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！
