centos7安装JDK8

centos7安装JDK8

yum  -y  update

yum -y install net-tools

yum -y install vim*

yum search java|grep jdk

//yum -y install java-1.8.0-openjdk

yum -y  install java-1.8.0-openjdk-devel.x86_64

which java

ls -lrt /usr/bin/java

ls -lrt /etc/alternatives/java

vi /etc/profile

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.242.b08-0.el7_7.x86_64

export JRE_HOME=$JAVA_HOME/jre

export CLASSPATH=$JAVA_HOME/lib:$JRE_HOME/lib:$CLASSPATH

export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH

source /etc/profile