tar -xzvf jdk-8u151-Linux-x64.tar.gz -C /usr/local/src
sudo VIM /etc/profile
1. 编辑 / etc/profile
- # JAVA
- export JAVA_HOME=/usr/local/src/jdk1.8.0_151
- export JRE_HOME=$JAVA_HOME/jre
- export CLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
- export PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
2. 使环境变量即刻生效
$>source /etc/profile
3. 替换默认的 java
- $> rm -rf /etc/alternatives/java
- $> ln -s /usr/local/src/jdk1.8.0_151/bin/java /etc/alternatives/java
4. 进入任意目录下, 测试是否 ok
- $>cd ~
- $>java -version
来源: http://www.bubuko.com/infodetail-3096830.html