序列化反序列化

序列化：

对象转json 

ObjectMapper objectMapper = new ObjectMapper();
String jsonStr = objectMapper.writeValueAsString(dataDTO);

反序列化：

json转列表

ObjectMapper objectMapper = new ObjectMapper();
objectMapper.readValue(jsonStr, new TypeReference<List<FundStatsPeriodConfig>>() {});

json转对象

ObjectMapper objectMapper = new ObjectMapper();
DataDTO dataDTO = objectMapper.readValue(jsonStr, DataDTO.class);