我正在尝试访问此网址到Youtube(手机没有代理设置,直接上网)
http://gdata.youtube.com/feeds/api/videos/-/music?q=gagamv&max-results=50&alt=json&v=2
上面的URL我在任何PC浏览器中运行良好(将返回纯JSON字符串),即使我没有登录Youtube。
但我尝试通过Android的HttpPost访问此网址,只有我能获得无效的请求URI
这是我的代码:
public static final String HEADER_TYPE="Content-Type";
private static final String HEADER_TYPE_SET="application/text; charset=utf-8";
public static final String HEADER_TYPE_2="Accept";
private static final String HEADER_TYPE_SET_2="application/x-www-form-urlencoded";
/** Socket操作逾時(3600秒) */
public static final int TIMEOUT_SOCKET=7000;
/** 連線逾時(3600秒) */
public static final int TIMEOUT_CONECTION=7000;
List<NameValuePair> params=new ArrayList<NameValuePair>();
HttpParams httpP=null;
DefaultHttpClient mHttpClient=null;
UrlEncodedFormEntity entity=null;
HttpResponse httpResp=null;
String ret="";
BasicHeader[] header=new BasicHeader[2];
header[0]=new BasicHeader(HEADER_TYPE, HEADER_TYPE_SET);
header[1]=new BasicHeader(HEADER_TYPE_2, HEADER_TYPE_SET_2);
httpP=new BasicHttpParams();
HttpConnectionParams.setConnectionTimeout(httpP, TIMEOUT_CONECTION);
HttpConnectionParams.setSoTimeout(httpP, TIMEOUT_SOCKET);
String url=new String("http://gdata.youtube.com/feeds/api/videos/-/music?q=gagamv&max-results=50&alt=json&v=2");
Log.d(Constants.TAG, "Youtube search URL: "+url);
HttpPost post=new HttpPost(url);
mHttpClient=new DefaultHttpClient(httpP);
entity=new UrlEncodedFormEntity(params);
post.addHeader(entity.getContentType());
post.setEntity(entity);
httpResp=mHttpClient.execute(post);
String status=httpResp.getStatusLine().toString();
ret=new String(EntityUtils.toString(httpResp.getEntity(), "UTF-8"));
我该怎么做才能解决这个问题?
答案 0 :(得分:1)
您需要使用HTTP GET请求。问题是您正在使用HTTP Post,并且当您使用get请求时,url将返回数据。
尝试以下代码(我已将缓冲区大小设置为4096,但您可以根据需要将其更改为动态):
URL url = new URL("http://gdata.youtube.com/feeds/api/videos/-/music?q=gagamv&max-results=50&alt=json&v=2");
HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();
try {
InputStream in = new BufferedInputStream(urlConnection.getInputStream());
byte buffer[] = new byte[4096];
in.read(buffer);
String str = new String(buffer);
Log.d(TAG, " Data: " + str);
} finally {
urlConnection.disconnect();
}