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目录
一、官网下载jdk8
下载地址：http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html 点击前往下载
勾选：Accept License Agreement ；选择对应的Linux版本的压缩包：
二、xshell远程连接Linux服务器
xshell新建连接：
三、安装jdk8
（1）用rz命令将jdk上传到服务器，没有安装rz的话先执行 yum install lrzsz：
由普通用户身份进入root用户命令：su -验证是否安装可使用rz命令：rz安装rz命令：yum install lrzszxshell操作安装rz命令成功如下所示：
[putongyonghu@izwz9cl613w765osounpbhz ~]$ su -
Password:
Last login: Wed Aug 29 10:54:05 CST 2018 from 119.129.54.114 on pts/1
[root@izwz9cl613w765osounpbhz ~]# rz
-bash: rz: command not found
[root@izwz9cl613w765osounpbhz ~]# yum install -y lrzsz
Loaded plugins: fastestmirror
base | 3.6 kB 00:00:00
epel | 3.2 kB 00:00:00
extras | 3.4 kB 00:00:00
updates | 3.4 kB 00:00:00
(1/7): base/7/x86_64/group_gz | 166 kB 00:00:00
(2/7): epel/x86_64/updateinfo | 938 kB 00:00:00
(3/7): epel/x86_64/group_gz | 88 kB 00:00:00
(4/7): epel/x86_64/primary | 3.6 MB 00:00:00
(5/7): extras/7/x86_64/primary_db | 186 kB 00:00:00
(6/7): base/7/x86_64/primary_db | 5.9 MB 00:00:00
(7/7): updates/7/x86_64/primary_db | 5.2 MB 00:00:00
Determining fastest mirrors
epel 12661/12661
Resolving Dependencies
--> Running transaction check
---> Package lrzsz.x86_64 0:0.12.20-36.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
===========================================================================================================
Package Arch Version Repository Size
===========================================================================================================
Installing:
lrzsz x86_64 0.12.20-36.el7 base 78 k
Transaction Summary
===========================================================================================================
Install 1 Package
Total download size: 78 k
Installed size: 181 k
Downloading packages:
lrzsz-0.12.20-36.el7.x86_64.rpm | 78 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : lrzsz-0.12.20-36.el7.x86_64 1/1
Verifying : lrzsz-0.12.20-36.el7.x86_64 1/1
Installed:
lrzsz.x86_64 0:0.12.20-36.el7
Complete!
[root@izwz9cl613w765osounpbhz ~]#
（2）用rz命令将jdk上传到服务器：
（3）输入解压jdk命令：
sudo tar -vxf jdk-8u181-linux-x64.tar.gz -C/usr/local
（4）配置jdk环境变量，输入命令：
sudo vim /etc/profile
修改配置：
export JAVA_HOME=/usr/local/jdk1.8.0_181
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH
（5）生效配置并验证是否安装jdk成功：
source /etc/profilejava -version