如果提供不正確的登錄憑據，如何避免Android中的httpsURLConnection.getInputStream（）掛起？

Question

身份驗證憑證在此處設置，如果提供的用戶/密碼正確，則一切正常，但如果它們不正確則會掛起。這不是服務器的問題，我用捲曲和瀏覽器檢查，不正確的憑據返回401立刻意識到掛在這裏：

Authenticator.setDefault(new Authenticator() { 
     protected PasswordAuthentication getPasswordAuthentication() { 
      return new PasswordAuthentication(user, password.toCharArray()); 
     } 
    }); 

代碼，它掛在這條線：在=新的BufferedReader（新的InputStreamReader（httpURLConn。的getInputStream（）））; （沒有例外，它只是停留在這條線上）

try { 
     URL url = new URL(resourceUrl); 
     HttpURLConnection httpURLConn = (HttpURLConnection) url.openConnection(); 
     String rawData = ""; 
     String currentLine = null; 
     BufferedReader in = null; 

     in = new BufferedReader(new InputStreamReader(httpURLConn.getInputStream())); 
     while ((currentLine = in.readLine()) != null) { 
      rawData = rawData.concat(currentLine); 
     } 
     in.close(); 
    } catch (UnknownHostException e) { 
     Log.i(CLASS_NAME + "::" + METHOD_NAME 
       , "An exception occured while reading data from remote host. httpURLConn.responseCode = " + httpURLConn.getResponseCode() 
       + "/httpURLConn.responseMessage = " + httpURLConn.getResponseMessage(), e); 
     throw new UnknownHostException(); 
    } catch (IOException e) { 
     Log.i(CLASS_NAME + "::" + METHOD_NAME 
       , "An exception occured while reading data from remote host. httpURLConn.responseCode = " + httpURLConn.getResponseCode() 
       + "/httpURLConn.responseMessage = " + httpURLConn.getResponseMessage(), e); 
     throw new IOException(); 
    } 

Answer 1

難道服務器是否保持連接活着（Keep-Alive header）？