public static String getWebPage(String urlStr) throws IOException {
		URL url;
		String temp;
		String charset;
		final StringBuffer sb = new StringBuffer();
		try {
			url = new URL(urlStr);
			charset = Decoder.parseByResHeader(urlStr);
			//ҳδʽĬϲutf-8
			if(charset== null){
				charset="utf-8";
			}
			final BufferedReader in = new BufferedReader(new InputStreamReader(url.openStream(), charset));
			while ((temp = in.readLine()) != null) {
				sb.append(temp);
			}
			in.close();
		} catch (MalformedURLException e) {
			ContentSave.SaveLog(urlStr, "MalformedURLException");
		} catch (final IOException e) {
			ContentSave.SaveLog(urlStr, "IOException");
		}
		return sb.toString();

	}