文件流输出到本地内存/直接访问外网路径，等到返回值

public static void logResult(String sWord) {

FileWriter writer = null;

try {

writer = new FileWriter(AlipayConfig.log_path + "alipay_log_" + System.currentTimeMillis()+".txt");

writer.write(sWord);

} catch (Exception e) {

e.printStackTrace();

} finally {

if (writer != null) {

try {

writer.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}

private static String checkUrl(String urlvalue) {

String inputLine = "";

try {

URL url = new URL(urlvalue);

HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();

BufferedReader in = new BufferedReader(new InputStreamReader(urlConnection

.getInputStream()));

inputLine = in.readLine().toString();

} catch (Exception e) {

e.printStackTrace();

inputLine = "";

}

return inputLine;

}