Once you have setup Eclipse 4.9 or above with first run the task from the root of your project then import the project by selecting File → Import then choosing Gradle → Existing Gradle Project and navigating to the root directory of your project (where the is located).

Eclipse and Maven

Once installed you need to import the project by selecting File → Import then choosing Maven → Existing Maven Project and navigating to the root directory of your project (where the is located).