Embedded jetty with Jersey or resteasy

Question

I want make RESTful services using embedded jetty with JAX-RS (either resteasy or jersey). I am trying to create with maven/eclipse setup. if I try to follow http://wikis.sun.com/pages/viewpage.action?pageId=21725365 link I am not able to resolve error from ServletHolder sh = new ServletHolder(ServletContainer.class);

public class Main {

    @Path("/")
    public static class TestResource {

        @GET
        public String get() {
            return "GET";
        }
    }

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws Exception {
        ServletHolder sh = new ServletHolder(ServletContainer.class);

        /*
         * For 0.8 and later the "com.sun.ws.rest" namespace has been renamed to
         * "com.sun.jersey". For 0.7 or early use the commented out code instead
         */
        // sh.setInitParameter("com.sun.ws.rest.config.property.resourceConfigClass",
        // "com.sun.ws.rest.api.core.PackagesResourceConfig");
        // sh.setInitParameter("com.sun.ws.rest.config.property.packages",
        // "jetty");
        sh.setInitParameter("com.sun.jersey.config.property.resourceConfigClass",
            "com.sun.jersey.api.core.PackagesResourceConfig");
        sh.setInitParameter("com.sun.jersey.config.property.packages",
            "edu.mit.senseable.livesingapore.platform.restws");
        // sh.setInitParameter("com.sun.jersey.config.property.packages",
        // "jetty");
        Server server = new Server(9999);

        ServletContextHandler context = new ServletContextHandler(server, "/",
            ServletContextHandler.SESSIONS);
        context.addServlet(sh, "/*");
        server.start();
        server.join();
        // Client c = Client.create();
        // WebResource r = c.resource("http://localhost:9999/");
        // System.out.println(r.get(String.class));
        //
        // server.stop();
    }
}

even this is not working. can anyone suggest me something/tutorial/example ?

Answer 1

huh, linked page is ancient - last update 3 years ago.

Do you really need jetty? Jersey has excellent thoroughly tested integration with Grizzly (see http://grizzly.java.net) which is also acting as Glassfish transport layer and it is possible to use it as in your example.

See helloworld sample from Jersey workspace, com.sun.jersey.samples.helloworld.Main class starts Grizzly and "deploys" helloworld app: http://repo1.maven.org/maven2/com/sun/jersey/samples/helloworld/1.9.1/helloworld-1.9.1-project.zip .

If you really need jetty based sample, I guess I should be able to provide it (feel free to contact me).

EDIT:

ok, if you really want jetty, you can have it :) and looks like its fairly simple. I followed instructions from http://docs.codehaus.org/display/JETTY/Embedding+Jetty and was able to start helloworld sample:

public static void main(String[] args) throws Exception {
    Server server = new Server(8080);
    Context root = new Context(server,"/",Context.SESSIONS);
    root.addServlet(new ServletHolder(new ServletContainer(new PackagesResourceConfig("com.sun.jersey.samples.helloworld"))), "/");
    server.start();
}

http://localhost:8080/helloworld is accessible. I used Jetty 6.1.16. Hope it helps!

You can find more information about configuring Jersey in servlet environment in user guide, see http://jersey.java.net/nonav/documentation/latest/

EDIT:

dependencies.. but this is kind of hard to specify, it changed recently in jersey.. so..

pre 1.10:

<dependency>
    <groupId>org.mortbay.jetty</groupId>
    <artifactId>jetty</artifactId>
    <version>6.1.16</version>
</dependency>
<dependency>
     <groupId>com.sun.jersey</groupId>
     <artifactId>jersey-server</artifactId>
     <version>${jersey.version}</version>
</dependency>

post 1.10:

<dependency>
    <groupId>org.mortbay.jetty</groupId>
    <artifactId>jetty</artifactId>
    <version>6.1.16</version>
</dependency>
<dependency>
     <groupId>com.sun.jersey</groupId>
     <artifactId>jersey-servlet</artifactId>
     <version>${jersey.version}</version>
</dependency>

and you need this maven repo for jetty:

<repositories>
    <repository>
        <id>codehaus-release-repo</id>
        <name>Codehaus Release Repo</name>
        <url>http://repository.codehaus.org</url>
    </repository>
</repositories>