解析JSON以使用数组进行映射

Question

Here is a sample json:

{"LIST_OF_IDS_FOR_RETRANSFER":["50, 39, 29"]}

Now I'm trying to parse this json to map with no luck:

Map<String, List<Integer>> params = new ObjectMapper().readValue(jsonString, new TypeReference<Map<String, List<Integer>>>(){});

The result is the Map with one entry:

key: LIST_OF_IDS_FOR_RETRANSFER

value: List with size=1, value is '50, 39, 29'.

But I want to get List with size=3. Is it possible to achieve with Jackson?

Answer 1

由于您的类型引用是Map<String, List<Integer>> ，因此您的JSON应该如下所示： {"LIST_OF_IDS_FOR_RETRANSFER":[50, 39, 29]} （删除数字周围的“”）。