I have this json string:
{
"startDate" : "2014-12-17T14:31:40Z",
"name" : "Izek",
"age" : 12
}
When I convert it with Jackson to Map[String, Object] the type of startDate is String how I can tell Jackson to convert it to DateTime type?
You need to explicitly set the data format in the objectMapper. You could refer Date format Mapping to JSON Jackson for more details. Alternately, you could do it as http://java.dzone.com/articles/how-serialize-javautildate
Have you considered a custom map deserializer? You can try to parse the date in there. If not known in advance, you'll probably hit a performance hit here.
I found a way to do it.
define my own UntypedObjectDeserializer and extend std.UntypedObjectDeserializer in the deserialize method:
if (currentToken == JsonToken.VALUE_STRING) {
if (_stringDeserializer != null) {
return _stringDeserializer.deserialize(jp, ctxt)
}
String text = jp.getText();
if (dateTimeFormatRegex.match(text) {
return toDateTimeObject(text);
} else {
return text;
}
}
return super.deserialize(jp, ctxt)
public DateTime toDateTimeObject(String text) {
dateTimeFormatter.parseDateTime(text)
}