[root@jira ~]# cd /usr/local/src/
[root@jira src]# tar xf jdk-8u251-linux-x64.tar.gz -C /usr/local/
[root@jira src]# ln -s /usr/local/jdk1.8.0_251/ /usr/local/jdk
[root@jira src]# ln -s /usr/local/jdk/bin/java /usr/bin/java
# 追加以下三行内容至profile文件中
[root@jira src]# vi /etc/profile
export JAVA_HOME=/usr/local/jdk
export CLASSPATH=.:/lib/dt.jar:/lib/tools.jar
export PATH=/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin
[root@jira src]# source /etc/profile
# 可以看到版本号即安装成功
[root@jira src]# java -version
java version "1.8.0_251"
Java(TM) SE Runtime Environment (build 1.8.0_201-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.201-b09, mixed mode)

jdk-8u251-linux-x64.tar.gz下载地址

链接：https://pan.baidu.com/s/19RCSMp3HXNne0zcx4yuE1g 
提取码：jrg3