无法从 START_OBJECT 令牌反序列化 PaymentResponse[] 的实例

Question

无法使用 jackson objectmapper 读取响应。退出 START_OBJECT 令牌。这是输入的 json 和错误消息。PaymentResponse java pojo 是通用代码，我无权添加任何注释。添加反序列化配置有什么帮助吗？

ObjectMapper objectMapper = new ObjectMapper();

PaymentResponse[] paymentResponse  = objectMapper.readValue(serverResponseStr, PaymentResponse[].class);

{

    "PaymentResponse[]": [

        {

            "uid": "111",

            "name": "kiran"

        },

        {

            "uid": "112",

            "name": "kumar"

        }

    ]

}

Can not deserialize instance of PaymentResponse[] out of START_OBJECT token

com.fasterxml.jackson.databind.JsonMappingException: Can not deserialize instance of PaymentResponse[] out of START_OBJECT token

 at [Source: {"PaymentResponse[]": [{"uid": "111","name": "kiran"},{"uid": "112","name": "kumar"}]}

Answer 1

理想的情况是，如果您可以将响应更改为以下内容：[{&nbsp; &nbsp; &nbsp; &nbsp; "uid": "111",&nbsp; &nbsp; &nbsp; &nbsp; "name": "kiran"&nbsp; &nbsp; }, {&nbsp; &nbsp; &nbsp; &nbsp; "uid": "112",&nbsp; &nbsp; &nbsp; &nbsp; "name": "kumar"&nbsp; &nbsp; }]如果您无法更改它，请尝试以下操作：ObjectMapper objectMapper = new ObjectMapper();TypeFactory typeFactory = objectMapper.getTypeFactory();JsonNode array = objectMapper.readValue(anotherResponseStr, JsonNode.class);JsonNode paymentResponse = array.get("PaymentResponse[]");List<PaymentResponse> p = objectMapper.readValue(paymentResponse.toString(),&nbsp;typeFactory.constructCollectionType(List.class, PaymentResponse.class));