Detailed tutorial on installing JDK1.8 on Linux

1. Cleaning before installation

rpm -qa | grep jdk
rpm -qa | grep gcj
yum -y remove java-xxx-xxx

2. Download JDK online

Order:

wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u131-b11/d54c1d3a095b4ff2b6607d096fa80163/jdk-8u131-linux-x64.rpm

Download Reading Strip:

Check whether there is a JDK installation package in the current folder:

Add execute permissions:

Command: chmod +x jdk-8u131-linux-x64.rpm

Execute rpm to install

Command: rpm -ivh jdk-8u131-linux-x64.rpm

Check whether JDK is installed successfully

Command: java -version

Check the installation path of JDK (the default path is /usr/java/jdk1.8.0_131)

Configuring JDK environment variables

1. Edit environment variables

export JAVA_HOME=/usr/java/jdk1.8.0_131
 export JRE_HOME=${JAVA_HOME}/jre
 export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib:$CLASSPATH
 export JAVA_PATH=${JAVA_HOME}/bin:${JRE_HOME}/bin
 export PATH=$PATH:${JAVA_PATH}

2. Edit /etc/profile

Command: vim /etc/profile

3. Configure the environment

Command: i enters edit mode

Paste the edited

Enter the command: :wq!

Force save and exit

Let the profile take effect immediately:

source /etc/profile

Summarize

The above is a detailed tutorial on how to install JDK1.8 under Linux system introduced by the editor. I hope it will be helpful to everyone. If you have any questions, please leave me a message and the editor will reply to you in time. I would also like to thank everyone for their support of the 123WORDPRESS.COM website!