采用字符串的parse方法用于URL格式。您需要在解析字符串之前将其包装在StringReader中。如果可以将XML作为InputStream并进行解析，则更好，例如：
String uri = "http://api.flurry.com/eventMetrics/Event?apiAccessCode=?????&apiKey=??????&startDate=2011-2-28&endDate=2011-3-1&eventName=Tip%20Calculated";URL url = new URL(uri);HttpURLConnection connection = (HttpURLConnection) url.openConnection();connection.setRequestMethod("GET");connection.setRequestProperty("Accept", "application/xml");InputStream xml = connection.getInputStream();documentBuilderFactory dbf = documentBuilderFactory.newInstance();documentBuilder db = dbf.newdocumentBuilder();document doc = db.parse(xml);
