下载 jdk1.7
地址: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
点击下载后会出现一个新的地址
例子:http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.tar.gz
其中wget后面的地址就是这个地址.
mkdir /usr/local/download
cd /usr/local/download
wget http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.tar.gz
解压 tar
mkdir /usr/local/application
tar xzvf jdk-7u80-linux-x64.tar.gz
mv jdk1.7.0_80 /usr/local/application/java7
环境变量配置
sudo vim /etc/profile
export JAVA_HOME=/usr/local/application/java7
export JRE_HOME=/usr/local/application/java7/jre
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib:$CLASSPATH
export PATH=$PATH:$JAVA_HOME/bin
环境变量重载
source /etc/profile
