Aug 11, 2016 · In this step-by-step example, the Eclipse Neon Java IDE and Apache Tomcat 9 web server are used to create, deploy and test a Java REST service using the Jersey JAX-RS API and Jackson Parser API.
The converter service of an application handles the conversion between representations (received by a resource for example) and beans or POJOs. It can be used either programmatically or transparently thanks to annotated Restlet resources. You must also either add an @Produces("application/json") annotation, or set the Content-Type header in your Response object to be "application/json". The following example illustrates simple JSON return methods for the BookList JAXB class:
Jackson JSON Streaming API Example. Jackson JSON Java API also provide streaming support that is helpful in working with large json data because it reads the whole file as tokens and uses less memory. The only problem with streaming API is that we need to take care of all the tokens while parsing the JSON data.