虚拟机linux下安装jdk（在线）

wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u131-linux-x64.rpm

find / -name jdk-8u131-linux-x64.rpm
chmod +x jdk-8u131-linux-x64.rpm
rpm -ivh jdk-8u131-linux-x64.rpm

#说明安装成功
java -version

 cd /usr/java
ll

#增加环境变量
vi /etc/profile

export JAVA_HOME=/usr/java/jdk1.8.0_131
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
javac
java -version
echo $PATH