DZone Snippets: JSP code

Documentum JSP template

gasull2 (dgasull) — Mon, 18 Jun 2007 09:08:04 GMT



<%@ page language="java" contentType="text/html; charset=ISO-8859-1"

       pageEncoding="ISO-8859-1"%>

<%@ taglib uri="/WEB-INF/tlds/dmform_1_0

.tld" prefix="dmf"%>

<%@ taglib uri="/WEB-INF/tlds/dmformext_1_0.tld" prefix="dmfx"%>



<%-- Importa la clase controladora para poder acceder a los atributos --%>

<%@ page import="com.example.foo.Bar" %>



<%-- Para poder acceder a la clase Form desde código Java en la .jsp. --%>

<%@ page import="com.documentum.web.form.Form" %>









       <%-- Ejecuta la clase controladora --%>

       



       

       





       <%-- Some code --%>



       <%-- necesario para cualquier botón, incluido javascript --%>

       



               <%-- Some code --%>



       



       <%-- Some code --%>

RSS jsp taglib v 0.2

ranjan_company (ranjan) — Fri, 03 Nov 2006 18:08:03 GMT

// taglib to display rss in jsp page



package com.ranjan.feedreader;



/**

 * Created by IntelliJ IDEA.

 * User: Rapid

 * Date: Oct 9, 2006

 * Time: 3:18:23 PM

 * To change this template use File | Settings | File Templates.

 */

import java.net.URL;

import java.util.Iterator;

import java.util.HashMap;



import com.sun.syndication.feed.module.Module;

import com.sun.syndication.feed.synd.SyndEntry;

import com.sun.syndication.feed.synd.SyndFeed;

import com.sun.syndication.io.SyndFeedInput;

import com.sun.syndication.io.XmlReader;

import javax.servlet.jsp.JspContext;



import javax.servlet.jsp.tagext.Tag;

import javax.servlet.jsp.tagext.TagSupport;

import javax.servlet.jsp.JspException;



/* this tag should return the RSS feed as it is

 *it's purpose is to retrieve rss feeds

 *

 */



public class FeedReader extends TagSupport{



    private String url = null;











    SyndFeedInput input ;

    URL feedUrl;

    SyndFeed feed ;

    String html ;





    public String getUrl() {

        return url;

    }



    public void setUrl(String url) {

        this.url = url;

    }



    public int doStartTag() throws JspException {



        return EVAL_BODY_INCLUDE;    //To change body of overridden methods use File | Settings | File Templates.

    }



    public int doEndTag() throws JspException {









            try  {







                feedUrl  = new URL(url);



                input  = new SyndFeedInput();



                feed = input.build(new XmlReader(feedUrl));

/*

                String metaRSS = "Title: " + feed.getTitle() + "\n" +

                "Author: " + feed.getAuthor()  + "\n" +

                 "Description: " + feed.getDescription()  + "\n" +

                 "Pub date: " + feed.getPublishedDate()  + "\n" +

                 "Copyright: " + feed.getCopyright() ;



                 pageContext.getOut().write( metaRSS );

*/



                  html =



                        "" +

                        "" +

                            "" +

                        "" +

                            "" +

                            "" +

                        "" +

                         "" +

                            "" +

                        "" +



                        "" +

                            "" + feed.getTitle() +

                            "
" + feed.getDescription() +

                            "
" + feed.getCopyright() +

                            "

" ;


                                    //""                      

                                   for( Iterator iter = feed.getEntries().iterator(); iter.hasNext(); ){


                                   html +=  "" +

                                                   createHREF(((SyndEntry)iter.next()).getLink() , ((SyndEntry)iter.next()).getTitle() )  +

                                   //             "" +

                                            ""; 

                                   //((SyndEntry)iter.next()).getLink().toString()

                                    }


                        html +=

                                "
 " + /**/  + "                                   
 " + ((SyndEntry)iter.next()).getTitle()  + "
" +

                         "" +

                        "" ;





                pageContext.getOut().write( html );





            }

            catch (Exception ex) {

                ex.printStackTrace();

                System.out.println("ERROR: " + ex.getMessage());

            }













        return EVAL_PAGE;    //To change body of overridden methods use File | Settings | File Templates.

    }

    public String createHREF( String link, String value )

    {

        return  " " + value  + "";        

    }



}



//////////////////////////////////////////

tld     /////////////////////////////////

//////////////////////////////////////////

taglib for rss v 0.1

ranjan_company (ranjan) — Fri, 03 Nov 2006 12:38:54 GMT

// jsp taglibrary for rss



// the java code

package com.ranjan.feedreader;



/**

 * Created by IntelliJ IDEA.

 * User: Rapid

 * Date: Oct 9, 2006

 * Time: 3:18:23 PM

 * To change this template use File | Settings | File Templates.

 */

import java.net.URL;

import java.util.Iterator;

import java.util.HashMap;



import com.sun.syndication.feed.module.Module;

import com.sun.syndication.feed.synd.SyndEntry;

import com.sun.syndication.feed.synd.SyndFeed;

import com.sun.syndication.io.SyndFeedInput;

import com.sun.syndication.io.XmlReader;

import javax.servlet.jsp.JspContext;



import javax.servlet.jsp.tagext.Tag;

import javax.servlet.jsp.tagext.TagSupport;

import javax.servlet.jsp.JspException;



/* this tag should return the RSS feed as it is 

 *it's purpose is to retrieve rss feeds 

 *

 */



public class FeedReader extends TagSupport{



    private String url = null;



    



    

    

    SyndFeedInput input ;

    URL feedUrl;

    SyndFeed feed ;

    String html ;

    



    public String getUrl() {

        return url;

    }



    public void setUrl(String url) {

        this.url = url;

    }

    

    public int doStartTag() throws JspException {



        return EVAL_BODY_INCLUDE;    //To change body of overridden methods use File | Settings | File Templates.

    }



    public int doEndTag() throws JspException {









            try  {



    



                feedUrl  = new URL(url);



                input  = new SyndFeedInput();

                

                feed = input.build(new XmlReader(feedUrl));

/*

                String metaRSS = "Title: " + feed.getTitle() + "\n" +

                "Author: " + feed.getAuthor()  + "\n" +

                 "Description: " + feed.getDescription()  + "\n" +

                 "Pub date: " + feed.getPublishedDate()  + "\n" +

                 "Copyright: " + feed.getCopyright() ;



                 pageContext.getOut().write( metaRSS );

*/

               

                  html =       



                        "" +

                        "" +

                            "" + 

                        "" +

                            "" +

                            "" + 

                        "" +

                         "" +

                            "" + 

                        "" +



                        "" +

                            "" + feed.getTitle() + 

                            "
" + feed.getDescription() + 

                            "
" + feed.getCopyright() +

                            "                        
                                        
" ;


                                   for( Iterator iter = feed.getEntries().iterator(); iter.hasNext(); ){

                                   html +=  "" +

                                                "" +


                                                "" ;


                                   //((SyndEntry)iter.next()).getLink().toString() 

                                    }       


                        html += 

                                "                  
" +   

                                                    ((SyndEntry)iter.next()).getTitle() + "" + 



                                                "                                              
                                   
                   
" +

                         "" +                        

                        "" ;

                           

                

                pageContext.getOut().write( html );

                

                

            }

            catch (Exception ex) {

                ex.printStackTrace();

                System.out.println("ERROR: " + ex.getMessage());

            }





        



        

        

        return EVAL_PAGE;    //To change body of overridden methods use File | Settings | File Templates.

    }





}

//////////////////////////////////////////////////



//  the tld file 

//////////////////////////////////////////////////





  1.0

  rss

  /WEB-INF/tlds/rss

  

  

       rss

       com.ranjan.feedreader.FeedReader

       empty

          

            url

            true

            false

Returning A File As An Attachment From JSP

JohnMunsch (John Munsch) — Thu, 25 May 2006 01:04:59 GMT

// This is truly a snippet. It's a small piece of code you use
// within a JSP file to make sure that the file you are
// returning is not interpreted by the browser. You use this
// when you want to return a TXT file, JPG or other file that
// the browser might open on its own rather than offer a
// dialog to the user so it can be saved.
//
// Note: In this example I'm returning a text file so I set
// the MIME type of the response to text/plain, but you need
// to make sure it matches the type of data you are returning.



response.setContentType("text/plain");



response.setHeader("Content-Disposition", "attachment; filename=\"test.txt\"");

Headers to write an XML from JSP

dirtyaffairs (Dirty Affairs) — Thu, 21 Apr 2005 21:59:19 GMT



<%

    response.setContentType("text/xml");

    response.setHeader("Cache-Control", "no-cache");

    response.setHeader("pragma","no-cache");

%>