centos6.5下安装JDK环境配置

•解压缩到  /OPC

•配置环境变量的配置文件vim  /etc/profile

JAVA_HOME=/opt/jdk1.7.0_79
PATH=/opt/jdk1.7.0_79/bin:$PATH
CLASSPATH=.:/opt/jdk1.7.0_79/lib/dt.jar:/opt/jdk1.7.0_79/lib/tools.jar
export  JAVA_HOME PATH CLASSPATH

最后执行 使之生效

 source /etc/profile