Question

我正在尝试为YouTube开发一个示例应用程序，以便直接从YouTube上在我的Android设备上播放视频。在这方面我已经开发了一些代码来解析JSON，但到目前为止我还没有成功。请帮帮我，如何解析Youtube JSON？这是我的代码。

protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        getVideoJSON ();
    }

    public JSONObject getVideoJSON () 
    {
        final String URL = "https://gdata.youtube.com/feeds/api/users/Football/uploads?v=2&alt=json";

        try
        {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);


            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(URL);
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity entity = response.getEntity(); 
            String data = EntityUtils.toString(entity);
            JSONArray VideoData = new JSONArray(data);
            JSONObject video = VideoData.getJSONObject(0); 


            Log.e("URL", "Successfully parse");

            return video;


        }
        catch(Exception e)
        {
            Log.e("URL", "Failed");
            e.printStackTrace();
        }
        return null;

    }

Answer 1

这个url会返回给你一个JSONObject，而不是JSONArray，试试这个：

public JSONObject getVideoJSON () 
    {
        final String URL = "https://gdata.youtube.com/feeds/api/users/Football/uploads?v=2&alt=json";

        try
        {
            StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
            StrictMode.setThreadPolicy(policy);


            HttpClient httpclient = new DefaultHttpClient();
            HttpPost httppost = new HttpPost(URL);
            HttpResponse response = httpclient.execute(httppost);
            HttpEntity entity = response.getEntity(); 
            String data = EntityUtils.toString(entity);
            JSONObject VideoData = new JSONObject(data); 


            Log.e("URL", "Successfully parse");

            return video;


        }
        catch(Exception e)
        {
            Log.e("URL", "Failed");
            e.printStackTrace();
        }
        return null;

    }

如果您想更清楚地看到您的JSON结构，此网站可能会有所帮助：http://json-indent.appspot.com/

如何解析Android中的JSON？

1 个答案: