linux安装jdk

下载地址

http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

使用命令解压文件夹

 tar -zxvf jdk-8u311-linux-x64.tar.gz

删除压缩包

 rm -f jdk-8u311-linux-x64.tar.gz

jdk配置到/etc/profile

vim /etc/profile

在文本后面追加内容

export JAVA_HOME=/usr/local/jdk1.8.0_311

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