背景
yum安装很方便,实在是懒得一直拷贝安装包了。
安装方法
yum install java-1.8.0-openjdk.x86_64
查找jdk安装的位置
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[root@localhost]# which java
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/bin/java
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[root@localhost]# ls -l /bin/java
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lrwxrwxrwx. 1 root root 22 Mar 22 01:01 /bin/java -> /etc/alternatives/java
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[root@localhost]# ls -l /etc/alternatives/java
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lrwxrwxrwx. 1 root root 73 Mar 22 01:01 /etc/alternatives/java -> /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.242.b08-0.el7_7.x86_64/jre/bin/java
配置javahome
vi /etc/profile
最后一行加入
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export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.242.b08-0.el7_7.x86_64/jre
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export PATH=$PATH:$JAVA_HOME/bin
配置生效
source /etc/profile
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