Correct way to add external jars (lib/*.jar) to an IntelliJ IDEA project

user_58394 0
Viewed 1216169

When creating a new Java project in IntelliJ IDEA, the following directories and files are created:

./projectname.iml
./projectname.ipr
./projectname.iws
./src/

I want to configure IntelliJ IDEA to include my dependency JARs in ./lib/*.jar to the project. What is the correct way to achieve this in IntelliJ IDEA?

intellij-idea java
12 Answers

dialogue in Intellij 20.3

Steps for adding external jars in IntelliJ IDEA:

  1. Click File from the toolbar
  2. Select Project Structure option (CTRL + SHIFT + ALT + S on Windows/Linux, āŒ˜ + ; on Mac OS X)
  3. Select Modules at the left panel
  4. Select Dependencies tab
  5. Select + icon
  6. Select 1 JARs or directories option
user_384660

You add them as libraries to your module.

I usually have a /lib directory in my source. I put all the JARs I need there, add /lib as a library, and make it part of my module dependencies.

2018 update: I'm using IntelliJ 2017/2018 now.

I'm fully committed to Maven and Nexus for dependency management.

This is the way the world has gone. Every open source Java project that I know of uses Maven or Gradle. You should, too.

user_372130
  1. File > Project Structure
  2. Project Settings > Modules > Dependencies (Select one of)
    • 1 JARs or Directories...
    • 2 Library...
    • 3 Module Dependency... enter image description here
  3. Apply + Ok

enter image description here

  1. Import into java class
user_67415030

You can put the JAR in the libs folder and add it from there. This can be done in 2 different ways in IntelliJ:

  1. Right-click on the libs folder and add from there:

enter image description here

  1. Add the JAR from the project structure:

enter image description here

user_27461100

If you are building your project with maven, you just need to add one line to the dependencies in the pom.xml:

<dependency>
     <groupId>com.xxx</groupId>
     <artifactId>xxxx-server</artifactId>
     <version>1.0.0</version>
     <scope>system</scope>
     <systemPath>${pom.basedir}/src/libs/xxx-server-1.0.0.jar</systemPath>
</dependency>

and then add the folder to your root project or module:

enter image description here

this is my personal experiences. I wish they would help you

user_103994670
Related