在Centos7上安装JDK8

1.安装jdk8

yum install java-1.8.0-openjdk

2.检查jdk是否成功

java -version

3.设置java path

vim .bash_profile

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0.282.b08-1.el7_9.x86_64/jre/bin/java

source .bash_profile

echo $JAVA_HOME