CentOS 7安装与配置JDK8

1.检查是否安装过JDK

2.下载安装包并上传服务器

3.安装JDK

rpm -ivh jdk-8u131-linux-x64.rpm

4.查看是否安装正常

java -version

5.配置环境变量

5.1 vim /etc/profile

JAVA_HOME=/usr/java/jdk1.8.0_131
JRE_HOME=/usr/java/jdk1.8.0_131/jre
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
export JAVA_HOME JRE_HOME PATH CLASSPATH

5.2 source /etc/profile

5.3 echo $PATH

转载于:https://www.cnblogs.com/taohaijun/p/7153176.html