linux centos配java环境jdk1.8

wget --no-check-certificate --no-cookies --header "Cookie:oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u131-linux-x64.tar.gz

tar -zxvf jdk-8u131-linux-x64.tar.gz

 

官网jdk所有版本https://www.oracle.com/java/technologies/downloads/archive/

 (选择Java SE Development Kit)

1.下载jdk1.8，官网下载jdk-8u131-linux-x64.tar.gz  这种类型的文件  

2.创建目录usr/java/解压进来   (mv /opt/jdk1.8.0_131/  /usr/java/jdk1.8.0_131) 

3.配置环境变量。  vi  /etc/profile  下添加如下内容

 

export JAVA_HOME=/usr/java/jdk1.8.0_131

export PATH=$JAVA_HOME/bin:$PATH

export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tool.jar

4. source /etc/profile 刷新配置