Linux环境中jdk安装

1.把jdk安装包放入/opt/software/jdk目录下

2.解压压缩包 tar -zxvf jdk-8u141-linux-x64.tar.gz

3.配置环境变量 vim /etc/profile

export JAVA_HOME=/opt/software/jdk/jdk1.8.0_202
export CLASSPATH=$:CLASSPATH:$JAVA_HOME/lib/
export PATH=$PATH:$JAVA_HOME/bin

4.刷新配置 source /etc/profile ，让配置文件生效

5.java -version查看