如何卸载linux自带openjdk并安装sun jdk

参见：https://www.jb51.net/article/112612.htm

检查一下系统中的jdk版本

[hadoop@master ~]$ java -version
openjdk version "1.8.0_222-ea"
OpenJDK Runtime Environment (build 1.8.0_222-ea-b03)
OpenJDK 64-Bit Server VM (build 25.222-b03, mixed mode)

检测jdk安装包

[hadoop@master ~]$ rpm -qa | grep java
python-javapackages-3.4.1-11.el7.noarch
javapackages-tools-3.4.1-11.el7.noarch
tzdata-java-2019b-1.el7.noarch
java-1.8.0-openjdk-headless-1.8.0.222.b03-1.el7.x86_64
java-1.8.0-openjdk-1.8.0.222.b03-1.el7.x86_64
[hadoop@master ~]$

卸载openjdk

[hadoop@master ~]$ sudo yum -y remove *openjdk*
[sudo] password for hadoop:
Loaded plugins: langpacks, ulninfo
Resolving Dependencies
--> Running transaction check
---> Package java-1.8.0-openjdk.x86_64 1:1.8.0.222.b03-1.el7 will be erased
--> Processing Dependency: java >= 1.5 for package: jline-1.0-8.el7.noarch
--> Processing Dependency: java-1.8.0-openjdk for package: icedtea-web-1.7.1-1.el7.x86_64
---> Package java-1.8.0-openjdk-headless.x86_64 1:1.8.0.222.b03-1.el7 will be erased
--> Running transaction check
---> Package icedtea-web.x86_64 0:1.7.1-1.el7 will be erased
---> Package jline.noarch 0:1.0-8.el7 will be erased
--> Processing Dependency: jline for package: rhino-1.7R5-1.el7.noarch
--> Running transaction check
---> Package rhino.noarch 0:1.7R5-1.el7 will be erased
--> Finished Dependency Resolution
ol7_UEKR5/x86_64                                         | 2.5 kB 00:00:00
ol7_latest/x86_64                                         | 2.7 kB 00:00:00 

Dependencies Resolved

==========================================================================================================================================================================================================
 Package             Arch         Version            Repository         Size
==========================================================================================================================================================================================================
Removing:
 java-1.8.0-openjdk           x86_64        1:1.8.0.222.b03-1.el7        @anaconda/7.7        642 k
 java-1.8.0-openjdk-headless        x86_64        1:1.8.0.222.b03-1.el7        @anaconda/7.7        106 M
Removing for dependencies:
 icedtea-web            x86_64        1.7.1-1.el7           @anaconda/7.7        2.3 M
 jline              noarch        1.0-8.el7           @anaconda/7.7         72 k
 rhino              noarch        1.7R5-1.el7           @anaconda/7.7        1.1 M

Transaction Summary
==========================================================================================================================================================================================================
Remove 2 Packages (+3 Dependent packages)

Installed size: 110 M
Downloading packages:
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
 Erasing : icedtea-web-1.7.1-1.el7.x86_64                                       1/5
 Erasing : rhino-1.7R5-1.el7.noarch                                        2/5
 Erasing : jline-1.0-8.el7.noarch                                         3/5
 Erasing : 1:java-1.8.0-openjdk-1.8.0.222.b03-1.el7.x86_64                                  4/5
 Erasing : 1:java-1.8.0-openjdk-headless-1.8.0.222.b03-1.el7.x86_64                                5/5
 Verifying : 1:java-1.8.0-openjdk-headless-1.8.0.222.b03-1.el7.x86_64                                1/5
 Verifying : 1:java-1.8.0-openjdk-1.8.0.222.b03-1.el7.x86_64                                  2/5
 Verifying : icedtea-web-1.7.1-1.el7.x86_64                                       3/5
 Verifying : rhino-1.7R5-1.el7.noarch                                        4/5
 Verifying : jline-1.0-8.el7.noarch                                         5/5

Removed:
 java-1.8.0-openjdk.x86_64 1:1.8.0.222.b03-1.el7             java-1.8.0-openjdk-headless.x86_64 1:1.8.0.222.b03-1.el7            

Dependency Removed:
 icedtea-web.x86_64 0:1.7.1-1.el7          jline.noarch 0:1.0-8.el7          rhino.noarch 0:1.7R5-1.el7          

Complete!

上传安装介质并解压

[hadoop@master ~]$ sudo tar -xzf jdk-8u191-linux-x64.tar.gz -C /usr/lib/jvm

设置环境变量,在/etc/profile最前面加上

export JAVA_HOME=/usr/lib/jvm/jdk1.8.0_191
export JRE_HOME=${JAVA_HOME}/jre
export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH

最后生效一下source /etc/profile

到此这篇关于如何卸载linux自带openjdk并安装sun jdk的文章就介绍到这了,更多相关卸载openjdk并安装sun jdk内容请搜索我们以前的文章或继续浏览下面的相关文章希望大家以后多多支持我们！