Jersey / Rest default character encoding

Question

Jersey seems to fail when returning JSON...
This:

@GET
@Produces( MediaType.APPLICATION_JSON + \";charset=UTF-8\")
public List getMyObje         


        

Answer 1

I had the same problem : i don't like adding the charset in the "@Produces" tag everywhere.

I found the solution right here : http://stephen.genoprime.com/2011/05/29/jersey-charset-in-content-type.html

Basically, you just have to add a response filter that will add the charset (for example if the content type currently returned is either text, xml or json)

import com.sun.jersey.spi.container.ContainerRequest;
import com.sun.jersey.spi.container.ContainerResponse;
import com.sun.jersey.spi.container.ContainerResponseFilter;

import javax.ws.rs.core.MediaType;

public class CharsetResponseFilter implements ContainerResponseFilter {

    public ContainerResponse filter(ContainerRequest request, ContainerResponse response) {

        MediaType contentType = response.getMediaType();
        response.getHttpHeaders().putSingle("Content-Type", contentType.toString() + ";charset=UTF-8");

        return response;
    }
}

And to register the filter :

ServletAdapter jerseyAdapter = new ServletAdapter();
jerseyAdapter.addInitParameter("com.sun.jersey.spi.container.ContainerResponseFilters", "com.my.package.MyResponseFilter"); 

Works too with Guice, of course, for example in your class extending ServletModule :

final Map parameters = new HashMap();
parameters.put("com.sun.jersey.spi.container.ContainerResponseFilters", com.package.JerseyCharsetResponseFilter.class.getName());
serve("/*").with(GuiceContainer.class, parameters);