1 環境相關
查看jdk 安裝路徑
[root@test43 shm]# which java
/usr/java/jdk1.7.0_76/bin/java
查看java版本java -version
java version "1.7.0_76"
Java(TM) SE Runtime Environment (build 1.7.0_76-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.76-b04, mixed mode)
查看環境變量配置
[root@test43 shm]# echo $PATH
/usr/java/jdk1.7.0_76/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/root/bin
[root@test43 shm]# echo $JAVA_HOME
/usr/java/jdk1.7.0_76
[root@test43 shm]#
安裝好的jdk ,然後 想配置環境變量vim /etc/profile
在最下面追加:
export JAVA_HOME=/usr/java/jdk1.7.0_76
export PATH=$JAVA_HOME/bin:$PATH:$HOME/bin
export CLASSPATH=$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib
jdk環境變量配置可參看:https://www.cnblogs.com/qmfsun/p/5591732.html