java – 使用HttpURLConnection下载html时的奇怪行为

在我的 Android维基百科阅读器应用程序中,我正在使用HttpURLConnection下载文章的html,一些用户报告他们无法看到文章,而是看到一些CSS,所以看起来他们的操作符在下载之前以某种方式预处理html,而其他维基百科读者似乎工作正常.

示例网址：http://en.m.wikipedia.org/wiki/Black_Moon_(album)

我的方法：

public static String downloadString(String url) throws Exception
{
    StringBuilder downloadedHtml = new StringBuilder(); 

    HttpURLConnection urlConnection = null;
    String line = null;
    BufferedReader rd = null;

    try
    {
        URL targetUrl = new URL(url);

        urlConnection = (HttpURLConnection) targetUrl.openConnection();

        if (url.toLowerCase().contains("/special"))
            urlConnection.setInstanceFollowRedirects(true);
        else
            urlConnection.setInstanceFollowRedirects(false);

        //read the result from the server
        rd = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));

        while ((line = rd.readLine()) != null)
            downloadedHtml.append(line + 'n');
    }
    catch (Exception e)
    {
        AppLog.e("An exception occurred while downloading data.rn: " + e);
        e.printStackTrace();
    }
    finally
    {
        if (urlConnection != null)
        {
            AppLog.i("Disconnecting the http connection");
            urlConnection.disconnect();
        }

        if (rd != null)
            rd.close();
    }

    return downloadedHtml.toString();
}

我无法重现这个问题,但必须有办法解决这个问题吗？我甚至通过将setInstanceFollowRedirects设置为’false’来禁用重定向,但它没有帮助.

我错过了什么吗？

用户报告的示例：

http://pastebin.com/1E3Hn2yX