The main goal of the JAX-RS specification is to make the RESTful web service development easier than it has been in the past. As JAX-RS is a part of the Java EE platform, your code becomes portable across all Java EE-compliant servers. In this section, we will learn how to use the JAX-RS annotations for building RESTful web services.
To use JAX-RS APIs in your project, you need to add the javax.ws.rs-api JAR file to the class path. If the consuming project uses Maven for building the source, the dependency entry for the javax.ws.rs-api JAR file in the
Project Object Model (POM) file may look like the following:
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>javax.ws.rs-api</artifactId>
<version>2.0.1</version><!-- set the tight version -->
<scope>provided</scope><!-- compile time dependency -->
</dependency>