5
public class UrlVarificationTask extends AsyncTask<Void, Void, Integer> {
private String url;
private UrlVarificationDelegate delegate;
private HttpURLConnection huc;
public UrlVarificationTask(String url, UrlVarificationDelegate delegate) {
this.url = url;
this.delegate = delegate;
}
@Override
protected void onPreExecute() {
super.onPreExecute();
}
@Override
protected Integer doInBackground(Void... params) {
int responseCode = 0;
try {
System.setProperty("http.keepAlive", "false");
URL u = new URL(url);
huc = (HttpURLConnection) u.openConnection();
huc.setRequestMethod("HEAD");
huc.connect();
responseCode = huc.getResponseCode();
} catch (MalformedURLException mal) {
responseCode = -555;
} catch (IOException io) {
responseCode = -444;
} catch (Exception ex) {
responseCode = -333;
ex.printStackTrace();
}
if (huc != null) {
try {
huc.getInputStream().close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
huc.disconnect();
}
Logger.debug("Response Code==" + responseCode);
return responseCode;
}
@Override
protected void onPostExecute(Integer responseCode) {
delegate.urlVarificationResponseCode(responseCode);
super.onPostExecute(responseCode);
}
}
我上面核桃用於驗證網址,URL驗證工作正常,但保持連接,並限制任何進一步的請求
如果HEAD給我響應代碼200只,然後我打開一個URL網頁視圖。
但是一旦我調用它,它保持連接並且不允許任何其他的http請求,即使關閉後,該怎麼辦?