Add a properties file to IntelliJ s classpath

Question

I m running a simple Java program from the IntelliJ IDE using the Run- Run menu  It works fine  Now I want to add log4j logging   I added a resources folder under my project root  I added a log4j properties file in that folder  I changed the code to log something   What is the right way to tell IntelliJ to include the resources folder in the classpath so the properties file is seen   With IntelliJ 8 I could guess like a drunk monkey and eventually get it to work  I have 9 now and I am wholly unsuccessful  I ve been trying for an hour  How about an  Add to classpath  option somewhere   fume  vent  rant

User · Answer

Actually  you have at least 2 ways to do it  the first way is described by ColinD  you just configure the  resources  folder as Sources folder in IDEA  If the Resource Patterns contains the extension of your resource  then it will be copied to the output directory when you Make the project and output directory is automatically a classpath of your application   Another common way is to add the  resources  folder to the classpath directly  Go to Project Structure   Modules   Your Module   Dependencies  click Add  Single-Entry Module Library  specify the path to the  resources  folder   Yet another solution would be to put the log4j properties file directly under the Source root of your project  in the default package directory   It s the same as the first way except you don t need to add another Source root in the Module Paths settings  the file will be copied to the output directory on Make   If you want to test with different log4j configurations  it may be easier to specify a custom configuration file directly in the Run Debug configuration  VM parameters filed like   -Dlog4j configuration file  c  log4j properties

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This is one of the dumb mistakes I ve done  I spent a lot of time trying to debug this problem and tried all the responses posted above  but in the end  it was one of my many dumb mistakes   I was using org apache logging log4j Logger   fml   whereas I should have used org apache log4j Logger  Using this correct logger saved my evening

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I had a similar problem with a log4j xml file for a unit test  did all of the above   But figured out it was because I was only re-running a failed test    if I re-run the entire test class the correct file is picked up   This is under Intelli-j 9 0 4

User · Answer

Faced a similar challenge adding files with  ini extensions to the classpath   Found this answer  which is to add it to Preferences -  Compiler -  Resource Patterns -           ini

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Perhaps this is a bit off-topic  seeing as the question has already been answered  but I have experienced a similar problem  In my case only some of the unit test resources were copied to the output folder upon compilation  My persistence xml in the META-INF folder got copied but nothing else   In the end I  solved  the problem by renaming the problematic files  rebuiling the project and then changing the file names back to the original ones  Do not ask me why this worked but it did  My best guess is that  somehow  my IntelliJ project had gotten a bit out of sync with the file system and the renaming operation triggered some kind of internal  resource rescan

User · Answer

I spent quite a lot of time figuring out how to do this in Intellij 13x  I apparently never added the properties files to the artifacts that required them  which is a separate step in Intellij  The setup below also works when you have a properties file that is shared by multiple modules    Go to your project setup  CTRL   ALT   SHIFT   S  In the list  select the module that you want to add one or more properties files to   On the right  select the Dependencies tab  Click the green plus and select  Jars or directories   Now select the folder that contains the property file s    I haven t tried including an individual file  Intellij will now ask you what the  category  of the selected file is  Choose  classes   even though they are not   Now you must add the properties files to the artifact  Intellij will give you the shortcut shown below  It will show errors in the red part at the bottom and a  red lightbulb  that when clicked shows you an option to add the files to the artifact  You can also go to the  artifacts  section and add the files to the artifacts manually

User · Answer

Try this    Go to Project Structure  Select your module  Find the folder in the tree on the right and select it  Click the Sources button above that tree  with the blue folder  to make that folder a sources folder

User · Answer

If you ever end up with the same problem with Scala and SBT     Go to Project Structure  The shortcut is  CTRL   ALT   SHIFT   S  On the far left list  choose Project Settings   Modules On the module list right of that  select the module of your project name  without the build  and choose the sources tab In middle  expand the folder that the root of your project for me that s  home  lt username gt  IdeaProjects  lt projectName gt  Look at the Content Root section on the right side  the red paths are directories that you haven t made  You ll want to put the properties file in a Resources directory  So I created src main resources and put log4j properties in it  I believe you can also modify the Content Root to put it wherever you want  I didn t do this   I ran my code with a SBT configuration and it found my log4j properties file

User · Answer

For those of you who migrate from Eclipse to IntelliJ or the other way around here is a tip when working with property files or other resource files   Its maddening  cost my a whole evening to find out  but both IDE s work quite different when it comes to looking for resource propertty files when you want to run locally from your IDE or during debugging   Packaging to a  jar is also quite different  but thats documented better    Suppose you have a relative path referral like this in your code   new FileInputStream  xxxx properties       which is convenient if you work with env specific  properties files which you don t want to package along with your JAR   INTELLIJ   I use 13 1   but could be valid for more versions   The file xxxx properties needs to be at the PARENT dir of the project ROOT in order to be picked up at runtime like this in IntelliJ   The project ROOT is where the  src folder resides in   ECLIPSE  Eclipse is just happy when the xxxx properties file is at the project ROOT itself   So IntelliJ expects  properties file to be 1 level higher then Eclipse when it is referenced like this     This also affects the way you have to execute your code when you have this same line of code   new FileInputStream  xxxx properties      in your exported  jar  When you want to be agile and don t want to package the  properties file with your jar you ll have to execute the jar like below in order to reference the  properties file correctly from the command line   INTELLIJ EXPORTED JAR  java -cp   path to properties file   path to jar some jar  com bla blabla ClassContainingMainMethod   ECLIPSE EXPORTED JAR  java -jar some jar   where the Eclipse exported executable jar will just expect the referenced  properties file to be on the same location as where the  jar file is

User · Answer

I have the same problem and it annoys me tremendously    I have always thought I was surposed to do as answer 2  That used to work in Intellij 9  now using 10    However I figured out that by adding these line to my maven pom file helps    lt build gt           lt resources gt       lt resource gt         lt directory gt src main resources lt  directory gt       lt  resource gt     lt  resources gt         lt  build gt

[java] Add a properties file to IntelliJ's classpath

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