Question

我使用Flicker API显示图片。我从包含数组的API获取JSON对象。但无法正确解析它。当我试图获取JSON数组时，它会出现异常：

类型org.json.JSONObject无法转换为JSONArray

以下是我的代码段。

JSONObject jsonObject = DataParser.getDataFromWeb();

        try {
            if (jsonObject != null) {
                if (jsonObject.length() > 0) {
                    JSONArray array = null;
                    try {
                        array = jsonObject.getJSONArray("photos");
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                    int lenArray = array.length();
                    if (lenArray > 0) {
                        for (int jIndex = 0; jIndex < lenArray; jIndex++) {
                            //my codes
                        }
                    }
                }
            } else {

            }
        } catch (JSONException je) {
            Log.i(DataParser.TAG, "" + je.getLocalizedMessage());
        }

我从请求中得到的回复如下：

{
  "photos": {
    "page": 1,
    "pages": 100,
    "perpage": 5,
    "total": 500,
    "photo": [
      {
        "id": "38935250244",
        "owner": "130108065@N08",
        "secret": "092b54d6be",
        "server": "4740",
        "farm": 5,
        "title": "misty.morning.rise.up",
        "ispublic": 1,
        "isfriend": 0,
        "isfamily": 0
      },
      {
        "id": "27869878289",
        "owner": "62440012@N04",
        "secret": "5e9929c4b1",
        "server": "4752",
        "farm": 5,
        "title": "Incoming",
        "ispublic": 1,
        "isfriend": 0,
        "isfamily": 0
      },
      {
        "id": "38942505174",
        "owner": "45571539@N06",
        "secret": "cbf3f74e37",
        "server": "4741",
        "farm": 5,
        "title": "Golden-eye",
        "ispublic": 1,
        "isfriend": 0,
        "isfamily": 0
      },
      {
        "id": "39656469601",
        "owner": "38945681@N07",
        "secret": "b470e84c18",
        "server": "4696",
        "farm": 5,
        "title": "New Year's Sunrise",
        "ispublic": 1,
        "isfriend": 0,
        "isfamily": 0
      },
      {
        "id": "25775783908",
        "owner": "100250163@N03",
        "secret": "a9dfe8ed85",
        "server": "4742",
        "farm": 5,
        "title": "Dissipate",
        "ispublic": 1,
        "isfriend": 0,
        "isfamily": 0
      }
    ]
  },
  "stat": "ok"
}

Answer 1

试试这个

        JSONObject jsonObject = DataParser.getDataFromWeb();
        try {
            if (jsonObject != null) {
                JSONObject phots= null;
                try {
                    phots = jsonObject.getJSONObject("photos");
                    JSONArray array = null;
                    try {
                        array = phots.getJSONArray("photo");
                        int lenArray = array.length();
                        if (lenArray > 0) {
                            for (int jIndex = 0; jIndex < lenArray; jIndex++) {
                                //my codes
                            }
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }
                } catch (JSONException e) {
                    e.printStackTrace();
                }

无法使用flicker API获取JSON数组

1 个答案: