How to use Jackson to deserialise an array of objects

简介: first create a mapper : import com.fasterxml.jackson.databind.ObjectMapper; ObjectMapper mapper = new ObjectMapper(); As Array: MyClass[] myObjects = mapper.

first create a mapper :

import com.fasterxml.jackson.databind.ObjectMapper; ObjectMapper mapper = new ObjectMapper();

As Array:

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

As List:

List<MyClass> myObjects = mapper.readValue(jsonInput, new com.fasterxml.jackson.core.type.TypeReference<List<MyClass>>(){});

Another way to specify the List type:

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