Source Code : Get Relative Url for servlet

Java Is Open Source Programming Language You Can Download From Java and Java Libraries From http://www.oracle.com. Click Here to download
We provide this code related to title for you to solve your developing problem easily. Libraries which is import in this program you can download from http://www.oracle.com. Click Here or search from google with Libraries Name you get jar file related it

Get Relative Url for servlet

 
/* 
 * Copyright (C) 2006 Methodhead Software LLC.  All rights reserved.
 * 
 * This file is part of TransferCM.
 * 
 * TransferCM is free software; you can redistribute it and/or modify it under the
 * terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
 * 
 * TransferCM is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * TransferCM; if not, write to the Free Software Foundation, Inc., 51 Franklin St,
 * Fifth Floor, Boston, MA  02110-1301  USA
 */


import javax.servlet.http.HttpServletRequest;
import java.io.File;

public class ServletUtils {

  // constructors /////////////////////////////////////////////////////////////

  // constants ////////////////////////////////////////////////////////////////

  // classes //////////////////////////////////////////////////////////////////

  // methods //////////////////////////////////////////////////////////////////

  /**
   * NOT UNIT TESTED Returns the URL (including query parameters) minus the scheme, host, and
   * context path.  This method probably be moved to a more general purpose
   * class.
   */
  public static String getRelativeUrl(
    HttpServletRequest request ) {

    String baseUrl = null;

    if ( ( request.getServerPort() == 80 ) ||
         ( request.getServerPort() == 443 ) )
      baseUrl =
        request.getScheme() + "://" +
        request.getServerName() +
        request.getContextPath();
    else
      baseUrl =
        request.getScheme() + "://" +
        request.getServerName() + ":" + request.getServerPort() +
        request.getContextPath();

    StringBuffer buf = request.getRequestURL();

    if ( request.getQueryString() != null ) {
      buf.append( "?" );
      buf.append( request.getQueryString() );
    }

    return buf.substring( baseUrl.length() );
  }

  /**
   * NOT UNIT TESTED Returns the base url (e.g, <tt>http://myhost:8080/myapp</tt>) suitable for
   * using in a base tag or building reliable urls.
   */
  public static String getBaseUrl( HttpServletRequest request ) {
    if ( ( request.getServerPort() == 80 ) ||
         ( request.getServerPort() == 443 ) )
      return request.getScheme() + "://" +
             request.getServerName() +
             request.getContextPath();
    else
      return request.getScheme() + "://" +
             request.getServerName() + ":" + request.getServerPort() +
             request.getContextPath();
  }

  /**
   * Returns the file specified by <tt>path</tt> as returned by
   * <tt>ServletContext.getRealPath()</tt>.
   */
  public static File getRealFile(
    HttpServletRequest request,
    String path ) {

    return
      new File( request.getSession().getServletContext().getRealPath( path ) );
  }

  // properties ///////////////////////////////////////////////////////////////

  // attributes ///////////////////////////////////////////////////////////////
}

   
  

Thank with us