Linux下安装JDK1.7
本文基于CentOS 64位
从官网下载http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html
或者
curl -O http://download.Oracle.com/otn-pub/java/jdk/7u79-b15/jdk-7u79-linux-x64.tar.gz
2.将jdk-7u79-linux-x64.tar.gz拷贝到/usr/lib/jvm/目录下面,这里如果没有jdk文件夹,则创建该文件夹,命令:
sudo mkdir jvm //创建文件夹jdk
sudo tar xvf jdk-7u79-linux-x64.tar.gz //解压缩文件
3.设置环境变量,用nano打开/etc/profile文件
sudo nano /etc/profile
在文件的最后面增加:
export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_45
export JRE_HOME=/usr/lib/jvm/jdk1.7.0_45/jre
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre/bin:$PATH
export CLASSPATH=$CLASSPATH:.:$JAVA_HOME/lib:$JAVA_HOME/jre/lib
4.检测,输入java -version
java version "1.7.0_79"
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.79-b25, mixed mode)