Linux 安装 jdk

Linux 安装 jdk

[root@localhost ~]# mkdir /mnt/usb
[root@localhost ~]# mount /dev/sdb1 /mnt/usb

[root@localhost usb]# tar -zxvf /mnt/usb/jdk-7u80-linux-x64.tar.gz -C /usr/local/
[root@localhost usb]# cd /usr/local/
[root@localhost local]# mv jdk1.7.0_80/ java7

[root@localhost etc]# vi /etc/profile

#末尾处加上下面两行
export JAVA_HOME=/usr/local/java7
export PATH=$PATH:$JAVA_HOME/bin

[root@localhost etc]# source profile

[root@localhost etc]# java -version
java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)