Combine Two Projects (JavaFX and Spring)

I am still learning the basics of java and have created two working projects, one that uses JavaFX to collect information from a user and another that sends simple emails using Spring. I have been trying to add JavaFX functionality to the Spring project or adding Spring functionality to the JavaFX project but to no avail (lots of errors!). 

How can I combine these two working projects to create one that works with both Spring and JavaFX?

(The simpler the explanation the better!)

TIA