What is the preferred method for returning null values in JSON? Is there a different preference for primitives? For example, if my object on the server has an Integer...
This question already has answers here: Jackson with JSON: Unrecognized field, not marked as ignorable (45 answers) Closed 3 years ago. I’m using Jackson JSON library to convert some...
How can Jackson be configured to ignore a field value during serialization if that field’s value is null. For example: public class SomeClass { // what jackson annotation causes...
I need to convert a certain JSON string to a Java object. I am using Jackson for JSON handling. I have no control over the input JSON (I read...
The Jackson data binding documentation indicates that Jackson supports deserialising “Arrays of all supported types” but I can’t figure out the exact syntax for this. For a single object...
When is the @JsonProperty property used and what is it used for?
Exactly how to do this depends on the version of Jackson that you’re using. This changed around version 1.9, before that, you could do this by adding @JsonIgnore to the getter. Which...
No need to go with GSON for this; Jackson can do either plain Maps/Lists: ObjectMapper mapper = new ObjectMapper(); Map<String,Object> map = mapper.readValue(json, Map.class); or more convenient JSON Tree:...
Eh… after hours of debugging and thinking – the answer turned out to be the most obvious one – both clients I have been using were closing the connection...
I need to convert a certain JSON string to a Java object. I am using Jackson for JSON handling. I have no control over the input JSON (I read...