如何避免 httpsURLConnection.getInputStream() 在 Android 中挂起，如果提供了

Question

身份验证凭据设置在这里，如果提供的用户/密码正确，则一切正常，但如果不正确，则挂起。这不是服务器问题，我用 Curl 和浏览器检查过，不正确的凭据立即返回 401。

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

挂起的代码在这里，它挂起在这一行：in = new BufferedReader（new InputStreamReader（httpURLConn.getInputStream（）））;（没有例外，它只是停留在这一行上）

    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

可能是服务器保持连接活动（保持活动状态标头）吗？