Category Archives: jersey

Use new version of Jackson JSON with Jersey

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Guice Module:

import com.fasterxml.jackson.jaxrs.json.JacksonJaxbJsonProvider;
import com.google.inject.Singleton;
import com.sun.jersey.guice.JerseyServletModule;
import com.sun.jersey.guice.spi.container.servlet.GuiceContainer;
 
public final class JerseyModule extends JerseyServletModule
{
   @Override
   protected void configureServlets()
   {
      bind(JacksonJaxbJsonProvider.class).in(Singleton.class);
      filter("/*").through(GuiceContainer.class);
   }
}

And the Maven pom:

<dependency>
   <groupId>com.fasterxml.jackson.jaxrs</groupId>
   <artifactId>jackson-jaxrs-json-provider</artifactId>
   <version>2.0.5</version>
</dependency>

Jersey + Guice ExceptionMapper

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import com.google.inject.Singleton;
 
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.Status;
import javax.ws.rs.ext.ExceptionMapper;
import javax.ws.rs.ext.Provider;
 
@Provider
@Singleton
public class MyExceptionMapper implements ExceptionMapper<MyException>
{
   @Override
   public Response toResponse(final MyException exception)
   {
      return Response.status(Status.NOT_FOUND).entity(exception.getMessage()).build();
   }
}
import com.google.inject.AbstractModule;
 
public class MyModule extends AbstractModule
{
   @Override
   protected void configure()
   {
      bind(MyExceptionMapper.class);
   }
}

Serving static content and Jersey

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If you want to serve static content from the same WAR as Jersey resources, it is possible to configure Jersey to run as a filter rather than a Servlet.

You can then define the property com.sun.jersey.config.property.WebPageContentRegex to exclude URLs matching the regular expression from being handled by Jersey. Instead request matching the pattern will fall through to the next filter and eventually the default Servlet, which can respond with your static content in the normal way.

   <filter>
      <filter-name>jerseyFilter</filter-name>
      <filter-class>com.sun.jersey.spi.spring.container.servlet.SpringServlet</filter-class>
      <init-param>
         <param-name>com.sun.jersey.config.property.WebPageContentRegex</param-name>
         <param-value>/static/.*</param-value>
      </init-param>
   </filter>
   <filter-mapping>
      <filter-name>jerseyFilter</filter-name>
      <url-pattern>/*</url-pattern>
   </filter-mapping>