http://oncodesign.io/2012/12/20/demystifying-apache-cxf-a-restful-hello-world-app

HelloWorldApp.java

package org.opensourcesoftwareandme;

import javax.ws.rs.core.Application;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

public class HelloWorldApp extends Application {

    public Set<Class<?>> getClasses() {
        Set<Class<?>> classes = new HashSet<Class<?>>();
        classes.add(HelloWorldImpl.class);

        return classes;
    }

}

HelloWorldImpl.java

package org.opensourcesoftwareandme;

import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;

@Path("/helloWorld")
public class HelloWorldImpl {

    @GET
    @Produces("text/html")
    @Path("sayHi/{text}")
    public String sayHi(@PathParam("text") String text) {
        return "Hello " + text;
    }
}

pom.xml

   ... 
   <dependencies>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-frontend-jaxrs</artifactId>
            <version>${cxf.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-transports-http-jetty</artifactId>
            <version>${cxf.version}</version>
        </dependency>
    </dependencies>
    ...

run.sh

mvn package; mvn exec:java -Dexec.mainClass="org.opensourcesoftwareandme.Server"

Server.java

package org.opensourcesoftwareandme;

import org.apache.cxf.jaxrs.JAXRSServerFactoryBean;

import javax.ws.rs.ext.RuntimeDelegate;

public class Server {

    public static void main(String args[]) throws Exception {
        JAXRSServerFactoryBean jaxrsServerFactory = RuntimeDelegate.getInstance().createEndpoint(new HelloWorldApp(), JAXRSServerFactoryBean.class);
        jaxrsServerFactory.setAddress("http://localhost:9000");
        org.apache.cxf.endpoint.Server server = jaxrsServerFactory.create();
        server.start();

        System.out.println("Server started...");
        Thread.sleep(5 * 60 * 1000);
        System.out.println("Server stopping...");
        server.stop();
        System.exit(0);
    }

}