Using JSP variable inside Java Script's alert function.

Question

Hi Gurus,
We are trying to use alert function with one of the string variables populated inside JSP code, but its not working.
Here is the code snippet, please advice.
     <%
     oracle.apps.qot.util.RequestCtx.log("qotcustom.jsp",AOLMessageManager.getMessageSt(QotUtil.QOT_APPS_CODE, "XDPYY_DISC"));
     %>
     var alert_text="<%=AOLMessageManager.getMessageSt(QotUtil.QOT_APPS_CODE, "XDPYY_DISC")%>";
     alert(alert_text);
     Here in the first line we are using API to get text message defined in database, the line is getting executed properly and we could see output text message in debug log file, after this in the 4th line, we are assiging this string output of API to java script variable alert_text and further using alert function with the variable alert_text as argument. But alert function is failing, no errors are thown in debug log file.
Please advice whether we are doing any thing wrong.
Thanks in advance.

Answer 1

What pgeuens means is that you can't mix javascript and jsp/java code in this way.
ALL of the jsp/java code gets executed at the server end.
This produces an HTML page (with embedded javascript) which gets sent to the client.
The client then runs javascript code in response to events (onLoad, onClick, onChange etc etc)
So in this case, the jsp:forward will always be executed, because as far as the server is concerned, the javascript is just template text.
If you WANT to do a conditional forwarding on the server side you do it in java ie (horribly using scriptlet)
<%
if (testCondition){
%>
  <jsp:forward>
%<
%>Or if you want to test what the client has entered client side, all you can do is submit the form, or navigate to a URL
<script>
function test()
if(document.f.htemp.value=="true")
alert("jus");
else
var s=document.f.htemp.value;
alert(s);
document.f1.action="success.jsp";
document.f.submit();
</script>You cannot run JSP code based on your javascript code.
Java. Javascript. Not the same thing.
Hope this helps,
evnafets