Jackson mapper: ignore certain properties when writing?

Question

I use JSON mapper to read an object from a string and then write the string from the object. I would like to be able to ignore some properties only when writing. What is the easiest way to accomplish this?

Answer here http://stackoverflow.com/questions/12505141/only-using-jsonignore-during-serialization-but-not-deserialization — eugen, Mar 20 '13 at 22:07
Thanks eugen! Putting the JsonIgnore property ONLY on the getter is exactly what I needed! — Trant, Mar 21 '13 at 16:10

score 2 · Answer 1 · answered Mar 20 '13 at 21:09

2

On the interface you can use the @JsonIgnoreProperties(ignoreUnknown=true) annotation to ignore any fields that have not been specified.

For example:

@JsonIgnoreProperties(ignoreUnknown=true)
public static interface Point {
    double getLatitude();

    double getLongitude();
}

This will ignore any other fields that are serialized using the Point interface.

answered Mar 20 '13 at 21:09

tdedecko

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This did not do the trick. When I read the json object and write it to string it includes "property : null" for everything not set – Trant Mar 21 '13 at 14:46

score 1 · Answer 2 · answered Apr 05 '18 at 23:12

You can use @JsonProperty(access = Access.WRITE_ONLY) to ignore a property for serialization.

You can fine more information about this property at the below link.

https://fasterxml.github.io/jackson-annotations/javadoc/2.8/com/fasterxml/jackson/annotation/JsonProperty.Access.html

Jackson mapper: ignore certain properties when writing?

2 Answers2