Jdk1.7安裝步驟(rpm)

4.0.1 清除系統自帶的jdk

查看：rpm -qa | grep jdk 卸載：yum remove xxx

4.0.2 賦予權限

chmod  777 jdk-7u80-linux-x64.rpm

4.0.3 執行安裝

rpm -ivh jdk-7u80-linux-x64.rpm

4.0.4配置環境變量(/etc/profile)

export JAVA_HOME=/usr/java/jdk1.7.0_80 export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar   調用source /etc/profile 檢查是否安裝成功