centos安装jdk

在 oracle获取下载链接http://download.oracle.com/otn-pub/java/jdk/8u121-b13/e9e7ea248e2c4826b92b3f075a80e441/jdk-8u121-linux-x64.tar.gz

解压到/usr/cp/software/java/jdk8

添加到环境变量

vi /etc/profile 

在文件末尾添加

JAVA_HOME=/usr/cp/software/java/jdk1.8.0_45
JRE_HOME=/usr/cp/software/java/jdk1.8.0_45/jre
CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
PATH=$JAVA_HOME/bin:$PATH
export PATH JAVA_HOME CLASSPATH

让其生效 source /etc/profile

查看是否安装成功   java -version

 

 

转载于:https://my.oschina.net/chenping12/blog/838535