title: when get pagecontent from URL the connect alway return nopermistion?
body: <p>I have a methor to return pagecontent of link </p>
  
  <p>but when it run, alway return "Do not perrmisson ", plesea check it </p>
  
  <p>here is code to return  string pagecontent </p>
  
  <pre><code>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 "&amp;" sign to the constructed String
                  if (!first)
                      content += "&amp;";
  
                  // 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;
      }
  </code></pre>