A, IDEA installation
Download the Community version of the IDEA, Ultimate is a free trial version (equivalent to use later to give money)
ideaIC-2019.2.3.tar.gz
Decompression IDEA:
takes -zxvf ideaIC-2019.2.3.tar.gz
View catalog:
[hadoop@hadoop01 idea-IC-192.6817.14]$ ls -ll
total 52
drwxrwxr-x. 2 hadoop hadoop 4096 Oct 2 22:08 bin
-rw-r--r--. 1 hadoop hadoop 14 Sep 24 12:43 build.txt
-rw-r--r--. 1 hadoop hadoop 1914 Sep 24 12:43 Install-Linux-tar.txt
drwxrwxr-x. 7 hadoop hadoop 83 Oct 2 22:08 jbr
drwxrwxr-x. 4 hadoop hadoop 8192 Oct 2 22:08 lib
drwxrwxr-x. 2 hadoop hadoop 4096 Oct 2 22:08 license
-rw-r--r--. 1 hadoop hadoop 11352 Sep 24 12:43 LICENSE.txt
-rw-r--r--. 1 hadoop hadoop 128 Sep 24 12:43 NOTICE.txt
drwxrwxr-x. 43 hadoop hadoop 4096 Oct 2 22:08 plugins
-rw-r--r--. 1 hadoop hadoop 370 Sep 24 12:46 product-info.json
drwxrwxr-x. 2 hadoop hadoop 35 Oct 2 22:08 redist
Start iedea:
[hadoop@hadoop01 bin]$ ./idea.sh
OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
Startup Error: Unable to detect graphics environment
报错：Unable to detect graphics environment
Workaround: Do not perform this command by remote start way out, to open the terminal in linux graphical interface to execute this command
Executed in linux terminal command to start idia:
[hadoop@hadoop01 ~]$ cd idea-IC-192.6817.14
[hadoop@hadoop01 idea-IC-192.6817.14]$ bin/idea.sh
OpenJDK 64-Bit Server VM warning: Option UseConcMarkSweepGC was deprecated in version 9.0 and will likely be removed in a future release.
Download and install the plug-scala
The scala-intellij-bin-2019.2.3.zip on the scala plugins folder in your home directory
Note: scala plug-in version must correspond with the idea, as I have is: scala-intellij-bin-2019.2.3.zip correspond ideaIC-2019.2.3.tar.gz
To find setting inside the plugins, select install plugin from disk to start the idea of ...
Select the plug-in package
Finally restart the idea, you can.
Two, IDEA test
Create a new project scala
Note: Select the IDEA is to create a common Scala project (Note: Different versions of the IJ IDEA, IDEA here may appear as Scala, but this did not affect anything)
Basic engineering settings page:
among them:
project name: project name
project location: the project file Address
jdk: java version version used when not found, choose the installation directory of jdk
scala SDK: Use scala version is not found, the installation directory of their choice of scala
After clicking finish, into the design of the main page
This time, the first time the system will set the index.
It should be noted, IDEA will take time for new projects index, depending on the length of the virtual machine configuration and set
In the right-src at the new-package, ready to create a package scala
Package name ：com.hadoop
Configuration engineering structure (project structure), in order to introduce spark dependencies
Select the main interface file-- project structure, in the pop-up dialog box, select librarie - + - java, select the virtual machine in all the jar packages under the jars directory has been installed at the spark
After clicking OK, the system will be indexed again
Creating scala class
On the right bag com.hadoop new - scala class, following interface pops
Enter sparkPi, and select the object
