@XmlRootElement
public class Todo {
private String s = "test";
public String getS() {
return s;
}
public void setS(String s) {
this.s = s;
}
}
and service:
@Path("/test")
public class Service {
@GET
@Produces({MediaType.APPLICATION_JSON })
public List<Todo> getAllGadgets() {
return Arrays.asList(new Todo[] { new Todo() });
}
}
my web.xml:
<servlet>
<servlet-name>Jersey REST Service</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.test</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
All this work if I set MediaType.APPLICATION_XML for Produces annotation. But for JSON I get the following exception:
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
I use Jersey 1.6 and, according to the tutorial, JSON format should work with JAXB without any additional programming. What's wrong?
I solved this. All I needed to do was to add jersey-json-1.6.jar library to the project (this is not required part of jersey)