Ubuntu 16.04安装Java 8

待我称王封你为后i 2022-01-16 14:01 222阅读 0赞

[2019独角兽企业重金招聘Python工程师标准>>> ][2019_Python_] ![hot3.png][]

# [Ubuntu 16.04安装Java 8][Ubuntu 16.04_Java 8] #

1 Java 8 下载地址

https://www.oracle.com/technetwork/cn/java/javase/downloads/index.html

2 以root用户登录将下载的jdk-8u92-linux-x64.tar.gz文件放到/temp目录下，使用如下命令解压

tar zxvf jdk-8u211-linux-x64.tar.gz

3 将解压后的jdk1.8.0\_211复制到/opt下，命令如下：

![复制代码][copycode.gif]

root[@test][test]:~\# **mkdir /temp**  
root[@test][test]:~\# **cd /temp**  
root[@test][test]:/temp\# **tar zxvf jdk-8u211-linux-x64.tar.gz**  
root[@test][test]:/temp\# **cd /opt**  
root[@test][test]:/opt\# **mv /temp/jdk1.8.0\_211/ .**  
root@test:/opt\# ls -l  
总用量 4  
drwxr-xr-x 8 uucp 143 4096 4月 1 12:20 jdk1.8.0\_211

![复制代码][copycode.gif]

4 在/usr/bin目录下创建java软链接

root@test:/opt\# cd /usr/bin  
root@test:/bin\# ln -s /opt/jdk1.8.0\_211/bin/java java

验证软件接的正确性

root@test:/bin\# java -version  
java version "1.8.0\_211"  
Java(TM) SE Runtime Environment (build 1.8.0\_211-b14)  
Java HotSpot(TM) 64-Bit Server VM (build 25.211-b14, mixed mode)

5 设置Java环境

![复制代码][copycode.gif]

root@test:/usr/bin# vim /etc/profile
    export JAVA_HOME=/opt/jdk1.8.0_211
    export JRE_HOME=${JAVA_HOME}/jre
    export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
    export PATH=${JAVA_HOME}/bin:$PATH
    root@test:/bin# source /etc/profile
    root@test:/bin# echo $JAVA_HOME
    /opt/java1.8.0_211

![复制代码][copycode.gif]

6 切换到其它用户验证

![复制代码][copycode.gif]

ccskun@test:~$ echo $JAVA_HOME
    /opt/jdk1.8.0_211
    ccskun@test:~$ java -version
    java version "1.8.0_211"
    Java(TM) SE Runtime Environment (build 1.8.0_211-b14)
    Java HotSpot(TM) 64-Bit Server VM (build 25.211-b14, mixed mode)

转载于:https://my.oschina.net/u/2285247/blog/3045668

[2019_Python_]: https://my.oschina.net/u/2663968/blog/3061697
[hot3.png]: /images/20220114/7c24e7a013524912ab55c02c2f5dd6a2.png
[Ubuntu 16.04_Java 8]: https://www.cnblogs.com/ccskun/p/5534757.html
[copycode.gif]: /images/20220114/3d0bb5524432434f83b3f6d8c2d726a7.png
[test]: https://my.oschina.net/azibug