Question

我会尽量简短，请询问是否有不明确之处。我从vk.com（大型社交网络，如果有人不知道）获得用户的音频列表。回复如下：

   {"response":[{
  "aid":"60830458","owner_id":"6492","artist":"Noname","title":"Bosco",
  "duration":"195","url":"http:\/\/cs40.vkontakte.ru\/u06492\/audio\/2ce49d2b88.mp3"},
  {"aid":"59317035","owner_id":"6492","artist":"Mestre Barrao","title":"Sinhazinha",
  "duration":"234","url":"http:\/\/cs510.vkontakte.ru\/u2082836\/audio\/
  d100f76cb84e.mp3"}]}

通常它会更长，因为用户可以在他的个人资料中拥有数百甚至数千个曲目。艺术家和标题也可以包含西里尔字母，这就是我在Parser中使用UTF-8的原因。我对JSON并不熟悉，我正在尝试使用以下内容解析响应：

 public class JSONParser {

static InputStream is = null;
static JSONObject jObj = null;
static String json = "";


public JSONParser() {

}

public static JSONObject getJSONFromUrl(String url) {


    try {

        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(url);

        HttpResponse httpResponse = httpClient.execute(httpPost);
        HttpEntity httpEntity = httpResponse.getEntity();
        is = httpEntity.getContent();          

    } catch (UnsupportedEncodingException e) {
        e.printStackTrace();
    } catch (ClientProtocolException e) {
        e.printStackTrace();
    } catch (IOException e) {
        e.printStackTrace();
    }

    try {
        BufferedReader reader = new BufferedReader(new InputStreamReader(
                is, "UTF-8"), 8);
        StringBuilder sb = new StringBuilder();
        String line = null;
        while ((line = reader.readLine()) != null) {
            sb.append(line + "\n");
        }
        is.close();
        json = sb.toString();
    } catch (Exception e) {
        Log.e("Buffer Error", "Error converting result " + e.toString());
    }

    try {
        jObj = new JSONObject(json);
    } catch (JSONException e) {
        Log.e("JSON Parser", "Error parsing data " + e.toString());
    }


    return jObj;

}
  }

但应用程序崩溃时出现IllegalArgumentException异常（索引0处的scheme中的非法字符）：

02-27 10:37:35.870: E/AndroidRuntime(21038): FATAL EXCEPTION: main
02-27 10:37:35.870: E/AndroidRuntime(21038): java.lang.RuntimeException: Unable to resume activity {com.vadim.android.vk_player/com.vadim.android.vk_player.MainActivity}: java.lang.IllegalArgumentException: Illegal character in scheme at index 0: {"response":[{"aid":191819427,"owner_id":13590837,"artist":"Buena Vista Social Club","title":"El Cuarto de Tula","duration":445,"url":"http:\/\/cs548.userapi.com\/u361189\/audios\/b8c6a3bdb0bb.mp3","lyrics_id":"1133390"},{"aid":191477921,"owner_id":13590837,"artist":"Buena Vista Social Club","title":"Hasta Siempre Comandante Che Guevara","duration":193,"url":"http:\/\/cs4515.userapi.com\/u7198823\/audios\/5fafa2136e16.mp3","lyrics_id":"2876258"},{"aid":190900891,"owner_id":13590837,"artist":"Slade","title":"Oh la la in L.A.","duration":229,"url":"http:\/\/cs4962.userapi.com\/u9811745\/audios\/ed7445d38bef.mp3"},{"aid":188976833,"owner_id":13590837,"artist":"PR-MEX","title":"У Билли Гейтса","duration":126,"url":"http:\/\/cs5002.userapi.com\/u4693819\/audios\/a1899ebb7716.mp3","lyrics_id":"5201762"},{"aid":186998450,"owner_id":13590837,"artist":"The Best Latino Dance","title":"2Sweet-Bomba Latina","duration":213,"url":"http:\/\/cs4341.userapi.com\/u49441496\/audios\/788cd8243842.mp3"},{"aid":186486990,"owner_id":13590837,"artist":"001 Track No05 Latin music 9","title":"001 Track No05 Latin music 9","duration":226,"url":"http:\/\/cs4341.userapi.com\/u25293142\/audios\/277e46d451d4.mp3"},{"aid":185813300,"owner_id":13590837,"artist":"Латино ?? ","title":" Самбо","duration":190,"url":"http:\/\/cs4206.userapi.com\/u2183525\/audios\/678fe97a8700.mp3","lyrics_id":"4944025"},{"aid":185805191,"owner_id":13590837,"artist":"Дженифер Лопес","title":"Латино","duration":212,"url":"http:\/\/cs4220.userapi.com\/u33799853\/audios\/685f4bc7024d.mp3","lyrics_id":"3985793"},{"aid":185355131,"owner_id":13590837,"artist":"Latino","title":"Afa-Na-Na","duration":174,"url":"http:\/\/cs548.userapi.com\/u406078\/audios\/5e771c6958c4.mp3","lyrics_id":"8840070"},{"aid":185167860,"owner_id":13590837,"artist":"Batuka-Latino_StepMIX(137bpm)","title":"demo","duration":232,"url":"http:\/\/cs4863.userapi.com\/u43189860\/audios\/b6a08490146a.mp3","lyrics_id":"10200160"},{"aid":185143167,"owner_id":13590837,"artist":"Pr, Mex","title":"Ставил Windows программист","duration":130,"url":"http:\/\/cs4246.userapi.com\/u3476823\/audios\/75161ed38448.mp3","lyrics_id":"2012814"},{"aid":185141056,"owner_id":13590837,"artist":"Antony Melnyk, Sergiy Tykhanskyy ","title":"Debugging Song","duration":234,"url":"http:\/\/cs6126.userapi.com\/u42350435\/audios\/f83f20d8d754.mp3","lyrics_id":"36053942"},{"aid":185141033,"owner_id":13590837,"artist":"админ","title":"чистый дос","duration":173,"url":"http:\/\/cs4429.userapi.com\/u9853602\/audios\/2b77464f9193.mp3"},{"aid":184547392,"owner_id":13590837,"artist":"Geri Halliwell","title":"Mi chico latino (samba)","duration":194,"url":"http:\/\/cs5057.userapi.com\/u8186180\/audios\/67119f2af914.mp3"},{"aid":184022338,"owner_id":13590837,"artist":"Elena Paparizou","title":"My number one","duration":176,"url":"http:\/\/cs1092.userapi.com\/u830723\/audios\/25552d1f7e40.mp3","lyrics_id":"6640643"},{"aid":183519519,"owner_id":13590837,"artist":"Latino - Samba - Elena Paparizou","title":"Gigolo","duration":203,"url":"http:\/\/cs4405.userapi.com\/u3609345\/audios\/5255ecdda950.mp3","lyrics_id":"7216473"},{"aid":183219402,"owner_id":13590837,"artist":"David Bisbal ","title":" Llorare las penas (самба)","duration":260,"url":"http:\/\/cs5003.userapi.com\/u32245826\/audios\/fe718c40aed1.mp3"},{"aid":183110662,"owner_id":13590837,"artist":"Juanes","title":"La soledad","duration":193,"url":"http:\/\/cs4615.userapi.com\/u400878\/audios\/40abd9dcb4f5.mp3","lyrics_id":"7753114"},{"aid":180455728,"owner_id":13590837,"artist":"Guns N' Roses","title":"Sweet Child O' Mine","duration":356,"url":"http:\/\/cs5125.userapi.com\/u1412326\/audios\/1fc190388445.mp3","lyrics_id":"5582681"},{"aid":180317426,"owner_id":1359083

任何想法我做错了什么以及解析给定格式的响应的正确方法是什么？有很多应用程序使用相同的API，因此JSON是正确的。不知道这里有什么问题

Answer 1

非法参数异常在阅读时出现在JSON案例中。所以因为那些网址无效的json。同样对于下一次通信，将logcat放置为文本pls。

Answer 2

Try to display the JSON response in JSONlint.com without this url part of :
"url": "http:\/\/cs510.vkontakte.ru\/u2082836\/audio\/
  d100f76cb84e.mp3"

You will find, the response will be validated properly.

I think there is some space characters present in the url part (between audio\/ and d100f76cb84e.mp3) which is coming from response:
"url": "http:\/\/cs510.vkontakte.ru\/u2082836\/audio\/
  d100f76cb84e.mp3"

android - 从服务器解析JSON响应时出错

2 个答案: