下方鏈接下載JDK

??JDK下載 - 編程寶庫 (codebaoku.com)??

(資料圖片僅供參考)

解壓到指定目錄

--javascripttypescriptbashsqljsonhtmlcssccppjavarubypythongorustmarkdown

mkdir -p /usr/lib/jdktar -zxvf jdk-8u341-linux-x64.tar.gz -C /usr/lib/jdkvim /etc/profile

添加到文件

JAVA_HOME=/usr/lib/jdk/jdk1.8.0_341

CLASSPATH=

PATH:$JAVA_HOME/bin

export PATH JAVA_HOME CLASSPATH

執(zhí)行profile 文件

source /etc/profile

java -version

卸載

檢測jdk安裝包

--javascripttypescriptbashsqljsonhtmlcssccppjavarubypythongorustmarkdown

rpm -qa | grep java顯示java-1.7.0-openjdk-1.7.0.111-2.6.7.8.el7.x86_64python-javapackages-3.4.1-11.el7.noarchtzdata-java-2016g-2.el7.noarchjavapackages-tools-3.4.1-11.el7.noarchjava-1.8.0-openjdk-1.8.0.102-4.b14.el7.x86_64java-1.8.0-openjdk-headless-1.8.0.102-4.b14.el7.x86_64java-1.7.0-openjdk-headless-1.7.0.111-2.6.7.8.el7.x86_64

卸載openjdk

--javascripttypescriptbashsqljsonhtmlcssccppjavarubypythongorustmarkdown

[root@localhost software]# rpm -e --nodeps tzdata-java-2016g-2.el7.noarch[root@localhost software]# rpm -e --nodeps java-1.7.0-openjdk-1.7.0.111-2.6.7.8.el7.x86_64[root@localhost software]# rpm -e --nodeps java-1.7.0-openjdk-headless-1.7.0.111-2.6.7.8.el7.x86_64[root@localhost software]# rpm -e --nodeps java-1.8.0-openjdk-1.8.0.102-4.b14.el7.x86_64[root@localhost software]# rpm -e --nodeps java-1.8.0-openjdk-headless-1.8.0.102-4.b14.el7.x86_64或者# yum remove *openjdk*之后再次輸入rpm -qa | grep java 查看卸載情況：[root@localhost software]# rpm -qa | grep javapython-javapackages-3.4.1-11.el7.noarchjavapackages-tools-3.4.1-11.el7.noarch