從URL讀取資原始檔：

public static void main(String [] args) throws Exception {
    String urlString = "http://xxx/xxx.html";
    System.out.println(getDocumentAt(urlString));
}

public static String getDocumentAt(String urlString) {
    //此方法相容HTTP和FTP協議
    StringBuffer document = new StringBuffer();

    try
 
 {

         URL url = new URL(urlString);

         URLConnection conn = url.openConnection();

         BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));

         String line = null;

         while ( (line = reader.readLine()) != null) {
             document.append(line + " "
 
);
         }

         reader.close();

    } catch (MalformedURLException e) {
        System.out.println("Unable to connect to URL: " + urlString);
    } catch (IOException e) {
        System.out.println("IOException when connecting to URL: " + urlString);
    }
     return document.toString();
 }