ubuntu安裝jdk

一、下載jdk源碼版http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html

二、解壓到/usr/local/jdk

三、配置環境

vi /etc/profile

export JAVA_HOME=/usr/local/jdk

export JRE_HOME=${JAVA_HOME}/lib

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

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

四、測試是否配置成功java -version