简述
本篇文章使用的Linux系统为Ubuntu 16.04,JDK为1.8.0_152。
JDK下载
JDK 1.8.0_152下载链接:https://pan.baidu.com/s/1AgiZ5DHnJjCVxBKPzdCddw
提取码:v1ud
Linux安装Java
- 在/usr/local/目录下创建文件夹,通过Xftp工具将下载好的JDK上传上去(若没有Xftp工具,可浏览另一篇文章https://blog.csdn.net/qq_36525300/article/details/89216023下载)
cd /usr/local
mkdir java
- 解压缩
tar -zxvf jdk-8u152-linux-x64.tar.gz
- 设置所有者
chown -R root:root /usr/local/java/
- 配置系统环境变量,添加路径配置
vi /etc/environment
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games: /usr/local/games"
export JAVA_HOME=/usr/local/java/jdk1.8.0_152
export JRE_HOME=/usr/local/java/jdk1.8.0_152/jre
export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
- 配置用户环境变量
vi /etc/profile
if [ "$PS1" ]; then
if [ "$BASH" ] && [ "$BASH" != "/bin/sh" ]; then
# The file bash.bashrc already sets the default PS1.
# PS1='\h:\w\$ '
if [ -f /etc/bash.bashrc ]; then
. /etc/bash.bashrc
fi
else
if [ "`id -u`" -eq 0 ]; then
PS1='# '
else
PS1='$ '
fi
fi
fi
export JAVA_HOME=/usr/local/java/jdk1.8.0_152
export JRE_HOME=/usr/local/java/jdk1.8.0_152/jre
export CLASSPATH=$CLASSPATH:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH:$HOME/bin
if [ -d /etc/profile.d ]; then
for i in /etc/profile.d/*.sh; do
if [ -r $i ]; then
. $i
fi
done
unset i
fi
- 使配置的环境变量生效
source /etc/profile
- 测试是否配置成功
root@Ubuntu:/usr/local/java# java -version
java version "1.8.0_152"
Java(TM) SE Runtime Environment (build 1.8.0_152-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.152-b16, mixed mode)