Question

我有一个facebook图形响应，它获取了一组名称和 ID ：

{"data":[{"id":"1402927803328937","name":"Spencer Jones"},{"id":"1402874766667901","name":"Jane Dickson"}],"}

我需要使用数组中的 ID 为第一个数组中返回的每个单独用户查询一次数据库，以检查该用户的“状态”。

我的代码目前正在查询数据库中两次相同的ID，而不是第一个数组中的两个不同ID 。我必须在错误的地方找到一些东西，但我无法理解。

06-13 21:08:54.081: D/FBID:(11514): 277976949048048
06-13 21:08:54.081: D/ID:(11514): 1402927803328937
06-13 21:08:54.081: D/NAME:(11514): Spencer Jones
06-13 21:08:54.631: E/JSON Parser(11514): Error parsing data org.json.JSONException: End of input at character 0 of 
06-13 21:08:54.631: D/JSON 1:(11514): {"message":"Products found","success":1,"products":[{"from_user":"277976949048048","them_status":"accepted","status":"pending","to_user":"1402874766667901"}]}
06-13 21:08:54.631: D/FBID:(11514): 277976949048048
06-13 21:08:54.631: D/ID:(11514): 1402874766667901
06-13 21:08:54.631: D/NAME:(11514): Jane Dickson
06-13 21:08:55.191: E/JSON Parser(11514): Error parsing data org.json.JSONException: End of input at character 0 of 
06-13 21:08:55.191: D/JSON 1:(11514): {"message":"Products found","success":1,"products":[{"from_user":"277976949048048","them_status":"accepted","status":"pending","to_user":"1402874766667901"}]}

日志中存在JSON解析错误，但它对我没有意义，因为它返回了我需要的所有4个变量。唯一的问题是它两次使用相同的ID，而不是两个不同的ID。

// getting JSON Array from facebook response
                products = FriendResponse.getJSONArray("data");

                // looping through products
                for (int i = 0; i < products.length(); i++) {
                    JSONObject c = products.getJSONObject(i);

                    String id = c.getString(TAG_ID);

                        // Building Parameters
                        List<NameValuePair> params1 = new ArrayList<NameValuePair>();
                        params.add(new BasicNameValuePair("fbid", fbid));
                        params.add(new BasicNameValuePair("id", id));

                        Log.d("FBID: ", fbid);
                        Log.d("ID: ", id);

                        // getting JSON string from URL
                        JSONObject json1 = jsonParser1.makeHttpRequest(url_friend_status, "POST", params1);

                        Log.d("JSON 1: ", json1.toString());

                        products1 = json1.getJSONArray(TAG_PRODUCTS);

                     // looping through products1
                        for (int j = 0; j < products1.length(); j++) {
                        JSONObject d = products1.getJSONObject(j);

                    // Storing each json item in variable
                    String name = c.getString(TAG_NAME);
                    String status = d.getString(TAG_STATUS);

                    // creating new HashMap
                    HashMap<String, String> map = new HashMap<String, String>();

                    // adding each child node to HashMap key => value
                    map.put(TAG_ID, id);
                    map.put(TAG_NAME, name);    
                    map.put(TAG_STATUS, status);    

                    // adding HashList to ArrayList
                    productsList.add(map);
                }
                }

Answer 1

//从Facebook回复中获取JSON数组 products = FriendResponse.getJSONArray（＆＃34; data＆＃34;）;

            // looping through products
            for (int i = 0; i < products.length(); i++) {
                JSONObject c = products.getJSONObject(i);

                // Storing each json item in variable
                String name = c.getString(TAG_NAME);
                String status = c.getString(TAG_STATUS);
                String id = c.getString(TAG_ID);

                    // Building Parameters
                    List<NameValuePair> params1 = new ArrayList<NameValuePair>();
                    params.add(new BasicNameValuePair("fbid", fbid));
                    params.add(new BasicNameValuePair("id", id));

                    Log.d("FBID: ", fbid);
                    Log.d("ID: ", id);



                // creating new HashMap
                HashMap<String, String> map = new HashMap<String, String>();

                // adding each child node to HashMap key => value
                map.put(TAG_ID, id);
                map.put(TAG_NAME, name);    
                map.put(TAG_STATUS, status);    

                // adding HashList to ArrayList
                productsList.add(map);
            }

由于JSON文件只有一个数组（例如：{myJSONDATA：[{}]}），[]只是一个你不需要循环两次的数组，你应该只循环一次。

查询数组中每个用户的数据库

1 个答案: