Re: Eliminate conditions in JSP

From:
=?ISO-8859-1?Q?Arne_Vajh=F8j?= <arne@vajhoej.dk>
Newsgroups:
comp.lang.java.programmer
Date:
Thu, 15 Nov 2007 19:47:13 -0500
Message-ID:
<473ce890$0$90267$14726298@news.sunsite.dk>
teser3@hotmail.com wrote:

I have a Servlet that checks for information and if there is an issue
it forwards the message to presentation page (JSP). Now I want to stop
using conditions in scriptlets in the JSP. Please advise how I can do
it in this situation in my Tomcat 4.1.27 container:

Servlet that forwards to JSP:

...
String gotopage = "";
if(mydata == 1)
{
     gotopage = /"pager.jsp?mymessage=err";
}
else if(mydata == 34
{
   gotopage = /"pager.jsp?mymessage=duper";
}
else
{
    gotopage = /"pager.jsp?mymessage=proc";
}

RequestDispatcher dispatcher =
  getServletContext().getRequestDispatcher(gotopage);
dispatcher.forward(request, response);
...

JSP

<%
String mymessage = request.getParameter("mymessage")

if(mymessage.equals("err"))
{
     out.println("Error on the page");
}
else if(mymessage.equals("dup"))
{
     out.println("Duplicate issue.");
}
else if(mymessage.equals("proc"))
{
     out.println("Process message issue");
}
%>


Why not have the servlet store the long text in the request object
and have the JSP simply display it with a <%=whatever%> ?

Arne

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