I have a methor to return pagecontent of link

but when it run, alway return "Do not perrmisson ", plesea check it

here is code to return string pagecontent

public static String getPageContent(String targetURL) throws Exception { Hashtable contentHash = new Hashtable(); URL url; URLConnection conn;

  // The data streams used to read from and write to the URL connection.
  DataOutputStream out;
  DataInputStream in;

  // String returned as the result .
  String returnString = "";

  // Create the URL object and make a connection to it.
  url = new URL(targetURL);
  conn = url.openConnection();
  // check out permission of acess URL
  if (conn.getPermission() != null) {
   returnString = "Do not Permission access URL ";
  } else {

   // Set connection parameters. We need to perform input and output,
   // so set both as true.
   conn.setDoInput(true);
   conn.setDoOutput(true);

   // Disable use of caches.
   conn.setUseCaches(false);

   // Set the content type we are POSTing. We impersonate it as
   // encoded form data
   conn.setRequestProperty("Content-Type",
     "application/x-www-form-urlencoded");

   // get the output stream .
   out = new DataOutputStream(conn.getOutputStream());
   String content = "";

   // Create a single String value pairs for all the keys
   // in the Hashtable passed to us.
   Enumeration e = contentHash.keys();
   boolean first = true;
   while (e.hasMoreElements()) {
    // For each key and value pair in the hashtable
    Object key = e.nextElement();
    Object value = contentHash.get(key);

    // If this is not the first key-value pair in the hashtable,
    // concantenate an "&" sign to the constructed String
    if (!first)
     content += "&";

    // append to a single string. Encode the value portion
    content += (String) key + "="
      + URLEncoder.encode((String) value);

    first = false;
   }

   // Write out the bytes of the content string to the stream.
   out.writeBytes(content);
   out.flush();
   out.close();

   // check if can't read from URL

   // Read input from the input stream.
   in = new DataInputStream(conn.getInputStream());

   String str;
   while (null != ((str = in.readLine()))) {
    returnString += str + "\n";
   }

   in.close();
  }

  // return the string that was read.
  return returnString;
 }