HttpMessageNotReadableException：无法读取JSON：无法分析日期值“i”

Question

下面是代码、json文件和我在执行代码时得到的异常。

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);
                }

    @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;
    }
}

//JSON

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

//读取上述JSON格式时发生异常

04-18 07:07:09.089 314 44-31460/？E/DOINBackgroupExcp：无法读取JSON：无法解析日期值“i”（格式：“YYYY-MM-DD”）：无法解析的日期：“i”（通过引用链：com.example.admin.myApplication.ShiftPlannerModel[“ShiftPlannerDate”])；嵌套异常为com.fasterxml.jackson.databind.JSONMappingException：未能解析日期值“i”（格式：“YYYY-MM-DD”）：无法解析的日期：“i”（通过引用链：com.example.admin.MyApplication.ShiftPlannerModel[“ShiftPlannerDate”])org.springFramework.http.converter.HttpMessageNoteAdableException：无法读取JSON：未能解析日期值“i”（格式：“YYYY-MM-DD”）：无法解析的日期：“i”（通过引用链：嵌套异常为com.fasterxml.jackson.databind.JsonMappingException：无法解析日期值“i”（格式：“yyyy-mm-dd”）：无法解析的日期：“i”（通过引用链：com.example.admin.MyApplication.ShiftPlannerModel[“ShiftPlannerDate”])

Answer 1

感恩节恐怖袋熊！

糟糕的是，我已经检查了所有的东西，但是没有注意到我正在使用的webservice不是Json格式的。我将更改webservices，使其以json格式返回。