系统相关
首页 > 系统相关> > Centos yum安装 jdk11

Centos yum安装 jdk11

作者:互联网

查看本机是否自带java

#rpm -qa|grep java

有则卸载(选做)

#rpm -e --nodeps java*

查看yum中jdk版本

#yum search jdk

列出java11

#yum list |grep java-11

安装必要的(-y表示安装过程中都默认yes)

#yum install -y java-11-openjdk.x86_64 
#yum install -y java-11-openjdk-devel.x86_64 
#yum install -y java-11-openjdk-headless.x86_64

查看是否安装成功

#rpm -qa | grep jdk 
    copy-jdk-configs-3.3-10.el7_5.noarch 
    java-11-openjdk-headless-11.0.13.0.8-1.el7_9.x86_64 
    java-11-openjdk-11.0.13.0.8-1.el7_9.x86_64 
    java-11-openjdk-devel-11.0.13.0.8-1.el7_9.x86_64

默认的安装目录是在/usr/lib/jvm/ ,若没有可以查到yum安装jdk的位置(选做)

#rpm -ql jdk java-11-openjdk-11.0.13.0.8-1.el7_9.x86_64 
    /usr/lib/jvm/java-11-openjdk-11.0.13.0.8-1.el7_9.x86_64

设置环境变量

#vi /etc/profile

加入以下配置

#set java environment
JAVA_HOME=/usr/lib/jvm/java-11-openjdk-11.0.13.0.8-1.el7_9.x86_64
JRE_HOME=$JAVA_HOME/jre
CLASS_PATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib
PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin
export JAVA_HOME JRE_HOME CLASS_PATH PATH

保存退出:esc :wq  回车

让修改生效

#source /etc/profile

验证jdk配置

#java -version
    openjdk version "11.0.13" 2021-10-19 LTS
    OpenJDK Runtime Environment 18.9 (build 11.0.13+8-LTS)
    OpenJDK 64-Bit Server VM 18.9 (build 11.0.13+8-LTS, mixed mode, sharing)
#javac -version
    javac 11.0.13
#cd $JAVA_HOME
    [root@abcd java-11-openjdk-11.0.13.0.8-1.el7_9.x86_64]# 

标签:11,java,Centos,openjdk,11.0,jdk11,64,HOME,yum
来源: https://blog.csdn.net/miaohancheng/article/details/121406298