I have a HasMap<
String Set<Postcode>>postCodeMap in the action class and I hope to convert it into String type, Any know how can I write Element_xxx in action-convertion-properties file?
I try Element_postCodeMap = java.util.Set and Element_postCodeMap = java.util.Map.Entry
and Element_postCodeMap = java.util.Set<com.Postcode>
but none of them can work.
public Postcode class{
String type//key of hashMap
String postcode;
getter and setter
}
thanks