ubuntu安裝JDK ant

下載解壓放到/usr/lib/jdk/jdk8中

sudo gedit /etc/profile

末尾添加

export JAVA_HOME=/usr/lib/jdk/jdk8

export JRE_HOME=/usr/lib/jdk/jdk8/jre

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

export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$JAVA_HOME:$PATH

export HADOOP_HOME=/usr/local/hadoop

export PATH=$PATH:$HADOOP_HOME/bin

配置系統默認jdk，300是一個優先級數值：

sudo update-alternatives --install /usr/bin/java java /usr/lib/jdk/jdk8/bin/java 300

sudo update-alternatives --install /usr/bin/javac javac /usr/lib/jdk/jdk8/bin/javac 300

sudo update-alternatives --config java 選擇安裝的jdk

sudo update-alternatives --config javac

ANT：

windows:

ANT_HOME:C:\ant

Path:%ANT_HOME%\bin

linux:

sudo apt-get install ant