如何从网站获取文字到字符串？

Question

如何在Android上将this URL的XML转换为String？我试图用教程来做，但没办法成功。这是我的代码：

public String getXmlFromUrl(String url) {
    String text = "";
    try {
        HttpGet get = new HttpGet(url); 
        HttpClient httpclient = new DefaultHttpClient();
        HttpResponse response = httpclient.execute(get);
        InputStream inputStream = response.getEntity().getContent();
        String line = "";
        BufferedReader rd = new BufferedReader(new InputStreamReader(inputStream));
        while ((line = rd.readLine()) != null) {
            text += line; 
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
    return text;
}