Centos7.6JDK1.8 configuration

The file package can be downloaded from the network disk:

Link: https://pan.baidu.com/s/1bJcTaDhXLVrBYb_kNPyq3g?pwd=1024 
Extraction code: 1024

1. Upload the jdk file

mkdir -p /home/java

Upload the folder to /home/java/ 

Or upload the tar.gz file and decompress it with tar -zxvf

2. Configure JDK environment variables 

vi /etc/profile

 Add the following configuration

#注意这块改成上传包的路径    在配置文件最后面加即可
export JAVA_HOME=/home/java
export JRE_HOME=/home/java/jdk1.8.0_131
export CLASSPATH=$JRE_HOME/lib/rt.jar:$JRE_HOME/lib/ext
export PATH=$PATH:$JRE_HOME/bin

As shown in the picture:

 Use the command to make the environment variable take effect

source /etc/profile

3. Test whether the configuration is successful

java -version

As shown in the picture: