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POHow to produce JSON output with Jersey 1.6 using JAXB
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  1. POHow to produce JSON output with Jersey 1.6 using JAXB
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    copied!<pre><code>@XmlRootElement public class Todo { private String s = "test"; public String getS() { return s; } public void setS(String s) { this.s = s; } } </code></pre> <p>and service: </p> <pre><code>@Path("/test") public class Service { @GET @Produces({MediaType.APPLICATION_JSON }) public List&lt;Todo&gt; getAllGadgets() { return Arrays.asList(new Todo[] { new Todo() }); } } </code></pre> <p>my web.xml: </p> <pre><code>&lt;servlet&gt; &lt;servlet-name&gt;Jersey REST Service&lt;/servlet-name&gt; &lt;servlet-class&gt;com.sun.jersey.spi.container.servlet.ServletContainer&lt;/servlet-class&gt; &lt;init-param&gt; &lt;param-name&gt;com.sun.jersey.config.property.packages&lt;/param-name&gt; &lt;param-value&gt;com.test&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;/rest/*&lt;/url-pattern&gt; &lt;/servlet-mapping&gt; </code></pre> <p>All this work if I set MediaType.APPLICATION_XML for Produces annotation. But for JSON I get the following exception: </p> <blockquote> <p>SEVERE: Mapped exception to response: 500 (Internal Server Error) javax.ws.rs.WebApplicationException: com.sun.jersey.api.MessageException: A message body writer for Java class java.util.Arrays$ArrayList, and Java type java.util.List, and MIME media type application/json was not found</p> </blockquote> <p>I use Jersey 1.6 and, according to the tutorial, JSON format should work with JAXB without any additional programming. What's wrong? </p>
 

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