Representational State Transfer (REST) is an architectural style in which web services are viewed as resources and can be identified by Uniform Resource Identifiers (URIs).
Web services developed using the REST style are known as RESTful web services. Java EE 6 adds support to RESTful web services through the addition of the Java API for RESTful Web Services (JAX-RS). JAX-RS has been available as a standalone API for a while, it became part of Java EE in version 6 of the specification.
One very common use of RESTful web services is to act as a frontend to a database, that is, RESTful web service clients can use a RESTful web service to perform CRUD (Create, Read, Update, Delete) operations in a database. ...
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