[jboss-user] [JBoss Portal] - Re: How to get started?? Which jars for needed for simple po

[nadley]

Well, you're right - I never declared that variable because I thought it should be available for every portlet. Isn't it possible to include a certain jar so that I can access "portletSession"? I've seen "portletSession" in various sample codes... 

Here is my JSP: 


  | <%@ taglib uri="http://java.sun.com/portlet" prefix="portlet" %>
  |  
  | <portlet:defineObjects/>
  | 
  | <div align="center">
  | <%! 
  | 	java.util.Random random = new java.util.Random(); 
  | 	int toGuess; 
  | 	int guessedNumber;
  | 	long start;
  | 	long end; 
  | 	long minuten;
  | 	long sekunden;
  | %>
  | <%  
  | 	String value = renderRequest.getParameter("guessedNumber"); 
  | 
  | 	java.util.List <String> list = (java.util.List <String>)portletSession.getAttribute("bereitsGeraten"); 
  | 	if (portletSession.getAttribute("toGuess")!=null){
  | 		toGuess = (Integer) portletSession.getAttribute("toGuess"); 
  | 	}else {
  | 		toGuess = random.nextInt(1000);
  | 	}
  | 	if (value != null){
  | 		if (value.equals("neustart")){
  | 			list = new java.util.ArrayList <String> (); 
  | 			guessedNumber = -1;
  | 			toGuess = random.nextInt(1000);
  | 		}
  | 		else {
  | 			if (list == null){
  | 				list = new java.util.ArrayList<String>();  
  | 			}
  | 			list.add(value); 
  | 			try {
  | 				guessedNumber = Integer.parseInt(value);
  | 			}catch (Exception e){
  | 				out.print("Fehler beim Lesen der eingegebenen Zahl!"); 
  | 			}
  | 		}
  | 	}
  | 
  | 	portletSession.setAttribute("bereitsGeraten",list); 
  | 	portletSession.setAttribute("toGuess",toGuess); 
  | %> 
  | <form action="<portlet:actionURL><portlet:param name="page" value="mainview"/></portlet:actionURL>" method="POST">
  | 	
  | <%	if (guessedNumber == toGuess){ 
  | 		end = new java.util.Date().getTime();
  | 		minuten = (end-start)/(60*1000);
  | 		sekunden = ((end-start)%(60*1000))/ 1000;
  | %>
  | 		Super! Das war die gesuchte Zahl!!! <br>
  | 		Sie haben das Ergebnis in <%=minuten%> Minuten und <%=sekunden%>
  | 		Sekunden beim <%= list.size()%>. Versuch gefunden! <br>
  | 		<input type=hidden name=guessedNumber value="neustart">
  | 		<input type=submit value=Neustart>
  | <%  }else {
  | 		if ((value == null)||(value.equals("neustart"))) { 
  | 			start = new java.util.Date().getTime();%>
  | 			Hallo! <br> Bitte eine Zahl zwischen 0 und 1000 erraten!
  | <%		} else if (guessedNumber > toGuess) { %>
  | 			Die zu erratende Zahl ist kleiner! Noch ein Versuch:
  | 	<%  } else if (guessedNumber < toGuess) { %>
  | 			Die zu erratende Zahl ist größer! Noch ein Versuch: 
  | 	<%  } %>
  | 		<br>
  | 		<input type="text" name="guessedNumber">
  | 		<input type="submit" value="raten">
  | 		<br><br>
  | 		Bereits geratene Zahlen: <%=list %>
  | 	<%} %>
  | 
  | </form>
  | </div>
  | 

It's a little game to guess a random number and it worked fine as a jsp-only application. 

View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4228175#4228175

Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&p=4228175