linux安装jdk

tar  -zxvf  jdk-8u91-linux-x64.tar.gz 

 

mkdir -p /usr/java

 

 mv jdk1.8.0_91/ /usr/java/

vim /etc/profile

export JAVA_HOME=/usr/java/jdk1.8.0_91
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib:$CLASSPATH
export JAVA_PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin
export PATH=$PATH:${JAVA_PATH}

source /etc/profile