Jdk 8 安装
jdk下载地址: https://www.oracle.com/java/technologies/javase-jdk8-downloads.html
或者:https://www.oracle.com/java/technologies/oracle-java-archive-downloads.html
这里提供百度云下载:链接: https://pan.baidu.com/s/1_fSe_nkdoZ_QhidbQyZ1ig 提取码: ttpw
准备环境
- centos7 虚拟机
手动安装
检查系统是否已经安装了jdk,有就卸载默认的jdk
rpm -qa | grep jdk
ava-1.6.0-openjdk-1.6.0.35-1.13.7.1.el6_6.x86_64
java-1.7.0-openjdk-1.7.0.79-2.5.5.4.el6.x86_64
[root@node1 ~]# rpm -e --nodeps java-1.6.0-openjdk-1.6.0.35-1.13.7.1.el6_6.x86_64
[root@node1 ~]# rpm -e --nodeps java-1.7.0-openjdk-1.7.0.79-2.5.5.4.el6.x86_64
下载安装jdk
wget https://download.oracle.com/otn/java/jdk/8u251-b08/3d5a2bb8f8d4428bbe94aed7ec7ae784/jdk-8u251-linux-x64.tar.gz
tar zxvf jdk-8u251-linux-x64.tar.gz -C /usr/local
# 配置环境变量
vi /etc/profile
export JAVA_HOME=/usr/local/jdk1.8.0_251
export PATH=$PATH:$JAVA_HOME/bin
# 保存退出
:wq
source /etc/profile
# 验证
java -version