Linux基础学习-安装JDK

1.下载并上传JDK

         [root@localhost jdk]# tar -zxvf openjdk-8u41-b04-linux-x64-14_jan_2020.tar.gz

        [root@localhost jdk]# mkdir /usr/local/java

       [root@localhost jdk]# mv java-se-8u41-ri/ /usr/local/java

 

2.配置环境变量

      

      [root@localhost bin]# vi /etc/profile

 

     export JAVA_HOME=/usr/local/java/java-se-8u41-ri
     export PATH=$JAVA_HOME/bin:$PATH

 

 3.加载环境变量

 

      [root@localhost bin]# source /etc/profile
      [root@localhost bin]# echo $JAVA_HOME
      /usr/local/java/java-se-8u41-ri

4.查看

     

[root@localhost bin]# java -version
   openjdk version "1.8.0_41"
   OpenJDK Runtime Environment (build 1.8.0_41-b04)
    OpenJDK 64-Bit Server VM (build 25.40-b25, mixed mode)