Debian 7.x 安装Oracle JAVA

下载java8

下载地址：http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

卸载原先的openjdk

#apt-get autoremove openjdk*

上传jdk-8u111-linux-x64.tar.gz到服务器并解压

解压后： jdk1.8.0_111

 

创建jvm目录

#mkdir /usr/lib/jvm

#cp -ar /root/jdk1.8.0_111 ./

#mv jdk1.8.0_111 jdk8

 

配置环境

#vi /root/.bashrc

export JAVA_HOME=/usr/lib/jvm/jdk8

export JRE_HOME=${JAVA_HOME}/jre

export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib

export PATH=${JAVA_HOME}/bin:$PATH

 

#source ~/.bashrc

 

配置默认JDK

update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk8/bin/java 300

update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk8/bin/java 300

 

测试

#java -version