Spring Web Interview Questions and Answers

•  What are REST services ?

REST (Representational State Transfer) is an architectural style for building web services that interact using standard HTTP methods (GET, POST, PUT, DELETE, etc.). It relies on stateless communication and uses resource-based URIs (Uniform Resource Identifiers) for addressing.

Jersey : Handle invalid json requests by overriding exception handling

In enterprise applications we usually encounter situations where we get invalid request for our RESTful webservice. The processing fails but client doesn't know the exact cause of problem. In the below article I explain how can we handle invalid request by overriding the exception handling of a Jersey based RESTful webservice.

Parse json into multiple java pojos using Jackson annotations

Jackson is a suite of data-processing tools for Java (and JVM platform), including the flagship streaming JSON parser / generator library, matching data-binding library (POJOs to and from JSON). In real world programming we will encounter complex cases of JSON to POJO conversion. Here, is one such case where we want to parse a single JSON into multiple java POJOs.