Configure URL-based negotiation
You configure this using the resteasy.media.type.mappings and resteasy.language.mappings context-param variables within your web.xml Archetype Created Web Application resteasy.media.type.mappings html : text/html, json : application/json, xml : application/xml resteasy.language.mappings en : en-US, es : es, fr : fr Resteasy org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher Resteasy /* Mappings are a comma delimited list of suffix/mediatype or suffix/language mappings. Each mapping is delimited by a ':'.