Linux 里配置jdk

1、首先下载jkd:  https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

2、解压到  /usr/local/jdk1.8/

3、在/etc/profile 里添加如下内容

export JAVA_HOME=/usr/local/jdk1.8/
export JRE_HOME=${JAVA_HOME}/jre 
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib 
export PATH=${JAVA_HOME}/bin:$PATH

4、刷新  source /etc/profile

 5、java -version 查看是否成功