JSP Variable Passing

I have a jsp page which lists several links on it. When the user clicks a link it fires an event which should set some bean variables based on which link the user selected. However I am new to java and unsure how it will know what link was selected. I tried to pass variables in the onClick event but it just gave me an error (jsp render error). So basically this is what I have:
I set the following values:
    String sCategory = Category[iCount];
    String sSubCategory = SubCategory[iCount]<i>;
Display the SubCategory as a link (there is an = after onClick but won't let me post with it)
<hbj:link id= "<%=id%>" text = "<%=sSubCategory%>" onClick "ShowArticle"/>
function ShowArticle(Event event)
    folderBean.setCurrentFolder(sCategory)
    folderBean.setCurrentSubFolder(sSubCategory)
    mode = 2;
So I need to send the sCategory and sSubCategory to the ShowArticle Function in order to set the folders but have no idea how to do this so any help is greatly appreciated.

Ramani: Thanks - this worked great for that feature.
I have another application which has a page with a button link. When the user clicks the button it opens a popup page. I would like when the page pops up that it displays information retrieved by the first page.
So currently the link calls a javascript function which fires the code to open the window
window.open "/irj/servlet/prt/portal/prtroot/myToolbar.OpenWin",'mywindow'
Question is how does the window opened know what sContent is? It is WAY too long to pass via query string so what is my next option?
These are straight .jsp files with no classes attached - I thought maybe I could still use a bean to store the data but when I add a reference:
<jsp:useBean id="myBean" scope="application" class="com.mybeans.myBean" />
I get the following error: Error occurs during the compilation of java generated from the jsp.
What is the best way to go about accomplishing this goal? Hopefully without having to rewrite the entire app as a DynPage?

Similar Messages

Passing jsp variable into javascript.....

Hai friends,
Look this code.....
var mywindow= window.open( ......)
mywindow.<%= loc%>.style.visibility = "hidden";
loc is my jsp variable passing dyanamically to the script....
But it is not taking....
when i assign jsp var into javascript like
mywindow.somehardcodedvalue.style.visibility = <%= loc%>;
it is working fine ....
pl reply me.......

Hi,
It is not working.My code is like....
String loc=(String)arrStr;
%>
<script language="JavaScript" type="text/JavaScript">
mywindow.<%= loc%>.style.visibility = "hidden";
</script>
<%

How to pass a jsp variable into javascript??

<p><%@ taglib uri="http://java.sun.com/jstl/core_rt" prefix="c" %>
<p><%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
<p><html>
<p><c:set var="binrmapi" value="http://localhost/paas-api/bingorooms.action;jsessionid=XXXXXX?userId=TEST2&sessionId=1&key=1" />
<p><c:import var="testbinrm" url="${fn:replace(binrmapi, 'XXXXXX', jsessionid)}"/>
<p><c:set var="tuples" value="${fn:split(testbinrm, '><')}" />
<p>Time until next game
<p><c:forEach var="tuple" items="${tuples}">
<p><c:if test="${fn:contains(tuple, 'row ')}">
<p> <p><code>
<p> <c:set var="values" value="${fn:split(tuple, '=\"')}" />
<p> <font color="blue">
<p> <c:out value="${values[17]}" />
<p><c:set var="remainingtime" value="${values[17]}" />
<p> </font>
<p> </code>
<p></c:if>
<p></c:forEach>
<p><form name="counter"><input type="text" size="8" name="d2"></form>
<p><script>
<p>var milisec=0
<p>var seconds=eval("document.myForm.remaining").value;
<p>function display(){
<p> if (milisec<=0){
<p> milisec=9
<p> seconds-=1
<p>}
<p>if (seconds<=-1){
<p> milisec=0
<p> seconds+=1
<p> }
<br>else
<p> milisec-=1
<p> document.counter.d2.value=seconds+"."+milisec
setTimeout("display()",100)
<p>}
<p>display()
<p></script>
<p></body>
<p></html>
<p>This is my code that i was working on, in the jsp part of the script, i get a api call and save a value of time in the variable remainingtime.. and in the javascript, i try to have a countdown clock counting down the remaining time.. but i guess it doesnt work.. how can i get that working? thanks alot
Message was edited by:
hamham3001
Message was edited by:
hamham3001
Message was edited by:
hamham3001
Message was edited by:
hamham3001

Re: How to pass a jsp variable into javascript??Here is the sameple one, hope it will solves your problem.
<html>
<body>
<form name=f>
<%!
String str = "A String"
%>
<script>
var avariable = <%=str%>
<script>
</form>
</body>
</html>
Let me know if you face any problem

Passing JavaScript values to JSP variables

Can any body correct the follwing code
<Script language="JavaScript">
function test( x )
<%
int num = x;
num = num * 2;
%>
v.value = "<%out.print(num);%>";
<input type="button" name="b" value="test" onClick="test(5)">
<input type="text" name="v" value="0">
In short, I am trying to pass JavaScript value to JSP variable. I hope that it is possible to do that. If it is possible then how can I do it. I want to assing the variable x passed to the JavaScript function called test to the JSP variable called num.
Regards,
Ageel

Thank you for your reply,,,
I think then the only way to do it is to post the
value on the server and then use request.getParameter
method in jsp code
but the question now how can I post values to the
server using JavaScript without reloading the pageyes... you can to it by create a new popup window which will submit the value to server after page was loaded... then, server return a value to the same window in html/jsp page which then using javascript to set it back to the opener and close up the window... however, this is not a good choice unless you have no other alternative...
>
There is other possible solution
if I can get the text field value from the same page
without reloading it that would work fine and will
solve my problem, is it possible?yes... you can get the value from the textfield...
for example :
function showValueInTextField()
alert(document.forms[0].elements["mytextfieldname"].value);
>
My final question> can jsp change things on the same
page without reloading it. I mean can it work like
JavaScript so that I can use it's internal functions
instead of using java script :S
not really know what you trying to say here...

Assigning html input value to a jsp variable

I have the following problem: I need to assign the value of html <input> field to a jsp variable. This should be done without submittion of the form.
<form name="main">
<table>
<tr>
<td><input type="text" name="gantry" value="123"></td>
</tr>
<table>
</form>
Is there any way to access main.gantry.value from jsp and assign it to a variable? I tried
<% prevGantry = main.gantry.value; %>
but it didn't work, and the problem is not with parsong or initialisation. Please, can anyone help?
Best regards, SoVa.

No it can't be done. You are mixing up java with javascript.
Java/JSP runs on the server end. Generates an HTML page and stops running.
The page loads in the browser, and and can run javascript locally.
The only way to run java code again is to go through the request/response process. ie submit a form, click a link, make an Ajax call...
The only way to get a field from the screen into a java variable is via request.getParameter().

Assigning a javascript value to a JSP variable

How do i assign a javascript value to a JSP variable?
eg
<%
String JSPvar;
%>
<script language="JavaScript1.2">

</script>
<%
JSPvar = javascriptVar ???
%>

You do know that the JSP runs on the server and generates HTML, including Javascript, that is executed on the client, don't you?

Help: How to assign dynamically a javascript variable to a jsp variable???

Hello all,
What I need to do is to assign the value of the html form element which is a checkbox in this case:
<input name="ADB02_checkbox" type=checkbox id="ADB02_checkbox" onClick="decide_enable_or_disable_particular_checkbox()" value="ADB02">
to a jsp variable :
<%
String riderCode = "";
%>
Its dynamic because i need to do different operations based on different rider codes like in this function:
function decide_enable_or_disable_particular_checkbox() {
var rider = document.rider_form;
alert(rider.ADB02_checkbox.value);
if (rider.<%= riderCode%>_checkbox.checked == true) {
enable_all_row_elements_for_<%= riderCode%>();
else {
     disable_all_row_elements();
which uses the naming of the rider code to call other corresponding functions.
so is there any way that you guys ca suggest a solution.
what i thought is to do this:
function decide_enable_or_disable_particular_checkbox() {
var rider = document.rider_form;
HERE--> riderCode = rider.ADB02_checkbox.value;
alert(rider.ADB02_checkbox.value);
if (rider.<%= riderCode%>_checkbox.checked == true) {
enable_all_row_elements_for_<%= riderCode%>();
else {
     disable_all_row_elements();
or
add an onFocus="riderCode = document.rider_form.ADB02_checkbox.value;" in the checkbox tag.
but can i do that or is there any other way or is it totally impossible to assign javascript values to jsp variables.

Hi again,
I got a problem here abt looping in javascript.
The prob is that only the 1st loop works the rest are not.
So only the checkbox in the 1st row is enabled, the rest aren't.(only ADB02 is enabled not DLP01 cause ADB02 is 1st in the loop)
Here are 2 of many of the checkboxes in different rows:
<input name="ADB02_checkbox" type="checkbox" id="ADB02_checkbox" value="checkbox" onClick="val_checkbox()" disabled=true>
<input name="DLP01_checkbox" type="checkbox" id="DLP01_checkbox" value="checkbox" onClick="val_checkbox()" disabled=true>
This is declared in jsp:
<%
//to be used with javascript function prepare_elements() for checking to enable/disable checkbox , to check age base and limit of insured
String[][] riderCheckArray = {
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_ACCIDENTAL_DEATH_BENEFIT, "20", "60"},
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_LIFELINE_BENEFIT, "20", "50"},
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_MEDICASH_100_PLAN, "0", "55"},
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_MEDICASH_200_PLAN, "0", "55"},
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_MEDICASH_300_PLAN, "0", "55"},
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_MANUTERM_REDUCING_TERM_ASSURANCE_PLAN, "16", "65"},
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_PERSONAL_ACCIDENT_BENEFIT, "20", "65"},
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_15_YEAR_LEVEL_AND_CONVERTIBLE_MANUTERM_RIDER, "16", "55"},
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_20_YEAR_LEVEL_AND_CONVERTIBLE_MANUTERM_RIDER, "16", "50"},
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_5_YEAR_RENEWABLE_AND_CONVERTIBLE_MANUTERM_RIDER, "16", "60"},
{allPlans.PLAN_HER_MY_FUTURE, allRiders.RIDER_10_YEAR_RENEWABLE_AND_CONVERTIBLE_MANUTERM_RIDER, "16", "60"},
%>
Here's the script (the riderCheckArray[any no.] should be eg: riderCheckArray[0] (has an i in front))
<script>

function prepare_elements() {
var rider = document.rider_form;

for (i=0 ; i < <%= riderCheckArray.length%> ; i++) {
if ("<%= txtPlanCode%>" == "<%= riderCheckArray[i][0]%>" ) {
riderCode = "<%= riderCheckArray[i][1]%>";
if (<%= insuredAge.intValue()%> < <%= Integer.parseInt(riderCheckArray[i][2])%> ||
<%= insuredAge.intValue()%> > <%= Integer.parseInt(riderCheckArray[i][3])%>) {
disable_particular_checkbox();
alert("This rider cannot be attached. This rider can only be attached for age range " +
<%= riderCheckArray[i][2]%> +
" to " +
<%= riderCheckArray[i][3]%>);
else {
enable_particular_checkbox();

function enable_particular_checkbox() {
var Rdr_Checkbox = riderCode + "_checkbox";
var rider = document.rider_form;
rider.all(Rdr_Checkbox).disabled = false;
rider.all(Rdr_Checkbox).style.background ="FFFFFF";
function disable_particular_checkbox() {
var Rdr_Checkbox = riderCode + "_checkbox";
var rider = document.rider_form;
rider.all(Rdr_Checkbox).disabled = true;
rider.all(Rdr_Checkbox).style.background ="CCCCCC";
</script>

How to assign a JSP variabl's value to a JavaScript variable?

Hello,
I want to assign a JSP variable's value to JAVASCRIPT variable.
or how to assign JavaScript variable's value to JSP varialbe
HOw do i do it ?
can anyone please help?
Regards and thanks for your time.
Ashvini

I want to assign a JSP variable's value to
JAVASCRIPT variable.
var jsVariable = <%=someVariable%>;
or how to assign JavaScript variable's value to JSP
varialbeYou can't. JSP is server-side and JavaScript is client-side. The JSP variables are never available on the client side for any sort of assignment.

Assining a bean attribute to a jsp variable

I am writing a struts application and am using
<bean:write name="configattribute" property="name"/>
to print out info on my jsp page.
I was wondering if I could assign that value to a local jsp variable so I can check its value and change the colour of the text accordingly.
e.g.
String name = <bean:write name="configattribute" property="name"/>;
if name.equals("Ben"){
out.print(<font color=\"red\">;
else{
out.print(<font color=\"blue\">;
}

You should still be able to use the code I listed...the logic:iterate tag creates the bean "configname" in the page scope. So you should be able to do something like this:
<logic:iterate id="configname" name="confignames">
   <tr>
      <td>
<% ConfigName configname = (ConfigName)pageContext.getAttribute( "configname" );
   String color = "blue";
   if( "julius".equalsIgnoreCase( configName.getOwner( ) ) )
      color = "red";
   } %>
        <span style="color: <%= color %>"><bean:write name="configname" property="owner"/></span>
      </td>
      <td>
         <bean:write name="configname" property="name"/>
      </td>
   </tr>
</logic:iterate>Does that sound right?
- Jesse

Unable assign a BPM Object field value to a JSP Variable using "invoke"

Hi,
I'm unable to retrieve a value returned by a BPM Object Method and use it in JSP. Here is what I'm trying to achieve:
BPM object named : "myObject" has a method "getRequiredValue" which returns a "String". I want to assign the value returned by "getRequiredValue" to a JSP Variable "myVariable" using invoke method as below:
<% String myVariable = ""; %>
<f:invoke var="${myObject}" methodName="getRequiredValue" retAttName="myVariable"/>
<% out.println ("myVariable: " + myVariable); %>
When I execute the above code I don't get the value being returned by "getRequiredValue" into "myVariable".
Any help would be highly appreciated!
regards,
MK

1. Make sure you mark the "Server Side Method" property of the getRequiredValue method to "Yes".
2. I guess you dont need to specify "<% String myVariable = ""; %>". Try removing it.
3. Replace "<% out.println ("myVariable: " + myVariable); %>" by <c:out value="${myVariable}"/> just in case!
4. Lastly, I hope "myObject" is the name of the instance variable in your screenflow, and not the BPM object name.
Hope this helps
-Hemant

How to get javascript variable in jsp variable

Hi all,
i have a variable str in my javascript function
var str = somevaluei want this str value in jsp variable in the same page...
how can this be done..???
any ideas...
Thanks

I dont know if its possible or not.
Actually it depends on what do you want to do with the variable.
as far as assisginng value to the hidden variable is concerned it can be done this way.
<% jsp code
String hiddenVar = "";
%>
< html code
<input type type = "hidden" name="hidden" vale="<%=hiddenVar %>"
html ends>
while in js function you can assign vale to the hidden variable which will ultimately assign value to the JSP variable as follows.
var str = "value";
document.form_name.hidden_field_name.value = str.
hope this hepls.

How can I obtain the value of a database column in a JSP variable ?

How can I obtain the value of a table column in a JSP variable?
For example the <jbo:ShowValue datasource="cl" dataitem="Cont" ></jbo:ShowValue>
I need to have it in a variable like this:
<% String cnt=<jbo:ShowValue datasource="cl" dataitem="Cont" ></jbo:ShowValue>; %>
But it is not workig this way.
Please help me to obtain the value.
I am using JDev RC2.
Thanks.

Try something like
String cnt = c1.getRowSet().getCurrentRow().getAttribute("Cont").toString();
-A
How can I obtain the value of a table column in a JSP variable?
For example the <jbo:ShowValue datasource="cl" dataitem="Cont" ></jbo:ShowValue>
I need to have it in a variable like this:
<% String cnt=<jbo:ShowValue datasource="cl" dataitem="Cont" ></jbo:ShowValue>; %>
But it is not workig this way.
Please help me to obtain the value.
I am using JDev RC2.
Thanks.

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>

Parsing JSP variable into JavaScript

Hi,
I am trying to parse a JSP variable into a pice of JavaScript code:
<%
some jsp code .....
String table_name=cols[0].toString();
%>
<script language="javascript">
var jsTemp = <%=table_name%>
alert ('jsTemp')
</script>
<%some more JSP....
This does not create an alert, any ideas why? Am I missing a quote/semi-colon somewhere?

Sure this is being executed,
when trying to run, this does not work:
String table="TEST";%>
<script language="javascript">var jsTemp = <%=table%> alert ('jsTemp');</script>
<%more JSP...
when trying to similarly run, I get the popup 'HELLO':
String table="TEST"; //not used anymore%>
<script language="javascript">var jsTemp = "HELLO"; alert ('jsTemp');</script>
<%more JSP...
Is there supposed to be a semi-colon after <%=table%> ? Or is there another issue with this bit of code?

I want to assign the value of a Javascript variable to JSP Variable

I want to assign the value of a Javascript variable to JSP Variable .. for example :
<%
Bla Bla Bla
%>
<script>
var JavaScriptVariable="hello"
</script>
<%
String JSPVariable=// The Value of JavaScriptVariable ;
%>
How can i do that ??
Thanks

>I want to assign the value of a Javascript variable to JSP Variable
cannot be done.Friend try to understand concepts properly Javascript is always excuted by the browser @clientside where as JSPCode is executed Websever(ServletContainer) @serverside.Through you are combining JSP Code blocks(Tags,Expressions,scriptlets...) & javascript under a single page webserver can only identify what is their under JSP Code blocks.
Hope this could be an appropriate answer for your question.
However,you can as well submit a request by encoding your URL with request parameters and the submit to the page and then collect it using request.getParameter(name).
But under a single context state it is not possible
REGARDS,
RaHuL

JSP Variable Passing

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