Detailed Steps to Install JDK on Linux Server

First, environment

VMware12 Pro

CentOS-6.7-i386-bin-DVD1

jdk-8u151-linux-i586

Second, detailed installation steps

Prerequisite: need to uninstall JDK on your Linux

rpm-qa| grepjdk will display all the installation packages that contain the string jdk
rpm-e--nodeps corresponding to each package name will uninstall the corresponding package

after java -version shows

just uninstalled.

I have installed JDK before1.7I need to uninstall, if you haven't installed it, start from below

1go to the official website to download JDK

　http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

you need to select the small circle marked in red in the picture, then you can install it, which means you agree to the license agreement

because my virtual system is32bit, so I will32bit JDK, according to your situation, see specifically.86represents32bit system, x64represents64bit system.

Don't know the system bit of the server, use this command directly:

2. Upload and unzip JDK

Some people may not know what the rz command is, why don't you have it?

This is a simple upload and download tool. If you haven't installed it before, you can install it, it's very useful

Check whether lrzsz is installed before installation:

rpm –q l lrzsz

If not installed, you can use the following command to install:

yum install lrzsz –y

After that, you can use rz to upload local files to the current directory of the server, and sz followed by the specified file directory can download it to the local machine

Alright, after the JDK is uploaded, it looks like this:

Unzip, etc., it's a bit slow, so it's unzipped to the current directory:

3. Move the location

For easy management in the future, I moved the JDK directory to a different location and renamed it

Now let's go and see the JDK, ok, JDK1.8It already exists, that JDK1.7Don't worry, it's the one I installed before

The ls | grep jdk command is a pipeline command, which lists the files in the current directory and retrieves those that contain jdk

4. Configure environment variables

First use vim to open/etc/profile

Add it at the bottom of the file, save and exit

Run the following command to make the configuration take effect immediately

Now through java -version and javac -Check the version command, the two results are the same

OK, JDK configuration is complete!

Summary

The following is the detailed step-by-step guide to installing JDK on Linxu server introduced by the editor, hoping it will be helpful to everyone. If you have any questions, please leave a message, and the editor will reply to everyone in time. We are also very grateful for everyone's support for the Yelling Tutorial website!

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