Shulou(Shulou.com)06/02 Report--

This article mainly explains "the steps of building JDK environment". Friends who are interested may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn the steps of building a JDK environment.

Before installing Spark, we need to install jdk and scala on our system, as well as the download link for spark

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

Scala: http://www.scala-lang.org/download/

Install JDK

First, let's install jdk and create a jdk folder in the following directory:

Sudo mkdir / usr/lib/jdk

Use this statement to create the jdk installation directory, which we plan to install in the / usr/lib/jdk directory.

Then change to the directory where the jdk package is located. For example, here we put the package in the ~ / Desktop directory.

Cd ~ / Desktop

Execute the extract command to extract the package to the / usr/lib/jdk directory:

Sudo tar-zxvf jdk-8u151-linux-x64.tar.gz-C / usr/lib/jdk

Note that root permission is required here. Otherwise, there is no way to write data to the / usr/lib/jdk directory.

Then we need to configure the PATH path so that the jdk command can be executed directly under any path

Sudo vim / etc/profile

The changes to / etc/profile will have an effect on all users after restart, adding at the end of the configuration file:

Export JAVA_HOME=/usr/lib/jdk/jdk1.8.0_151

Export JRE_HOME=$ {JAVA_HOME} / jre export CLASSPATH=.:$ {JAVA_HOME} / lib:$ {JRE_HOME} / lib

Export PATH=$ {JAVA_HOME} / bin:$PATH

The path to JAVA_HOME is configured according to the directory you unzipped.

Then press esc to exit edit mode, enter command mode, type: W to save, and then: Q to exit vim editor

Source / etc/profile

At this point, I believe you have a deeper understanding of the "steps to build a JDK environment". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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