Problem in JSP script (print cannot be resolved)

Can you check attach code and attach file run result and where the problem and how can solve it ?
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*" errorPage="" %>
<%
	String vr_RegionId = "20";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
 
<body>
<script language="JavaScript">
  if (<%= vr_RegionId %>  == "1")
  {
	  <%
	  print.out(vr_RegionId);
	  %>
   }
</script>
</body>
</html>

Open in new window

Result-TestJSP.txt
bworldAsked:
Who is Participating?

Improve company productivity with a Business Account.Sign Up

x
 
Ryan ChongConnect With a Mentor Commented:
I always tested my solution before I posted it.


I suggest you may rename your page and try again (to ensure it's not from browser cache)

from example below, i wil get "20" returned on the page:

test2.jsp:
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*" errorPage="" %>
<%
        String vr_RegionId = "20";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
 
<body>
<script language="JavaScript">
  if (<%= vr_RegionId %>  == "20")
  {
        document.write(<%= vr_RegionId%>);
          //<%
          //print.out(vr_RegionId);
          //%>
   }
</script>
</body>
</html>

Open in new window

0
 
Ryan ChongCommented:
use

out.print(vr_RegionId);

instead.
0
 
Ryan ChongCommented:
by the way, you can always use javascript's document.write to write the output to HTML...

like:

>>

<script language="javascript">

document.write(<%=vr_RegionId%>);

</script>
0
Get expert help—faster!

Need expert help—fast? Use the Help Bell for personalized assistance getting answers to your important questions.

 
bworldAuthor Commented:
Hello ryancys

I change the code and I use your example but I also modify if statement as follow: -
  if (<%= vr_RegionId %>  == "20")
because I want to see the result but when I run this code after modification there no result only empty page.

Check and test attach code please and where the wrong in code to display the result.

I use Tomcat 5.5 as a web application
<%@ page contentType="text/html; charset=iso-8859-1" language="java" import="java.sql.*" errorPage="" %>
<%
	String vr_RegionId = "20";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
 
<body>
<script language="JavaScript">
  if (<%= vr_RegionId %>  == "20")
  {
  	document.wrirte(<%= vr_RegionId%>);
	  //<%
	  //print.out(vr_RegionId);
	  //%>
   }
</script>
</body>
</html>

Open in new window

0
 
Ryan ChongCommented:
a typo there...

document.wrirte(<%= vr_RegionId%>);

should be as:

document.write(<%= vr_RegionId%>);
0
 
bworldAuthor Commented:
I change it but still no result also please run script on your machine
0
 
Ryan ChongCommented:
>>I change it but still no result also please run script on your machine

try clear your browser cache and try again, alternatively delete the compiled servlets on the "work" folder on your tomcat directory, because it works at my end.

cheers
0
 
Ryan ChongCommented:
anyway, always use:

if ("<%= vr_RegionId %>"  == "20")

instead of:

if (<%= vr_RegionId %>  == "20")


for better handling
0
 
bworldAuthor Commented:
I do every thing but still display for me blank page
0
 
Ryan ChongCommented:
Are you using IE?

try this to debug error in IE:

1. go to Menu Tools > Internet Options > Advanced Tab, make sure the "Show friendly HTTP error messages" is unchecked.


And I suggest you made all necessary changes, restart your Tomcat, and try again.
0
 
Ryan ChongCommented:
finally, if using IE, close it and try start a new IE to test...
0
 
bworldAuthor Commented:
I do every thing
please run this code in your machine
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.