Question

以下是代码，json文件以及执行代码时获得的异常。

//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);
                }

下面的代码是Model对象和映射值：

    @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"
        ],
----------------------------

//阅读上述JSON格式时出现异常

04-18 07：07：09.089 31444-31460 /？ E / doInBackgrouExcp：无法读取JSON：无法解析日期值'I'（格式：“yyyy-MM-dd”）：无法解释的日期：“我”（通过参考链： com.example.admin.myapplication.ShiftPlannerModel [ “shiftPlannerDate”]）; 嵌套异常是 com.fasterxml.jackson.databind.JsonMappingException：无法解析日期值'I'（格式：“yyyy-MM-dd”）：无法解释的日期：“我”（通过参考链： com.example.admin.myapplication.ShiftPlannerModel [ “shiftPlannerDate”]） org.springframework.http.converter.HttpMessageNotReadableException：无法读取JSON：无法解析日期值'I'（格式： “yyyy-MM-dd”）：无法解释的日期：“我”（通过参考链： com.example.admin.myapplication.ShiftPlannerModel [ “shiftPlannerDate”]）; 嵌套异常是 com.fasterxml.jackson.databind.JsonMappingException：无法解析日期值'I'（格式：“yyyy-MM-dd”）：无法解释的日期：“我”（通过参考链： com.example.admin.myapplication.ShiftPlannerModel [ “shiftPlannerDate”]）

Answer 1

ThanksAlot Scary Wombat！

我的不好我已经检查了一切，但没有注意到我正在消费的网络服务不是Json格式。我将更改webservices，使其以json格式返回。

HttpMessageNotReadableException：无法读取JSON：无法解析日期值'I'

1 个答案: