Java – jax-rs Jackson Jason provider date format problem

Wrt found the following problems:

Jersey + Jackson JSON date format serialization – how to change the format or use custom JacksonJsonProvider.

I want to know

>Does Jackson specify that the JSON date format should be normalized to a UNIX time integer?

Follow up questions

>Has his position changed recently? > Shouldn't the date format be standardized to the same format provided for JAXB XML output? > Why / why not? > Any effort to solve this problem? > Resteasy provides a JSON provider mitigation. Will it output JSON dates in a generally recognized date format?

Solution

Sorry for the yeller - I found the answer here

http://wiki.fasterxml.com/JacksonFAQDateHandling ,

here

http://wiki.fasterxml.com/JacksonFAQ#Serializing_Dates ,

here

http://wiki.fasterxml.com/JacksonHowToCustomSerializers

here

http://jackson.codehaus.org/1.1.2/javadoc/org/codehaus/jackson/map/util/StdDateFormat.html

Use @ jsonserialize (using =...):

public class JsonStdDateSerializer
extends JsonSerializer<Date> {
  private static final DateFormat iso8601Format =
    StdDateFormat.getBlueprintISO8601Format();

  @Override
  public void serialize(
    Date date,JsonGenerator jgen,SerializerProvider provider)
  throws IOException,JsonProcessingException {

    // clone because DateFormat is not thread-safe
    DateFormat myformat = (DateFormat) iso8601Format.clone();
    String formattedDate = myformat.format(date);
    jgen.writeString(formattedDate);
  }
}