How to configure Jackson DeserializationConfig so that he would not put in the fields of the date object? Now the situation is this. Date comes to me via GET , and if any of the parameters is empty, then Jackson disrealizes it to the date, which is now.
I need that if the parameter with the date is not filled, then it was NULL.
You, probably, somewhere in the bin itself, the field is initialized. Or the old Jackson version.
public class Bean { public String name; public Date date; @Override public String toString() { return "Bean [name=" + name + ", date=" + date + "]"; } } String json0 = "{ \"name\": \"test\" }"; String json1 = "{ \"name\": \"test\", \"date\": \"\" }"; String json2 = "{ \"name\": \"test\", \"date\": \"null\" }"; String json3 = "{ \"name\": \"test\", \"date\": \"2016-06-11\" }"; ObjectMapper mapper = new ObjectMapper(); System.out.println(mapper.readValue(json0, Bean.class)); // Bean [name=test, date=null] System.out.println(mapper.readValue(json1, Bean.class)); // Bean [name=test, date=null] System.out.println(mapper.readValue(json2, Bean.class)); // Bean [name=test, date=null] System.out.println(mapper.readValue(json3, Bean.class)); // Bean [name=test, date=Sat Jun 11 00:00:00 TZ 2016] Source: https://ru.stackoverflow.com/questions/533646/
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