android - Gson 不会从 GSON 插件转换自动生成的类

Question

我有以下 .json 文件 -

   {
      "IDs":[
         "1716136233",
         "2030187302",
         "2048978077",
         "2366739744",
         "2893154331",
         "2933460506",
         "3103364330",
         "3156078714",
         "3246372427",
         "3917238269",
         "4120130712",
         "4219976332",
         "4291368197",
         "7157045144",
         "97qIzbJhgPVeyPtMFIpbvtBjdz72",
         "AhfGRayljDMx2G3UbEnxCFSjzV03",
         "hEej5AN4DpYXR0kOklIAs9sUxwX2",
         "5805506365",
         "12915030523",
         "AAcKGIJUYEYm9bzEmKfXSDK17Xf2",
         "xVCKjchpAzXNbd4NNrEJgN50Ap42",
         "E47aII272cVDI9m3fsT45V3XdP03",
         "yqvCupYxHUVWVK2jmkAVvPcAXvr1",
         "uFWidwQk0INUVdjXDSFZNjjHGrm2",
         "1eHERZ2WiJTNTPF7y6RVDZFf65n1",
         "Z4BzSFk5OpQK0VxPThyIfksOESv1",
         "pNfP2xUCxbfslMTQeSU6Ifxr1rV2",
         "ka2GdJ2cmRYHRgp8xyDqDRkZ9ys1",
         "cAWsikLAj3XMsIaSpHzjc0ixlFV2",
         "MzILthuDV9aWlvxqAAByMzfTUqK2",
         "6617291130",
         "RTzEt5DpBPTmQqzgOXXq2IGvoKL2",
         "nz9py8DslHNbLgduvxCfLVOLoMg1",
         "1Fici0ZStbXAccLKs5dh72xI0ZV2",
         "13694871353",
         "pyOB3Bhy4AaZ5GPUW4WLLmyD1Jd2",
         "NvcjLcHwfCTjTbjVOjfafukPNp32",
         "TSiTVkNY7qcFY9QxZ7r4CzKckLn1",
         "4329923139",
         "FgytkHqf0GddRqTyoguTh0aoxyG2",
         "2uXKy54kvyY1cvCD9ut5CvzyCGY2",
         "W4C3ueCQ0QYKNO8UDys4gt0RmNW2",
         "ixU5ro9ZeldRVy0Q5vTJ5HSGHyB2",
         "7308184033",
         "Mnox4kviNhPWiZwQU3U3oi39DTf2",
         "gxUIfqN9AFe5GY7Aj42pdlsbAk62",
         "wuWZdHyqzBUOElbv6c5Pp4GGwwE2",
         "1IwatVMcZKW30u9Ec6ofujhfqDQ2",
         "Or014Dw6gTPTisolKfTsb0pxblh2",
         "lbKFCsNTaKPFqkXG0gbogw6U5IQ2",
         "DqbG3g4DdlQbhbzIZoWlyFkqsJF3",
         "CEOMlUdMm2Q0FrqHlUBcWosLJt43",
         "bPmSONjHNBcUIDgrPZZzrsOcP7N2",
         "pp6ejp11AferP1zWbnKRcUXYqPm1",
         "En4oViJj0keGl9SoKzCW4FRi8zc2",
         "LwlmJ1wBXGdzBFmed7Np9AFQTkh1",
         "TcqhUChpfGSgVGg4jGoEcbXMUwP2",
         "4552B86LWQPCtekybJBd97dOP033",
         "WV5PytXFFBgQzVnE3Ar9TjFzbuj2",
         "Fh7ahcUJatNs0KLyUaOA7KYPekt1",
         "DHmEB44BDrRl706AqmmYBUORWwB3",
         "TKmfA6DfiZXApsCtVcu6LMIFZ7A3",
         "yLT1HUat2ZPC4UfqGOI4edRjjgw1",
         "DC3qrMXZa0Rs66WfyA3RCJIJqlo1",
         "sznynbcWiMbVwADCfhvluRfyyX12",
         "uWccGs4mkrRtuxsPt5D9Rmvhlzo2",
         "kD6If8EeS2flhCBNAkJaN9QfSNr2",
      ]
   }

我使用适用于 android studio 的 GsonFormatter 插件创建了以下类，粘贴了以下 .json 代码 -

public class ID {


  private List<String> IDs;

  public List<String> getIDs() {
    return IDs;
  }

  public void setIDs(List<String> IDs) {
    this.IDs = IDs;
  }
}

但出于某种原因，当尝试使用 Gson 方法 fromJson(response, ID.class) 时，我得到的是 null 而不是为我自动生成的类型 -

Gson gson = new Gson();
    ID id = gson.fromJson(response, ID.class);
    Log.d("id - ", id.toString());

它打印到日志“id - null”

为什么？

Answer 1

试试下面的代码，把它翻译成java:

   data class Data(@SerializedName("IDs") val iDs: List<String>) {

        companion object {
            fun fromJson(json: String): Data {
                val data = Gson().fromJson(json, Data::class.java)

                return data
            }
        }

    }

使用:

val data = Data.fromJson(jsonString)