RESTful APIs have become an essential component of modern application development. They provide a flexible and scalable way to interact with services and data. In this blog post, we will explore how to build a RESTful API using JAX-RS and Jersey.

What is JAX-RS?

JAX-RS (Java API for RESTful Services) is a Java specification that defines how to create RESTful web services. It provides a set of annotations and interfaces that simplify the development of RESTful APIs in Java.

What is Jersey?

Jersey is a reference implementation of the JAX-RS specification. It provides a complete framework for building RESTful APIs in Java. Jersey includes features such as client and server-side components, support for various HTTP methods, and integration with other Java technologies.

To create a RESTful API with JAX-RS and Jersey, we will follow these steps:

1. Create a Maven project
2. Add JAX-RS and Jersey dependencies
3. Create a RESTful resource class
4. Deploy the API

**Step 1:

Create a new Maven project and add the following dependencies to the pom.xml file:

Step 2: Create a RESTful resource class

Create a Java class that represents a RESTful resource. Annotate the class with @Path to specify the base path for the resource. Use annotations like @GET, @POST, @PUT, and @DELETE to define HTTP methods that can be used to access the resource.

Here is an example of a RESTful resource class:

Step 3: Deploy the API

To deploy the API, create a web.xml file and add the following configuration:

XML

JAX-RS provides a standard way to create RESTful APIs in Java, while Jersey offers a complete framework for building and deploying RESTful APIs.