some implementations of JAX RS API
It seems you’re asking about implementations or frameworks that provide support for the JAX-RS (Java API for RESTful Web Services) API. JAX-RS itself is a specification, and there are several implementations available that adhere to this specification, offering various features and capabilities for building RESTful web services in Java.

Table of Contents
Explanation
- 1. Â JAX-RS Implementations :
- JAX-RS is a Java EE specification that defines how RESTful web services should be implemented in Java.
- Implementations of JAX-RS provide the runtime environment and libraries necessary to develop and deploy RESTful services.
- 2. Â Features :
- Each JAX-RS implementation may offer additional features beyond the basic specification, such as support for dependency injection, security, and integration with other Java EE components.
Examples of JAX-RS Implementations
Here are some popular implementations of the JAX-RS API:
- 1. Â Jersey
- Jersey is the reference implementation of JAX-RS and is developed as part of the GlassFish project, which is now Eclipse GlassFish.
- It provides a rich set of features, excellent documentation, and seamless integration with other Java EE technologies.
Syntax
xml
<!-- Maven dependency for Jersey -->
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>2.35</version>
</dependency>
java
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
@ApplicationPath("/api")
public class MyApplication extends Application {
// No additional configuration needed
}
- 2. Â RESTEasy
- RESTEasy is another popular implementation of JAX-RS provided by JBoss (Red Hat).
- It offers robust features for developing RESTful web services and integrates well with JBoss Enterprise Application Platform (EAP).
Syntax
xml
<!-- Maven dependency for RESTEasy -->
<dependency>
<groupId>org.jboss.resteasy</groupId>
<artifactId>resteasy-jaxrs</artifactId>
<version>4.10.0.Final</version>
</dependency>
java
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
@ApplicationPath("/api")
public class MyApplication extends Application {
// No additional configuration needed
}
- 3. Â Apache CXF
- Apache CXF is a versatile framework that supports JAX-RS and JAX-WS, offering a unified approach to developing both RESTful and SOAP web services.
- It provides extensive features, including support for various protocols and data formats.
Syntax
xml
<!-- Maven dependency for Apache CXF JAX-RS -->
<dependency>
<groupId>org.apache.cxf</groupId>
<artifactId>cxf-rt-frontend-jaxrs</artifactId>
<version>3.4.6</version>
</dependency>
java
import javax.ws.rs.ApplicationPath;
import javax.ws.rs.core.Application;
@ApplicationPath("/api")
public class MyApplication extends Application {
// No additional configuration needed
}
Explanation
- Dependencies : Each implementation has its Maven dependencies that need to be included in your project to use their features.
- Configuration : The example shows a simple configuration of the ApplicationPath annotation to define the base URI path for your JAX-RS application.
These implementations provide the necessary runtime environments and libraries to build scalable and efficient RESTful web services in Java, adhering to the JAX-RS API specification.