Jsp scriplet conditional on javascript

I discovered something quirky that seems to work and I wanted to know if anyone else has run
across this.
I have a jsp page (profile.jsp) that includes a jsp
ex: <SCRIPT SRC="terminate.jsp"></SCRIPT>
later in the profile.jsp page I call a function in terminate.jsp
ex: onClick=killIt();
The killIt() javascript function is:
function killIt()
<% session.invalidate(); %>
top.close();
It seems that the session.invalidate only gets execute when the killIt() javascript function gets called.
Has anyone run across this?
Is this an acceptable thing to do?

I think what is happening is that your session is invalidated when the browser goes back to the web server to load terminate,jsp. (because of the SRC attribute in the SCRIPT tag). It has nothing to do with the onclick.

Similar Messages

Passing vars...JSP resolves faster than javascript - is there a workaround?

HI
The variable/value ("fieldA") that I want to pass from "frame1.jsp" to "frame2.jsp is actually a variable defined javascript function "getTest()" in "frame1.jsp".
I want to pass "fieldA" from "frame1.jsp" to "frame2.jsp"..
"frame2" is initially "blank.html. In the "getTest()" function I use (parent.frames[2].location = "frame2.jsp";) to create frame2.jsp inside of "frame2"
I generat a "post" request (from "frame1.jsp") assigning "fieldA" to a hidden form field ("fldA") in "frame2", and then display the value of "fldA" using "<%= request.getParameter("fldA") %>"...
But the value of hidden form field - "fldA" - is initially "null" because when "frame2.jsp" page is creatd, the JSP scriplets resolve before the javascript "getData" function can resolve. (if I click to post frame2.jsp again, the value shows - but, that's just because the frame2.jsp now exists.)
Is there a work around?.... Or, do I need to have "frame1.jsp" call a servlet to pass "fieldA" ????
Appreciate ANY help on this!!!!
(NOTE -- actually, my real world need will be to assign the value to a Custom Tag parameter, rather than simply display - and that is why I need to get this to work!)
THE WORKING CODE IS BELOW. . . (AGAIN ANY HELP IS APPRECIATED!)
*****frame0.html*****
<%@ page language="java" import="java.io.*, java.util.*" errorPage="error.jsp" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>frame0</TITLE>
</HEAD>
<FRAMESET FRAMEBORDER="2" ROWS="20%,80%">
<FRAME SRC="frame0.html" NAME="frame0">
<FRAMESET FRAMEBORDER="2" COLS="20%,80%">
<FRAME SRC=frame1.jsp?fieldX=<%= session.getParameter("fieldX") %> NAME="frame1">
<FRAME SRC=frame2.jsp?fieldX=<%= session.getParameter("fieldX") %> NAME="frame2">
</FRAMESET>
</FRAMESET>
</HTML>
*****frame1.jsp*****
<%@ page language="java" import="java.io.*, java.util.*" errorPage="error.jsp" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
     <head><title>frame1</title>
     <link rel="stylesheet" type="text/css" href="./standard.css">
          <script LANGUAGE="JavaScript">
               parent.frames[2].location = "blank.html";
               function getTest()
                    var fieldA = "HO THERE!!!"
                    <%
                         session.putValue("fieldB", "HEY THERE!!!");
                    %>
                    parent.frames[2].location = "frame2.jsp";
                    parent.frames[2].getData(fieldA);
                    return;
</script>
     </head>
     <body bgcolor="#FFFFFF" text="#000000">
          <p>
          <h2>
          In frame1.jsp, the value in fieldA is: <%= session.getAttribute("fieldA") %>
          <h2>
          In frame1.jsp, the value in fieldB is: <%= session.getAttribute("fieldB") %>
          <p>
          <form name="reportRange">
               <center>
                    <fieldset style="padding: 0.5em" name="customer_box">
                    <table cellpadding="0" cellspacing="0" border="0">
                         <tr class="drophead">
                              <td valign="top" height="0" ><span class="drophead">
                                   test submit
                              </td>
                         </tr>
                    </table>
                    </fieldset>
               </center>
          </form>
     </body>
</html>
*****frame2.html*****
<%@ page language="java" import="java.io.*, java.util.*" errorPage="error.jsp" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
     <head>
     <title>frame2</title>
          <script LANGUAGE="JavaScript">
               function getData(fieldA)
               document.pageData.fldA.value = fieldA;
                    document.pageData.submit();
          </script>
     </head>
     <body>
          <p>
          <h2>
          In frame2.jsp, the value of fieldA: <%= request.getParameter("fldA") %>
     <h2>
          In frame2.jsp, the value of fieldB: <%= session.getValue("fieldB") %>
          <p>
          <div id="HiddenForm">
               <form name="pageData" method="post" action="frame2.jsp" target="_self">
                    <input type="hidden" name="fldA" value="empty">
               </form>
          </div>
     </body>
</html>
*****blank.html*****
<html>
<head>
<title>blank page</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="stylesheet" href="globalview.css" type="text/css">
</head>
<body bgcolor="#FFFFFF" text="#000000">
</body>
</html>
*****error.jsp*****
<%-- error.jsp --%>
<%@ page language="java" isErrorPage="true"%>
<html>
<head>
     <title>error page</title>
</head>
<body>
<h2>Error Encountered: </h2>
<%= exception.toString() %><BR>
<br>
details...<%= exception.getMessage() %>
</body>
</html>

So where to start...
1) session does not have a method "getParameter()" (frame0.jsp) so I don't know how you can get this to work.
2) When you call "javascript:getTest()" the scriptlet is not run again. It's serverside so it is execute on the server then any return data is placed where you have the scriptlet.
3) The scriptlets in "frame0.html" will not work as the page is declared as html.
4) Once again jsp scriptlets (including TagLibraries) are server side components. Any values passed to them should be via a request or session setting on the server side.
For example:
Say we have a tag "myWorkingTag" that outputs the value we assign to "valToUse" on the page.
original jsp document (page.jsp):
<%@ taglib uri="mytags" prefix="mine" %>
<html>
<body>
<mine:myWorkingTag valToUse="xyz"/>
</body>
</html>
The web browser view of page.jsp:
<html>
<body>
xyz
</body>
</html>
You can assign the "valToUse" attribute using <%="xyz"%> (or session.getAttribute() or request.getParameter()) on the server side but ultimately you need to send the value to the server and recompile the page.
I've made some changes to your code (in bold) which is a minor fix but not a solution to your overall objective.
***** frame0.jsp *****
<HTML>
<HEAD>
<TITLE>frame0</TITLE>
</HEAD>
<FRAMESET ROWS="20%,80%">
<FRAME SRC="frame0.jsp" NAME="frame0">
<FRAMESET COLS="20%,80%">
<FRAME SRC=tFrame1.jsp?fieldX=<%= request.getParameter("fieldX") %> NAME="frame1">
<FRAME SRC=tFrame2.jsp?fieldX=<%= request.getParameter("fieldX") %> NAME="frame2">
</FRAMESET>
</FRAMESET>
</HTML>
***** frame1.jsp *****
<%@ page language="java" import="java.io.*, java.util.*" errorPage="error.jsp" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head><title>frame1</title>
<link rel="stylesheet" type="text/css" href="./standard.css">
<script LANGUAGE="JavaScript">
//parent.frames[2].location = "blank.html";
function getTest()
var fieldA = "HO THERE!!!"
<%session.setAttribute("fieldB", "HEY THERE!!!");%>
parent.frames[2].location = "frame2.jsp";
parent.frames[2].getData(fieldA);
return;
</script>
</head>
<body bgcolor="#FFFFFF" text="#000000">
<p>
<h2>
In frame1.jsp, the value in fieldA is: <%= session.getAttribute("fieldA") %>
<h2>
In frame1.jsp, the value in fieldB is: <%= session.getAttribute("fieldB") %>
<p>
<form name="reportRange">
<center>
<fieldset style="padding: 0.5em" name="customer_box">
<table cellpadding="0" cellspacing="0" border="0">
<tr class="drophead">
<td valign="top" height="0" ><span class="drophead">
test submit
</td>
</tr>
</table>
</fieldset>
</center>
</form>
</body>
</html>
*****frame2.jsp*****
<%@ page language="java" import="java.io.*, java.util.*" errorPage="error.jsp" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>frame2</title>
<script LANGUAGE="JavaScript">
function getData(fieldA)
document.pageData.fldA.value = fieldA;
document.pageData.submit();
</script>
</head>
<body>
<%if(request.getParameter("fldA")!=null){
//this section doesn't make sense, your using the same value twice!?!%>
<p>
<h2>
In frame2.jsp, the value of fieldA: <%= request.getParameter("fldA")
%>
<h2>
In frame2.jsp, the value of fieldB: <%= session.getAttribute("fieldB") %>
<p>
<%}%>
<div id="HiddenForm">
<form name="pageData" method="post" action="frame2.jsp" target="_self">
<input type="hidden" name="fldA" value="empty">
</form>
</div>
</body>
</html>
***** blank.html (obsolete) *****
***** error.jsp unchanged *****
What you should be aiming for is either:
A) Using the above code, send all your required parameters to the form in frame2.jsp and use these parameters to configure the page. As you can see I added an "if(request.getParameter("fldA")!=null)" block to prevent any code from being execute until you send the data.
B) In frame1.jsp, submit it to itself with all the parameters you need and add the objects to the session. When frame1.jsp returns the page to the browser, get it to call a javascript function (<body onload='...'>") to reload frame2.jsp and collect the objects/variables from the session.
Just remember Javascript and Java in JSP's don't exist in the same "world" so to speak. They have to cross a bridge to communicate, the bridge being the action of the form.
Cheers,
Anthony

I need JSP SCRIPLET report help!

Here's what we are doing.
We are using a JSP report built in report builder (10gR2,win xp pro), and modifying the layout in the web builder part of the tool that generates the JSP.
These reports that are run, end up being exported to EXCEL via the MS Windows export function in Internet Explorer.
I have managed to write the code I need into a Javascript - which works great - EXCEPT when we export to EXCEL, the MS process does not run JavaScript - so we do not get what is on the screen. So I need this code converted to a JSP scriplet, so it will work when exported to excel.
here is the javascript I came up with. Basically it says if the string length of the HTML code generated from the reports tag is > 51, then give me that same html inside of a <tr> <td> </td> </tr>, else do nothing (do not produce a table row).
<script type = "text/javascript" language="JavaScript">
if ( '<td <rw:id id="HFpltitlesname87" breakLevel="RGpltitlecode871" asArray="no"/> class="OraRowHeader"> <rw:field id="Fpltitlesname87" src="pl_title_sname" breakLevel="RGpltitlecode871" breakValue="" nullValue=""> F_pl_title_sname </rw:field> </td> '.length > 51 )
document.writeln ( '<tr>');
document.writeln ('<td <rw:id id="HFpltitlesname87" breakLevel="RGpltitlecode871" asArray="no"/> class="OraRowHeader"> <rw:field id="Fpltitlesname87" src="pl_title_sname" breakLevel="RGpltitlecode871" breakValue="" nullValue=""> F_pl_title_sname </rw:field> </td> ' );
document.writeln ( '</tr>' );
</script>
During JSP compile time, the <rw:id tag gets translated to the value as expected. I need to come up with something at compile time via a scriplet - so it will be pure HTML and will import into EXCEL.
This is cross posted in Reports.

I found a solution.
No JavaScript or scriplets needed.
I moved the report tag to act like a Group Above layout vs a Group Left.
We had chosen Group Left in the layout since it was the lesser of 2 evils for out column headers.

How to get values from a table(in jsp) for validation using javascript.

hi,
this is praveen,pls tell me the procedure to get values from a table(in jsp) for validation using javascript.
thank you in advance.

Yes i did try the same ..
BEGIN
select PROD_tYPE into :P185_OFF_CITY from
magcrm_setup where atype = 'CITY' ;
:p185_OFF_CITY := 'XXX';
insert into mtest values ('inside foolter');
END;
When i checked the mtest table it shos me the row inserted...
inside foolter .. Now this means everything did get execute properly
But still the vallue of off_city is null or emtpy...
i check the filed and still its empty..
while mtest had those records..seems like some process is cleaining the values...but cant see such process...
a bit confused..here..I tried on Load after footer...
tried chaning the squence number of process ..but still it doesnt help
some how the session variables gets changed...and it is changed to empty
Edited by: pauljohny on Jan 3, 2012 2:01 AM
Edited by: pauljohny on Jan 3, 2012 2:03 AM

How can I access JSP variables from a JavaScript function in a JSP page?

Respected sir
How can I access JSP variables from a JavaScript function in a JSP page?
Thanx

You may be get some help from the code below.
<%
    String str="str";
%>
<script>
    function accessVar(){
       var varStr='<%=str%>';
       alert(varStr);// here will diplay 'str'
</script>

Accessing JSP variables in Included Javascript

Hey All,
I want to hide my javascript to be viewed on the client browser.
I know we can do that with the javascript include ,But i am using JSP variables in
Included javascript.I can't access those variables any more.
Does anybody know any workarround.
Thanx
Vijay

Hi Vijay,
I am also facing the same problem of hiding javascript in the client browser. My javascript variables are getting initialised on the fly using JSP. Since JSP is compiled on the server side, one can't compile .js file on the client side.
What u can do is to divide your page into frames with
<frameset rows="100%,0%">. Now put your form hidden fields or the .js file in frame 2 which is not visible to the user and then assign your jsp variables in the frame2 html/jsp page. Now access your variables from frame2 in frame1 using
var i = parent.frames[1].document.forms[0].elements[0].value
Assuming that there is 1 form and 1 hidden field in frame2 html/jsp page.
I hope u get the logic rite....
I had done it for application but problem is that our users are real MORONS and they keep doing ctrl+F5 which takes them to the Indexpage.
If you get some other solution then please mail it to my email address
[email protected]
Regards
Vimlesh

JSP response into a Javascript code

Suppose I have a form that I submit, and its action is set to a JSP page that returns a series of elements <option>, for example:
    <option>2005</option>
    <option>2006</option>
Is it possible to GET that JSP response, inside the JavaScript code?
Or should I better state, inside the JSP code, to return ONLY the numbers and then I get it on the JavaScript and use the .add() funtion to add the item to a <select> ?
How do I save that response inside the JavaScript?
For example, I am trying with this Javascript function that handles the changes on a drop-down list:
function clickedOnPType(lista)
document.form1.action = "searchAvailableYears.jsp?pType=" + txtPType;}
document.form1.submit();
}...And I am getting, in return, a series of <option> with the correct data...
Thanking you in advance,
MMS

Oh hello... in one of my 1000 searches I found that
post days ago and I was already trying with your
code, but I was getting several errors like
"undefined is null or not an object" (in IE),
"xmlhttp.responseXML has no properties" (in
Firefox).... Well one thing i wanted to discuss here is is wat properties does in general a XmlHttpRequest Object contains
checkout the below interface which gives a clear understanding of the Object member properties.
interface XMLHttpRequest {
attribute EventListener   onreadystatechange;
readonly attribute unsigned short readyState;
void open(in DOMString method, in DOMString url);
void open(in DOMString method, in DOMString url, in boolean async);
void open(in DOMString method, in DOMString url, in boolean async, in DOMString user);
void open(in DOMString method, in DOMString url, in boolean async, in DOMString user, in DOMString password);
void setRequestHeader(in DOMString header, in DOMString value);
void send();
void send(in DOMString data);
void send(in Document data);
void abort();
DOMString getAllResponseHeaders();
DOMString getResponseHeader(in DOMString header);
readonly attribute DOMString responseText;
readonly attribute Document   responseXML;
readonly attribute unsigned short status;
readonly attribute DOMString statusText;
};therefore as you can see XmlHttpRequest.reponseXML returns a Document Object which has below set of properties.
http://www.w3schools.com/dom/dom_document.asp
http://www.javascriptkit.com/domref/documentproperties.shtml
and as said earlier one can send AJAX response in three ways
1).Plain text(with comma seperated values maybe): Which we can collect using XmlHttpRequest.responseText 2).XML: @ client side XmlHttpRequest.reponseXML create a DOM Object using which one can parse it get values
of attributes and values of different tags and then update the view accordingly.
3).JSON(Javascript Object Notation): It is a bit complicated thing to discuss at this moment
however it uses the first property(Plain text) and then
uses set of libraries to parse and update the view.
checkout below links to understand it
http://www.ibm.com/developerworks/library/j-ajax2/
http://oss.metaparadigm.com/jsonrpc/
> function handleOnChange(ddl)
>
var ddlIndex = ddl.selectedIndex;
var ddlText = ddl[ddlIndex].text;
var frmSelect = document.forms["form1"];
var frmSelectElem = frmSelect.elements;
if(ddl.name="pType")
     txtYear = "";
txtDay = "";
          txtTime = "";
          unblock(document.form1.year);
          block(document.form1.day);
          block(document.form1.time1);
     laProxLista = frmSelectElem["year"];
if (ddl.options[ddl.selectedIndex].text !=
txtPType = ddl.options[ddl.selectedIndex].text;
else if(ddl.name="year")
     txtDay="";
     txtTime="";
          unblock(document.form1.day);
          block(document.form1.time1);
laProxLista = frmSelectElem["day"];
f (ddl.options[lista.selectedIndex].text != "---")
txtYear = ddl.options[lista.selectedIndex].text;
else if(ddl.name="day")
{          txtTime = "";
          unblock(document.form1.time1);
laProxLista = frmSelectElem["time1"];
(ddl.options[ddl.selectedIndex].text != "---")
txtDay = ddl.options[ddl.selectedIndex].text;
else //time1
laProxLista = null;
if (ddl.options[ddl.selectedIndex].text != "---")
txtTime1 = ddl.options[ddl.selectedIndex].text;
if ( txtPType != "---")
xmlhttp = null
// code for initializing XmlHttpRequest
Object On Browsers like Mozilla, etc.
if (window.XMLHttpRequest){
xmlhttp = new XMLHttpRequest()
// code for initializing XmlHttpRequest
Object On Browsers like IE
else if (window.ActiveXObject) {
xmlhttp = new ActiveXObject("Microsoft.XMLHTTP")
if (xmlhttp != null)
if(ddl.name = "pType")
// Setting the JSP/Servlet url to get
XmlData
url = "searchAvailableYears.jsp?pType="
+ txtPType;
               else if(ddl.name = "year")
url = "searchAvailableDOY.jsp?pType=" + txtPType
PType + "&year=" + txtYear;
               else(ddl.name = "day")
url = "searchAvailableTimes.jsp?pType=" +
e=" + txtPType + "&year=" + txtYear + "&day=" +
txtDay;
xmlhttp.onreadystatechange =
handleHttpResponse;
// Open the Request by passing Type of
Request & CGI URL
xmlhttp.open("GET",url,true);
// Sending URL Encoded Data
xmlhttp.send(null);
else{
// Only Broswers like IE 5.0,Mozilla & all other
browser which support XML data Supports AJAX
Technology
// In the Below case it looks as if the
browser is not compatiable
alert("Your browser does not support
XMLHTTP.")
} //else
} //if chosen
//function
     //----------------------------Well as far as i can see i do not have any issues with it because your code looks
preety much involved with your business logic but one thing i would like to reconfim
here is the variable "xmlhttp" a global one.
if no declare xmlhttp variable as a global variable.
<script language="javascript">
var xmlhttp;
function handleOnChange(ddl){
function verifyReadyState(obj){
function handleHttpResponse() {
</script>
> function verifyReadyState(obj)
if(obj.readyState == 4){
if(obj.status == 200){
if(obj.responseXML != null)
return true;
else
return false;
else{
return false;
} else return false;
}I believe,this is preety much it.
> function handleHttpResponse() [/b]
if(verifyReadyState(xmlhttp) == true)
//-----------HERE!! ---- I GET "UNDEFINED" IN THE
DIALOG BOX
//------- BELOW THE CODE LINE....---
var response = xmlhttp.responseXML.responseText;
alert(response);
it is obvious that you would get Undefined here as responseText is not a property of Document Object or to be more specific to the Object what xmlhttp.responseXML returns.
you might have to use that as alert(xmlhttp.responseText);
and coming back to parsing the XML reponse you have got from the server we need to use
var response = xmlhttp.responseXML.documentElement; property for it...
and if you put as a alert message it has to give you an Output like"Object"
alert(response);
if that doesn't the browser version which you are using may not support XML properly.
var response = xmlhttp.responseXML.documentElement;
removeItems(laProxLista);
var x = response.getElementsByTagName("option")
var val
var tex
var newOption
              for(var i = 0;i < x.length; i++){
                 newOption = document.createElement("OPTION")
                 var er
                 // Checking for the tag which holds the value of the Drop-Down combo element
                 val = x.getElementsByTagName("value")
try{
// Assigning the value to a Drop-Down Set Element
newOption.value = val[0].firstChild.data
} catch(er){
// Checking for the tag which holds the Text of the Drop-Down combo element
tex = x[i].getElementsByTagName("text")
try{
// Assigning the Text to a Drop-Down Set Element
newOption.text = tex[0].firstChild.data
} catch(er){
// Adding the Set Element to the Drop-Down
laProxList.add(newOption);
here i'm assuming that i'm sending a xml reponse of format something below.
<?xml version="1.0" encoding="ISO-8859-1" ?>
<drop-down>
   <option>
        <value>1</value>
        <text>label1</text>
   </option>
   <option>
        <value>2</value>
        <text>label2</text>
   </option>
   <option>
        <value>3</value>
        <text>label3</text>
   </option>
</drop-down>and i'm trying to update both option's value and label which would be something like
<select >
<option value="1">label1</option>
<option value="2">label2</option>
<option value="3">label3</option>
<option value="4">label4</option>
</select>else where if you are interested in getting a format like the one below
<select >
<option>label1</option>
<option>label2</option>
<option>label3</option>
<option>label4</option>
</select> try the below snippet
var response = xmlhttp.responseXML.getElementsByTagName("text");
var length = response.length;
var newOption
for(var i =0 ; i < length;i++){
   newOption = this.document.createElement("OPTION");
   newOption.text = response.childNodes[0].nodeValue;
// or newOption.text = response[i].firstChild.data
laProxList.add(newOption);
Another thing...
I have tried to set the content type inside the JSP
to
response.setContentType("text/html");
AND to
response.setContentType("text/xml");
but none of the above is getting me results......use of response.setContentType("text/xml"); is more appropriate here.. as you are outputting XML or a plain text here...
make sure you set the reponse headers in the below fashoin while outputting the results....
response.setContentType("text/xml");
response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 1);
response.setDateHeader("max-age", 0); and if you are serious about implementing AJAX i would advice you start learn basics of XmlHttpRequest Object and more about DOM parsing is being implemented using javascript.
http://www.w3.org/TR/XMLHttpRequest/#xmlhttprequest0
http://www.jibbering.com/2002/4/httprequest.html
http://java.sun.com/developer/technicalArticles/J2EE/AJAX/
http://developer.apple.com/internet/webcontent/xmlhttpreq.html
http://www.javascriptkit.com/domref/documentproperties.shtml
and then go about trying different means of achieving them using simpler and cool frameworks
like DWR,dojo,Prototype,GWT,Jmaki,Back Base 4 Struts,Back Base 4 JSF....etc and
others frameworks like Tomahawk,Ajax4Jsf,ADF Faces,ICE FACES and many others which work with JSF.
Please Refer
http://swik.net/Java+Ajax?popular
http://getahead.org/blog/joe/2006/09/27/most_popular_java_ajax_frameworks.html
Hope that might help :)
and finally an advice before implementing anything specfic API which may be related to any technologies (JAVA,javascript,VB,C++...) always refer to API documentation first which always gives you an Idea of implementing it.
Implementing bad examples posted by people(even me for that matter) directly doesn't make much sense as that would always lands you in trouble.
and especially when it is more specific to XmlHttpRequest always make habit of refering
specific Browser site to know more about why specific Object or its property it not working 4i
IE 6+: http://msdn2.microsoft.com/en-us/library/ms535874.aspx
MOZILLA: http://developer.mozilla.org/en/docs/XMLHttpRequest
Safari: http://developer.apple.com/internet/webcontent/xmlhttpreq.html
Opera 9+: http://www.opera.com/docs/specs/opera9/xhr/
Hope there are no hard issues on this...
REGARDS,
RaHuL

Calling a jsp:useBean method in Javascript

Hi,
I want to call a jsp:useBean method in Javascript. Like:-
<jsp:useBean id="StringEscapeUtils" class="org.apache.commons.lang.StringEscapeUtils" scope="application" />
<script>
var accountNumber = '<c:out value="${ACCOUNT_NUMBER}" />';
var accountNumberWithSingleQuote = "<%=StringEscapeUtils.escapeJavascriptString('<%=accountNumber%>')%>"; // not working
alert(accountNumberWithSingleQuote );
</script>
Here var accountNumberWithSingleQuote = "<%=StringEscapeUtils.escapeJavascriptString('<%=accountNumber%>')%>"; // not working
Here how to add the parameter accountNumber in the escapeJavascriptString() method?
Is it possible can we do it without scriptlet in JS? Pls. let me know your opinion.
thanks.

797836 wrote:
Here var accountNumberWithSingleQuote = "<%=StringEscapeUtils.escapeJavascriptString('<%=accountNumber%>')%>"; // not working
The above line will not work, because you are using scriptlet within a scriptlet.
accountNumber is a javascript variable, so there is no way to use javascript variable in scriptlets.
Here how to add the parameter accountNumber in the escapeJavascriptString() method?
Is it possible can we do it without scriptlet in JS? Pls. let me know your opinion.
You are assigning a value to accountNumber variable using springs variable, i.e ACCOUNT_NUMBER.
So why don't you directly use the ACCOUNT_NUMBER variable which is a java scriptlet.
Below is the url will guide you for the same:
http://www.avajava.com/tutorials/lessons/how-do-i-access-a-jstl-variable-in-a-scriptlet.html

Jsp+scriplet

Am using jsp and display tag.
Version am using is:
<jsp:root version="1.2" xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:display="urn:jsptld:http://displaytag.sf.net/el" xmlns:c="urn:jsptld:http://java.sun.com/jstl/core">
Here am using displaytag to display table. Am using C:forEach to iterate through each column and display it. Using c:out for displaying it along with checkbox. Till here everything works fine.
But when i try to use Scriplet am getting error.
Error:
could no process the requestorg.apache.jasper.JasperException: /web/viewdata.jsp(19,2) The content of elements must consist of well-formed character data or markup.
Can anyone help me.. Thanks in advance

HEY THANKS.. HERE IS THE CODE..
I tried use jsp:scriplet but yet there is an error..
Error is:
could no process the requestorg.apache.jasper.JasperException: /web/viewdata.jsp(19,15) Invalid standard action: scriplet
<jsp:root version="1.2" xmlns:jsp="http://java.sun.com/JSP/Page" xmlns:display="urn:jsptld:http://displaytag.sf.net/el" xmlns:c="urn:jsptld:http://java.sun.com/jstl/core">
<jsp:directive.page contentType="text/html; charset=UTF-8" />
<html>
          <link rel="stylesheet" href="../css/displaytag.css" type="text/css" />
     <link rel="stylesheet" href="../css/maven-base.css" type="text/css" />
          <link rel="stylesheet" href="../css/maven-theme.css" type="text/css" />
          <link rel="stylesheet" href="../css/site.css" type="text/css" />
          <link rel="stylesheet" href="../css/screen.css" type="text/css" />
          <head>
          </head>
          <body>
          <c:forEach var="obj" items="${col}">
               <tr>
               <td>     <input type="checkbox" name="initCheckBoxMulti" value="${obj.property}" class="button"/> <c:out value= "${obj.property}" />
               </td>
               <td></td>
               </tr>
          </c:forEach>
     <display:table name="sessionScope.results.rows" class="reportviewer" export="true" id="row" defaultsort="1" defaultorder="ascending"
pagesize="40" cellspacing="0" decorator="org.displaytag.decorator.TotalTableDecorator" >
          <display:setProperty name="paging.banner.placement" value="top" />
     <c:forEach var="obj" items="${col}">
               <c:choose>
          <c:when test='${obj.property== "Banner"}'>
                    <display:column property="${obj.property}" sortable="true" group="1"/>
                    </c:when>
          <c:when test='${obj.property== "Campaign"}'>
                    <display:column property="${obj.property}" sortable="true" group="1"/>
                    </c:when>
          <c:when test='${obj.property== "Advertiser"}'>
                    <display:column property="${obj.property}" sortable="true" group="1"/>
                    </c:when>
                    <c:otherwise>
                         <display:column property="${obj.property}" sortable="true"/>
               </c:otherwise>
                    <c:otherwise>
                         <display:column property="${obj.property}" sortable="true"/>
               </c:otherwise>
                    <c:otherwise>
                         <display:column property="${obj.property}" sortable="true"/>
               </c:otherwise>
               </c:choose>
     </c:forEach>
          </display:table>
     </body>
</html>
</jsp:root>

How to put a jsp variable into a javascript function?

Please read the following coding. I want to pass the variable ans from jsp to the function check_answer() of javascript. ans is a string got from database. But I cannot put the variable ans into the Javascript function. Can anyone help?
<script language="Javascript">
function check_answer() {
if (testing.result.value==ans ){
window.alert("You have got 10 marks.");
</script>
<body>
<form name="testing"...>
<%
ResultSet rs = stmt.executeQuery("select * from level where...");
while(rs.next())
out.println("<tr>");
out.println("<td>" + rs.getString("question") + "</td>");
ans = rs.getString("answer");
out.println("</tr>");
out.println("<input type='text' name='result'>);
out.println("<input type='button' value='Enter' onclick='check_answer()'>");
%>

The following should be able to pass ans.
<script language="Javascript">
function check_answer(ans) {
if (testing.result.value==ans ){
window.alert("You have got 10 marks.");
</script>
<body>
<form name="testing"...>
<%
ResultSet rs = stmt.executeQuery("select * from level where...");
while(rs.next())
out.println("<tr>");
out.println("<td>" + rs.getString("question") + "</td>");
ans = rs.getString("answer");
out.println("</tr>");
out.println("<input type='text' name='result'>);
out.println("<input type='button' value='Enter' onclick='check_answer('<%= ans%>')'>");
%>jag

JSP unable to load javascript

I have a JSP page that is using a tag library from DotJ software. With the tag library there is an accompanying javascript library that handles the client side of the form. The screen runs okay on my laptop from within JDeveloper and from JDeveloper on the server that we are to deploy to.
The problem occurs when I try to run the page from 10g application server.
Generally, when I test the page its usually as an address of the form:-
xxx.xxx.xxx.xxx/UPDORA/Screen.jsp
When the page loads everything is there (logos, buttons, grid data etc.) but an error is displayed stating that the javascript file couldn't be loaded. The alert displays the URL that it is trying to load the javascript from - this seems to be different to the URL that I run the page from:
http://<machine name here>:81/UPDORA/dotj/dotj_2_0.js
I'm guessing that the inclusion of the port number is causing the problem ? The dotj directory is in the same place as Screen.jsp so I would assume if it can find one it can find another - but it isn't. I'm not sure if the problem is with the application server or the tag library that is trying to load the javascript file - but the screen runs okay from JDeveloper.
Does anyone have any idea what the problem may be ?

Hi,
I do not know what is the cause of your problem. However, it should be easy to identity the root cause. Here are some basic suggestions:
1. Since you can access http://something/here/Screen.jsp, try accessing http://samething/here/dotj/dotj_2_0.js from your browser directly just to make sure it is there.
2. check page source received by your browser to see the address of your javascript.
3. check .java file generated out of your jsp file by jdeveloper, which should be inside the directory for your jdeveloper project. Also check the .java file generated by your application server, which is in j2ee/home/application-deployments/yourApp/yourWebApp/persistence/_page. Find what is the difference that causes, I assume, different urls for your javascript.

Included JSP files not seeing JavaScript in main JSP file

Hi All,
I have a JSP page that defines a JavaScript block in it's HEAD block and then includes multiple JSP pages in it's BODY block. Calling a JavaScript function from any of the included JSP pages is met with the following JavaScript error:
JavaScript Error: [unknown origin]:
showBatchDetail is not defined.
I'm not sure what is wrong here since the JSP is generating on the server side and everything is fine by the time it gets to the client side. The entire client side file should be seeing the JavaScript block that was included in the main file.
Any help here would be much appreciated.
Steph.
Some barebones code appears below:
Main.jsp
<HTML>
<HEAD>
<TITLE>UNIT INFO</TITLE>
<SCRIPT LANGUAGE="JavaScript">
function showBatchDetail(batchKey)
var url = "/pditools/html/SfmReports/ShowBatchDetail.jsp"
+ "?batchKey=" + batchKey;
document.location = url;
</SCRIPT>
</HEAD>
<BODY>
<%@include file="ShowBatchSummary.jsp"%>
<%@include file="ShowUnitDefects.jsp"%>
<%@include file="ShowUnitHistory.jsp"%>
</BODY>
</HTML>
ShowBatchSummary.jsp
<TABLE>
<TR>
<TD>
BATCH SUMMARY
<A TARGET="_blank" HREF="JavaScript:showBatchDetail(1000);">(Batch Detail)</A>
</TD>
</TR>
<TR>
Show some data ...
</TR>
</TABLE>

The problem is not about include but about link use
----ShowBatchSummary.jsp----
<TABLE>
<TR>
<TD>
BATCH SUMMARY
<A TARGET="_blank" HREF="#" onclick="JavaScript:showBatchDetail(1000);">(Batch Detail)</A>
</TD>
</TR>
<TR>
Show some data ...
</TR>
</TABLE>
-------end of ShowBatchSummary.jsp--------

A peculiar problem using jsp:include conditionally

Hi,
This is regarding usage of jsp:include in Myfaces 1.1.4.
lets say the page containing the jsp:include statements as PARENT PAGE
I have a requirement to display some components in the PARENT PAGE which are continued from the same form using different JSPs since the components are different based on a condition.
I used the following code:
<h:panelGrid id="CandidateRequestorView" rendered="#{RgsViewRequirementBB.displayCandidateView}" columns="1">
     <jsp:include page="/RGSPages/requestorViewReq.jsp"/>
</h:panelGrid>
<h:panelGrid id="CandidateMatcView" rendered="#{!RgsViewRequirementBB.displayCandidateView}" columns="1">
     <jsp:include page="/RGSPages/matcViewReq.jsp"/>
</h:panelGrid>Now if I use only 1 panel grid (any one out of the above 2) it works. I didnt even use <f:subview> any where( neither in the PARENT PAGE nor in the included jsps), but it works.... Also for your knowledge these jsps contain only JSF elements( no plain HTML code is used)
But if I am using the above displayed code to have both the jsps (actually only one will be displayed bcoz the same condition is used)
then its not displaying all the contents of included jsp. (YES I AM ABLE TO GET TO THE JSP...THERE IS NO ERROR) There is a datatable inside this jsp which is not rendered......
I have used <f:subview> when i faced this problem.......
I have tried every combination....writing <f:subview> in the PARENT PAGE ....writing in included jsps and removed it from PARENT PAGE.....also some of the articles in the forum mentioned that <f:subview> element should not be used inside <h:panelgrid> .....i even tried that....but final result is same as I was getting the first time...
I am able to reach the jsp page (with or without <f:subview>) but i am not able to display all the contents....but if i use only one of the included jsps(by removing any one of the panel grids) I am able to view them. Since I am able to view all the contents when i view these pages inside the PARENT PAGE one at a time, that indicates there is no problem in datatable contained in these pages.....
( Also I have not used <f:view> inside my included jsps.)
Please help to solve this problem...
Thanks
Avner

Hi BalusC,
The RgsViewRequirementBB is already in the session scope.
Also I am using the setDisplayCandidateView(true) or setDisplayCandidateView(false ) explicitly as depicted below. The page is still under construction thats why the rendered attribute is explicitly set.
public RgsViewRequirementBackingBean() {
super();
// TODO Auto-generated constructor stub
try{
            setDisplayCandidateView(true);
             // some more code goes in here
     catch(Exception){
           ResourceBundle bundle = null;
           bundle = ResourceBundle.getBundle("resources.ErrorMessages", FacesContext.getCurrentInstance().getViewRoot().getLocale());
             //some more code goes in here
}

Parsing JSP values on to javascript functions

HI
Is it possible for Javascript functions to accept JSP variables?
For instance:
<script language="Javascript">
function selectEdit(fileID) {
   document.forms[0].recordID.value = fileID;
   document.forms[0].submit();
     </script> and a button calls the method like this:
   <input type="submit" name="Submit" value="View" onClick="selectEdit('<%= Record %>'")> I tried but was unsuccessful, can someone help?
Thanks
Eugene

Lets say you use your JSP to generate a set of links
page1.jsp:
<form target="targetPage.jsp">
<input type="hidden name="recordId");
<% for (int record=0; record<10; record++){ %>
<input type="submit" name="Submit" value="View" onClick="selectEdit('<%= record %>')">
<% } %>
</form>This JSP code runs, and generates the following
<form target="targetPage.jsp">
<input type="hidden name="recordId");
<input type="submit" name="Submit" value="View" onClick="selectEdit('0')">
<input type="submit" name="Submit" value="View" onClick="selectEdit('1')">
<input type="submit" name="Submit" value="View" onClick="selectEdit('2')">
<input type="submit" name="Submit" value="View" onClick="selectEdit('3')">
<input type="submit" name="Submit" value="View" onClick="selectEdit('4')">
<input type="submit" name="Submit" value="View" onClick="selectEdit('5')">
<input type="submit" name="Submit" value="View" onClick="selectEdit('6')">
<input type="submit" name="Submit" value="View" onClick="selectEdit('7')">
<input type="submit" name="Submit" value="View" onClick="selectEdit('8')">
<input type="submit" name="Submit" value="View" onClick="selectEdit('9')">
</form>This gets sent to your browser on displayed on screen
When you click on the appropriate button, it calls your function selectEdit, which sets the value of the hidden field according to which button you pushed.
It then submits the form, to targetPage.jsp
targetPage.jsp retreives the value using request.getParameter("recordId");
which is the name of the hidden field being submitted.
JSP reacts to form submissions, and produces an HTML page.
The HTML page can then run java script
JSP gets run again when you submit the form.
Hope this helps,
evnafets

Jsp session variable in javascript

hi,
i want use a jsp session variable inside a javascript code, for this i am using the following function,
function checkList()
<% String ecode1=(String)session.getAttribute("e_numb"); %>
var code=<%=ecode1%>
alert (code)
this is showing an error can any one please help me,
thanks
saurabh

You have ',%String ecode1' within the javascript. JSP will not recognize 'String' as a java class unless you import the String class. Something like <%@ page import = "java.util.* " %> Incorrect. String is part of java.lang, which is always imported into a java class.
Most probably what is missing in the javascript is
- missing quotes ? Not sure if this value is meant to be interpreted as a number or not.
- missing semicolon
function checkList()
<% String ecode1=(String)session.getAttribute("e_numb"); %>
var code="<%=ecode1%>";
alert (code);
}Lets assume that the value of e_numb is "42"
after running this as a jsp, it should produce the following on the resulting html page. You can see it by viewing the source.
function checkList()
var code="42";
alert (code);
}Check that to see it has produced valid javascript
Cheers,
evnafets

Jsp scriplet conditional on javascript

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