Centos服务器搭建（6）——安装JDK

1.下载jdk-7u51-linux-x64.tar.gz

拷贝解压到/opt

[[email protected] ~]# cp /home/temp/jdk-7u51-linux-x64.tar.gz /opt/

2.设置环境变量

export JAVA_HOME=/opt/jdk1.7.0_51
export JRE_HOME=$JAVA_HOME/jre
export PATH=$PATH:$JAVA_HOME/bin
export CLASSPATH=./:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar

export JAVA_HOME PATH CLASSPATH

3 测试是否成功

[[email protected] ~]# java -version
java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)