Java HttpMessageNodeTableException:无法读取JSON:无法分析日期值'；I'；

下面是代码、json文件和我在执行代码时得到的异常

//代码

private class HttpRequestTask extends AsyncTask<Void, Void, ShiftPlannerModel[]> {
            @Override
            protected ShiftPlannerModel[] doInBackground(Void... params) {
                try {
                    RestTemplate restTemplate = new RestTemplate();
                    restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
                    ResponseEntity<ShiftPlannerModel[]> greeting = restTemplate.getForEntity(URL, ShiftPlannerModel[].class);
                    Log.i(greeting.getBody().toString(), "doInBackground: ");
                    return greeting.getBody();
                } catch (Exception e) {
                    Log.e("doInBackgrouExcp", e.getMessage(), e);
                }

//读取上述JSON格式时发生异常

04-18 07:07:09.089 31444-31460/？E/doInBackgrouExcp:无法读取JSON:无法分析日期值“I”（格式：“yyyy-MM-dd”）： 不可解析日期：“I”（通过参考链： com.example.admin.myapplication.ShiftPlannerModel[“shiftPlannerDate”]； 嵌套异常是 com.fasterxml.jackson.databind.JsonMappingException:未能分析 日期值“I”（格式：“yyyy-MM-dd”）：不可解析的日期：“I”（通过 参考链： com.example.admin.myapplication.ShiftPlannerModel[“shiftPlannerDate”]） org.springframework.http.converter.httpMessageNodeTableException: 无法读取JSON:无法分析日期值“I”（格式： “yyyy-MM-dd”）：不可解析日期：“I”（通过引用链： com.example.admin.myapplication.ShiftPlannerModel[“shiftPlannerDate”]； 嵌套异常是 com.fasterxml.jackson.databind.JsonMappingException:未能分析 日期值“I”（格式：“yyyy-MM-dd”）：不可解析的日期：“I”（通过 参考链： com.example.admin.myapplication.ShiftPlannerModel[“shiftPlannerDate”]）

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谢谢恐怖袋熊

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糟糕的是，我已经检查了所有内容，但没有注意到我正在使用的Web服务不是Json格式的。我将更改Web服务，使其以json格式返回。

因此，您的代码似乎将第三个字段误认为第二个字段，为什么不显示有问题的代码？您好，我用模型对象编辑了我的问题。您确定这是有效的json吗？

    @JsonFormat(shape= JsonFormat.Shape.ARRAY)
public class ShiftPlannerModel {

    ShiftPlannerModel(){}

    @JsonFormat
            (shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd")
    private Date shiftPlannerDate;
    private String resourceName;
    private String shiftName;


    public ShiftPlannerModel(Date shiftPlannerDate, String resourceName, String shiftName) {
        this.shiftPlannerDate = shiftPlannerDate;
        this.resourceName = resourceName;
        this.shiftName = shiftName;
    }

 //setters and getters
    public static ArrayList<ShiftPlannerModel> fromJson(JSONArray jsonArray) {
        JSONObject businessJson;
        ArrayList<ShiftPlannerModel> businesses = new ArrayList<ShiftPlannerModel>(jsonArray.length());
        // Process each result in json array, decode and convert to business object
        for (int i=0; i < jsonArray.length(); i++) {
            try {
                businessJson = jsonArray.getJSONObject(i);
            } catch (Exception e) {
                e.printStackTrace();
                continue;
            }

            ShiftPlannerModel business = ShiftPlannerModel.fromJson(businessJson);
            if (business != null) {
                businesses.add(business);
            }
        }

        return businesses;
    }
    // Decodes business json into business model object
    public static ShiftPlannerModel fromJson(JSONObject jsonObject) {
        ShiftPlannerModel shiftPlannerModel = new ShiftPlannerModel();
        // Deserialize json into object fields
        try {
//            shiftPlannerModel.resource = jsonObject.getString("resourceName");
//            shiftPlannerModel.ShiftName = jsonObject.getString("resourceId");
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
            Date workingDays = sdf.parse(jsonObject.getString("shiftPlannerDate"));
//            shiftPlannerModel.shiftPlannerDate = workingDays;

            shiftPlannerModel.setResourceName(jsonObject.getString("resourceName"));
            shiftPlannerModel.setShiftName(jsonObject.getString("shiftName"));
            shiftPlannerModel.setShiftPlannerDate(workingDays);

        } catch (JSONException e) {
            e.printStackTrace();
            return null;
        } catch (ParseException e) {
            e.printStackTrace();
        }
        // Return new object
        return shiftPlannerModel;
    }
}

  [
        [
            "2018-04-16",
            "Elias",
            "I"
        ],
        [
            "2018-04-16",
            "Sithik",
            "II"
        ],
        [
            "2018-04-17",
            "Vijay",
            "II"
        ],
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