二进制安装jdk8

一、上传或下载二进制包

[root@kafka ~]# ll
total 178968
-rw-------. 1 root root      1619 2022-05-26 23:24 anaconda-ks.cfg
-rw-r--r--  1 root root 183246769 2022-06-02 14:12 jdk-8u121-linux-x64.tar.gz

二、解压到目标目录

[root@kafka ~]# tar xf jdk-8u121-linux-x64.tar.gz  /usr/local

三、创建软连接

[root@kafka /usr/local]# ln -s jdk1.8.0_121/ jdk　　

四、配置环境变量并生效

[root@kafka ~]# vim /etc/profile
export JAVA_HOME=/usr/local/jdk
export  PATH=$PATH:$JAVA_HOME/bin

[root@kafka /usr/local]# source /etc/profile

五、查看结果

[root@kafka ~]# java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)