Jersey RESTful web service gradle setup

Question

I am stuck with creating a gradle project for a RESTful web service using the jersey library. The project configuration should be capable of launching the service inside a jetty application server. I already found a resource: https://github.com/ziroby/jetty-gradle-hello-world

My problem with that solution is, that it uses an outdated version of jersey. I need at least version 2(preferred latest 2.14). I tried to search for new versions on maven central, but in version 2 a lot of artifact names changed, and I am not able to configure it correctly.

Edit: I do not specifically need a jetty server in my project. It can be any application server, which is suitable for testing and debugging my app. I am using jetty also in production, so it would be nice to use jetty.

EDIT: (by peeskillet) - Code from link

build

apply plugin: 'java' apply plugin: 'jetty'  repositories {     mavenCentral() } dependencies {     testCompile 'junit:junit:4.11'     testCompile 'org.hamcrest:hamcrest-all:1.3'     testCompile 'com.sun.jersey:jersey-client:1.17.1'     testCompile 'com.sun.jersey:jersey-core:1.17.1'     compile 'com.sun.jersey:jersey-core:1.17.1'     compile 'com.sun.jersey:jersey-server:1.17.1'     compile 'com.sun.jersey:jersey-servlet:1.17.1' } test {     exclude '**/*IntegrationTest*' }  task integrationTest(type: Test) {     include '**/*IntegrationTest*'     doFirst {         jettyRun.httpPort = 8080    // Port for test         jettyRun.daemon = true         jettyRun.execute()     }     doLast {         jettyStop.stopPort = 8091   // Port for stop signal         jettyStop.stopKey = 'stopKey'         jettyStop.execute()     } } 

Test

public class HelloIntegrationTest {     private static String HELLO_URL = "http://localhost:8080/hello";      @Test     public void testHello() throws Exception {         Client client = Client.create();         WebResource webResource = client.resource(HELLO_URL);         String response = webResource.get(String.class);          assertThat(response, is("Hello, World!"));     } } 

Resource

@Path("/hello") public class HelloWebapp {     private static HelloWorldService helloWorldService = new HelloWorldService();      @GET()     public String hello() {         return helloWorldService.sayHello();     } } 

web.xml

<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app>   <display-name>Jetty Gradle Hello World</display-name>   <servlet>     <servlet-name>HelloWorldServlet</servlet-name>     <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>     <init-param>       <param-name>com.sun.jersey.config.property.packages</param-name>       <param-value>com.ziroby.hello.webapp</param-value>     </init-param>     <!-- <init-param> -->     <!-- <param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name> -->     <!-- <param-value>true</param-value> -->     <!-- </init-param> -->     <load-on-startup>1</load-on-startup>   </servlet>   <servlet-mapping>     <servlet-name>HelloWorldServlet</servlet-name>     <url-pattern>/*</url-pattern>   </servlet-mapping> </web-app> 

Answer 1

First

Get rid of all the Jersey dependencies you currently have

dependencies {     testCompile 'junit:junit:4.11'     testCompile 'org.hamcrest:hamcrest-all:1.3'     +------------- ======= JUNK ======= ----------------+     | testCompile 'com.sun.jersey:jersey-client:1.17.1' |     | compile 'com.sun.jersey:jersey-core:1.17.1'       |     | compile 'com.sun.jersey:jersey-server:1.17.1'     |     | compile 'com.sun.jersey:jersey-servlet:1.17.1'    |     +---------------------------------------------------+ } 

Below is the only only one you need to get the basic functionality

dependencies {     testCompile 'junit:junit:4.11'     testCompile 'org.hamcrest:hamcrest-all:1.3'    +-------------------- ========= GOLDEN ======== -------------------------+    | compile 'org.glassfish.jersey.containers:jersey-container-servlet:2.14'|    +------------------------------------------------------------------------+    /* UPDATE */    /* Starting Jersey version 2.26, you will also need the following */    /* compile 'org.glassfish.jersey.inject:jersey-hk2:2.26' */ } 

Second

web.xml

<web-app>     <servlet>         <servlet-name>Jersey Web Application</servlet-name>         <servlet-class>                 org.glassfish.jersey.servlet.ServletContainer         </servlet-class>         <init-param>             <param-name>jersey.config.server.provider.packages</param-name>             <param-value>com.ziroby.hello.webapp</param-value>         </init-param>         <load-on-startup>1</load-on-startup>     </servlet>     <servlet-mapping>         <servlet-name>Jersey Web Application</servlet-name>         <url-pattern>/*</url-pattern>     </servlet-mapping> </web-app> 

Third

Test

import javax.ws.rs.client.Client; import javax.ws.rs.client.ClientBuilder; import javax.ws.rs.client.WebTarget; import static org.hamcrest.CoreMatchers.is; import static org.hamcrest.MatcherAssert.assertThat; import org.junit.Test;  public class HelloIntegrationTest {      private static String HELLO_URL = "http://localhost:8080/hello";      @Test     public void testHello() throws Exception {         Client client = ClientBuilder.newClient();         WebTarget webTarget = client.target(HELLO_URL);         String response = webTarget.request().get(String.class);         System.out.println(response);         assertThat(response, is("Hello, World!"));     } } 

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This has been tested with a clone of the linked project. Only changes are shown above.

Other Resources:

• What exactly is the ResourceConfig?
• More information on deployment options
• More information in the Client API

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Update

For JSON support use

org.glassfish.jersey.media:jersey-media-json-jackson:2.14 

No extra configuration is required for it to work.