[root@web01_Node1 /server/tools]#tar xf jdk-12.0.2_linux-x64_bin.tar.gz
[root@web01_Node1 /server/tools]#mv jdk-12.0.2 /application
[root@web01_Node1 /application]#cd jdk-12.0.2/
[root@web01_Node1 /application/jdk-12.0.2]#ls
bin conf include jmods legal lib man release
设置环境变量
[root@web01_Node1 /application/jdk-12.0.2]#vi ~/.bashrc
export JAVA_HOME=/application/jdk-12.0.2
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
#使环境变量生效
[root@web01_Node1 /application/jdk-12.0.2]#source ~/.bashrc
#查看版本
[root@web01_Node1 /application/jdk-12.0.2]#java -version
java version "12.0.2" 2019-07-16
Java(TM) SE Runtime Environment (build 12.0.2+10)
Java HotSpot(TM) 64-Bit Server VM (build 12.0.2+10, mixed mode, sharing)
