ;%JAVA_HOME%\bin;%JAVA_HOME%\jre\bin
2. Centos7 环境配置
vi /etc/profile
export JAVA_HOME=/usr/local/jdk1.8.0_151
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=$PATH:$JAVA_HOME/bin
source /etc/profile