How to use Jackson to deserialise an array of objects

Question

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.

Answer 1

First create a mapper :

import com.fasterxml.jackson.databind.ObjectMapper;// in play 2.3
ObjectMapper mapper = new ObjectMapper();

As Array:

MyClass[] myObjects = mapper.readValue(json, MyClass[].class);

As List:

List myObjects = mapper.readValue(jsonInput, new TypeReference>(){});

Another way to specify the List type:

List myObjects = mapper.readValue(jsonInput, mapper.getTypeFactory().constructCollectionType(List.class, MyClass.class));