JAX-RS (Java API for RESTful Web Services) is a major innovative technology introduced by Java EE, providing developers with a simple and powerful way to build RESTful-style back-end services. In this article, we will introduce the use of JAX-RS in detail and provide corresponding source code examples.
REST (Representational State Transfer) is a software architecture style based on the HTTP protocol. It uses resources as unique identifiers on the Web and operates resources through HTTP methods (such as GET, POST, PUT, DELETE). JAX-RS provides a set of annotations and APIs that allow developers to easily create back-end services that comply with REST principles.
First, we need to add JAX-RS dependencies to the project. Assuming we use Maven to build the project, we can add the following dependencies in the project's pom.xml file:
<dependency>
<groupId>javax.ws.rs</groupId>