How to tell Jackson to ignore a field during serialization if its value is null?
jackson, java
Solution
To suppress serializing properties with null values using Jackson >2.0, you can configure the `ObjectMapper` directly, or make use of the `@JsonInclude` annotation:
mapper.setSerializationInclusion(Include.NON_NULL);
or:
@JsonInclude(Include.NON_NULL)
class Foo
{
String bar;
}
Alternatively, you could use `@JsonInclude` in a getter so that the attribute would be shown if the value is not null.
A more complete example is available in my answer to How to prevent null values inside a Map and null fields inside a bean from getting serialized through Jackson.
Problem
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 jackson to skip over this value if it is null but will // serialize it otherwise private String someValue; } ```