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POUsing JAXB to parse JSON in Jersey
 

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    <p>I'm trying to create a very simple RESTful web service using Jersey. I'm trying to make it so that it consumes and produces a JSON by using JAXB. The problem is that I get an error when I pass a JSON to it.</p> <p>Below is the resource code. Both status() and echo() are working properly. Please note that on processRequest() I'm currently producing a text response, but that will be changed later to produce a JSON.</p> <pre><code>package web_service; import javax.ws.rs.*; import javax.ws.rs.core.*; @Path("/") public class WebService { @GET @Produces(MediaType.TEXT_PLAIN) public String status() { return "Web service is up and running."; } @POST @Consumes(MediaType.TEXT_PLAIN) @Produces(MediaType.TEXT_PLAIN) public String echo(String consumed) { return consumed; } @POST @Consumes(MediaType.APPLICATION_JSON) @Produces(MediaType.TEXT_PLAIN) public String processRequest(JAXBElement&lt;Request&gt; r) { Request request = r.getValue(); return "Latitude: " + request.latitude + "\n:Longitude: " + request.longitude; } } </code></pre> <p>This is the Request model:</p> <pre><code>package web_service; import javax.xml.bind.annotation.XmlRootElement; @XmlRootElement public class Request { public String latitude; public String longitude; public Request() {} public Request(String latitude, String longitude) { this.latitude = latitude; this.longitude = longitude; } // Getters and setters for both } </code></pre> <p>My web.xml:</p> <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt; &lt;web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"&gt; &lt;servlet&gt; &lt;servlet-name&gt;Jersey REST Service&lt;/servlet-name&gt; &lt;servlet-class&gt;org.glassfish.jersey.servlet.ServletContainer&lt;/servlet-class&gt; &lt;init-param&gt; &lt;param-name&gt;jersey.config.server.provider.packages&lt;/param-name&gt; &lt;param-value&gt;web_service&lt;/param-value&gt; &lt;/init-param&gt; &lt;load-on-startup&gt;1&lt;/load-on-startup&gt; &lt;/servlet&gt; &lt;servlet-mapping&gt; &lt;servlet-name&gt;Jersey REST Service&lt;/servlet-name&gt; &lt;url-pattern&gt;/*&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; &lt;/web-app&gt; </code></pre> <p>Finally, this is an example of the POST that I'm doing (headers set to 'Content-Type: application/json');</p> <pre><code>{ "latitude":"25.764084501106787", "longitude":"-80.37422332275389" } </code></pre> <p>When I run this, Tomcat gives me the following Exception:</p> <pre><code>WARNING: WebApplicationException cause: org.glassfish.jersey.message.internal.MessageBodyProviderNotFoundException: MessageBodyReader not found for media type=application/json, type=class web_service.Request, genericType=class web_service.Request. </code></pre> <p>And I get the following response:</p> <pre><code>415 Unsupported Media Type Content-Length: 1 kB Content-Type: text/html;charset=utf-8 Date: 2013 Nov 4 17:41:20 Server: Apache-Coyote/1.1 </code></pre> <p><img src="https://i.stack.imgur.com/bZkGP.png" alt="enter image description here"></p> <p>I'm very new to this and this is not making a lot of sense. Hopefully, one of you will be able to give me a hand. Thanks!</p>
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