Linux下安装JDK教程

1.下载安装包

下载jdk8

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

2.上传安装包并解压

cd /usr/local/java

rz

tar -zxvf  压缩文件名.tar.gz 

3.配置环境变量

vim /etc/profile

添加如下两行记录：

export JAVA_HOME=/usr/local/java/jdk1.8.0_231

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

4.配置生效，并测试

source /etc/profile

java -version