Debian8 安装 Java8 及 MySQL

【Java】
[1]vi /etc/apt/sources.list
[2]加入两行内容
deb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main
deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main
[3]sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EEA14886
[4]sudo apt-get update
[5]sudo apt-get install oracle-java8-installer
[6]配置环境变量
vi /root/.bashrc
加入内容并保存退出

export JAVA_HOME=/usr/lib/jvm/java-8-oracle/
export JRE_HOME=${JAVA_HOME}/jre    
export CLASSPATH=.:${JAVA_HOME}/db/lib:${JRE_HOME}/lib    
export PATH=${JAVA_HOME}/bin:$PATH  

source /root/.bashrc

【MySQL】
apt-get install mysql-server mysql-client

就是这么简单