Question

我知道我已就同一主题发布了很多问题但我不断遇到的问题我真的不知道如何解决。谢谢所有帮助过我的人，我感谢你们。我想我现在知道错误了，我会为你清楚地发布一切。我试图从一个网址解析json并填充一个列表，所以在这种情况下继承json feed我只想要标题

{"code":200,"error":null,"data":{"news":[{"news_id":"8086","title":"Tickets for Player of the Year award on general sale","tagline":"Event to be held Sunday 25th March at Holiday Inn, Barnsley","content":"Tickets for the inaugural Evo-Stik NPL Player of the Year event are now on sale to the general public.\r\n\r\nPriced at \u00a335, tickets include a three course meal, plus entertainment from renowned tenor Martin Toal and guest speaker Fred Eyre.\r\n\r\nAwards at the event include the Player and Young Player of the Year for each division, as well as divisional teams of the year, the Fans\u2019 Player of the Year and a League Merit award.\r\n\r\nTo purchase your ticket, send a cheque for \u00a335 payable to \u201cNorthern Premier League\u201d to Alan Ogley, 21 Ibberson Avenue, Mapplewell, Barnsley, S75 6BJ. Please include a return address for the tickets to be sent to, and the names of those attending. \r\n\r\nFor more information, e-mail Tom Snee or contact Event organiser Alan Ogley on 07747 576 415\r\n\r\nNote: Clubs can still order tickets by e-mailing Angie Firth - simply state how many tickets you require and you will be invoiced accordingly.\r\n\r\nAddress of venue: Barnsley Road, Dodworth, Barnsley S75 3JT (just off Junction 37 of M1)","created":"2012-02-29 12:00:00","category_id":"1","img":"4539337","category":"General","fullname":"Tom Snee","user_id":"170458","image_user_id":"170458","image_file":"1330519210_0.jpg","image_width":"600","image_height":"848","sticky":"1","tagged_division_id":null,"tagged_team_id":null,"tagged_division":null,"tagged_team":null,"full_image":"http:\/\/images.pitchero.com\/up\/league-news-default-full.png","image_primary":"http:\/\/images.pitchero.com\/ui\/170458\/lnl_1330519210_0.jpg","image_secondary":"http:\/\/images.pitchero.com\/ui\/170458\/lns_1330519210_0.jpg","image_original":"http:\/\/images.pitchero.com\/ui\/170458\/1330519210_0.jpg","image_small":"http:\/\/images.pitchero.com\/ui\/170458\/sm_1330519210_0.jpg"}

继承我的安卓代码

 BufferedReader reader = new BufferedReader(new InputStreamReader(httpResponse.getEntity().getContent(), "UTF-8"));
            String json = reader.readLine();





            // Instantiate a JSON object from the request response
            JSONObject obj = new JSONObject(json);
            List<String> items = new ArrayList<String>();
            Log.i("json", "getting json");

            JSONArray jArray = obj.getJSONArray("news");


            for (int i=0; i < jArray.length(); i++)
            {    JSONObject oneObject = jArray.getJSONObject(i);
                items.add(oneObject.getString("title"));

            }

            setListAdapter ( new ArrayAdapter<String>(this, R.layout.single_item, items));
            ListView list = getListView();
            list.setTextFilterEnabled(true);


            list.setOnItemClickListener(new OnItemClickListener(){

                public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
                        long arg3) {
                    // TODO Auto-generated method stub
                    Toast.makeText(getApplicationContext(), ((TextView) arg1).getText(),1000).show();
                }



            });


        } catch(Exception e){
            // In your production code handle any errors and catch the individual exceptions
            e.printStackTrace();
        }

       }

我尝试在LogCat上记录它，得到的结果没有新闻价值。

所以我的问题是为什么？

Answer 1

您的第一个json响应无效。

您可以在JSONLint.com

测试您的JSON响应

其次，首先必须将数据“对象作为 JSONObject 获取，然后才能获取”新闻“JSONArray。

JSONObject objData = obj.getJSONObject("data");
JSONArray jArray = objData.getJSONArray("news");

Android Json Array问题

1 个答案: