Question

我有这种格式的JSON响应：

{
    "success": true,
    "categories": [{
        "id": "774",
        "name": "1"
    }, {
        "id": "774",
        "name": "1"
    }]
}

我正在解析它：

try {
 JSONObject obj = new JSONObject(response);
 String success =  String.valueOf(obj.getBoolean("success"));

 JSONArray arr =  obj.getJSONArray("categories");
 //loop through each object
 for (int i=0; i<arr.length(); i++) {

   JSONObject jsonProductObject = arr.getJSONObject(i);
   String name = jsonProductObject.getString("name");
   String url = jsonProductObject.getString("id");
   Toast.makeText(getApplicationContext(),name, Toast.LENGTH_LONG).show();
 }
} catch (JSONException e) {
   e.printStackTrace();
}

但我只能获得成功的价值。我在这里做错了什么？

Answer 1

更正json键

JSONArray arr = obj.getJSONArray（“checkouts”）;

替换为：

JSONArray arr = obj.getJSONArray（“categories”）;

Answer 2

解析如下 -

JSONObject obj = new JSONObject(json);

String success =  obj.getString("success");
JSONArray arr =  obj.getJSONArray("categories");
//loop through each object
for (int i=0; i<arr.length(); i++) {

    JSONObject jsonProductObject = arr.getJSONObject(i);
    String name = jsonProductObject.getString("name");
    String url = jsonProductObject.getString("id");

}

Answer 3

这样做，

if (!result.equalsIgnoreCase("")) {
                try {
                JSONObject _jsonObject = new JSONObject(result);
                boolean json = false;

                    json = _jsonObject.getBoolean("Status");
                    JSONArray jsonArray1 =  _jsonObject.getJSONArray("categories");

                for (int i=0; i<jsonArray1.length(); i++) {

                    JSONObject jsonObject = jsonArray1.getJSONObject(i);
                    String name = jsonObject.getString("name");
                    String id = jsonObject.getString("id");

                }
                } catch (Exception e) {
                    Utils.printLoge(5, "error parse json", "--->" + e.getMessage());
                    return "ERROR";
                }
            }

JSON数组未被解析

3 个答案: