centos7安装配置java环境变量
作者:高景洋 日期:2021-05-12 22:44:54 浏览次数:2727
一、官方下载地址 https://www.oracle.com/java/technologies/javase/javase-jdk8-downloads.html
注意:需要注册后,方可下载
下载版本:Linux x64 Compressed Archive
二、安装过程
1、创建安装目录 mkdir /usr/local/java/
2、解压至安装目录 tar -zxvf jdk-8u291-linux-x64.tar.gz -C /usr/local/java/
3、环境变量设置
a、打开文件 vim /etc/profile
b、添加环境变量
export JAVA_HOME=/usr/local/java/jdk1.8.0_291
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
c、使环境变量生效 source /etc/profile
d、添加软链接 ln -s /usr/local/java/jdk1.8.0_291/bin/java /usr/bin/java
e、java -version
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