bash: java: command not found

[root@izm5eab8t820b79js38tbxz ~]# java -version
-bash: java: command not found

出現上面問題，解決方法：

[root@izm5eab8t820b79js38tbxz ~]# source /etc/profile

　　最后在測試是否安裝成功：

[root@izm5eab8t820b79js38tbxz ~]# java -version
java version "1.8.0_241"
Java(TM) SE Runtime Environment (build 1.8.0_241-b07)
Java HotSpot(TM) 64-Bit Server VM (build 25.241-b07, mixed mode)
[root@izm5eab8t820b79js38tbxz ~]#