We all know what JSON-LD is: JSON with a @context field tacked on top, right? That’s pretty much all it is. Except sometimes you see an @id field, which, sure, that makes sense. And sometimes the @context field is multiple URLs, which seems odd — because how do they mix? Well, no worries.

Schema-org-java is a library for creating schema.org entities. The entities can be easily generated with the maven plugin, programmatically, or in command line.

In this tutorial, we’ll learn how to transform a Java Object to JSON-LD and vice versa. Also learn how to verify the schema of JSON-LD. JSON-LD is a JSON-based format which is used to represent structured data and linked data. Schema of JSON-LD can be found in documentation of schema.org.