public String resposeString(String urlStr){

		String result = "";
		try
		{
			URL url = new URL(urlStr);

			HttpURLConnection httpURLConnection = null;

			httpURLConnection = (HttpURLConnection)url.openConnection();

			httpURLConnection.setRequestMethod("POST");

			httpURLConnection.setDoOutput(true);//上傳資料
			httpURLConnection.setConnectTimeout(15000);
			httpURLConnection.setReadTimeout(15000);
			InputStream inputStream = httpURLConnection.getInputStream();//獲取返回的資料流

			InputStreamReader isr = new InputStreamReader(inputStream, "gbk");//一定要在這個地方才不會亂碼(utf-8,gb2312)

			BufferedReader br = new BufferedReader(isr);//利用BufferedReader將流轉為String

			String temp;

			while((temp = br.readLine()) != null)
			{
				result = result + temp;
			}
		}
		catch (MalformedURLException e)
		{
			e.printStackTrace();
		} 
		catch (IOException e) 
		{
			e.printStackTrace();
		} 
		return result;
	}