1、 Demo system version:
[ root@Centos ~]# cat /etc/redhat-release
CentOS release 6.6 (Final)
Preparation before installation:
- Download jdk7u79linuxx64.tar.gz
- Xftp upload to server
install
1) Unzip the jdk
tar -zxvf jdk7u79linuxx64.tar.gz
2) Configure environment variables
vi /etc/profile
Add the following to the end:
JAVA_HOME=/jdk1.7.0_79 JRE_HOME=/jdk1.7.0_79/jre CLASSPATH=.:$ JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib PATH=$JAVA_HOME/bin:$PATH export PATH JAVA_HOME CLASSPATH
wq！ preservation
implement source /etc/profile take effect
3) Validate java
java -version
echo $JAVA_HOME
echo $CLASSPATH
echo $PATH
