variable « JSTL « JSP-Servlet Q&A

1. Why do I get an AbstractMethodError when setting a JSTL variable?    stackoverflow.com

I am trying to set a variable that I will refer to in a custom JSP tag, so I have something like this in my JSP:

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<c:set var="path" ...

2. Assigning values from JavaScript to Java variable    stackoverflow.com

How to assign a value from JavaScript to Java variable in the JSP page? Is it possible to do this? The following is the javascript function:

function loadGroupMembers(beanArrayVal){
    document.getElementById("beanVal").value=beanArrayVal;

 ...

3. Overwriting variables in JSP/JSTL    stackoverflow.com

I have the following code:

<c:forEach items="${mergeList}" var="sublist" varStatus="index">
                <c:forEach items="${sublist}" var="item" varStatus="row">

4. how to pass javascript variable to the jstl code    stackoverflow.com

I have something like the below code. I need to pass the variable selectedIndex to the JSTL code. How can I do this?

function updateSP(selectedIndex)
{
    <c:if test="${entry.key eq IC.oList[selectedIndex]}">
}

5. Which variables can be accessed with the ${...} syntax in a Struts tag in a JSP page?    stackoverflow.com

I'm getting a little bit frustrated since I can't find out which variables I can access with the ${...} syntax in a Struts tag, placed in a JSP page. As an example ...

6. How to set the JSTL variable value in javascript?    stackoverflow.com

How to set the JSTL variable value in java script?

<script>

 function function1()

 { 

  var val1 = document.getElementById('userName').value;

  <c:set var="user" value=""/>  // how do i set val1 here? ...

7. How do I assign hidden value to JSTL variable?    stackoverflow.com

How do I assign hidden value to JSTL variable? Example:

<input type="hidden" name="userName" value="Administrator" />
<c:set var="user" value="" />  // How do I set hidden variable value (Administrator) here?

8. using javascript variable inside jstl    stackoverflow.com

I want to iterate a HashMap in javascript using jstl. is it possible to do like this?

function checkSelection(group,tvalue){
alert(group);
alert(tvalue);

<c:forEach items="${configuredGroupMap}" var="groupMap">
    alert("aa<c:out value="${groupMap.key}"/>");
    <c:if test="${groupMap.key==group}">
  ...

9. How do I pass Javascript variable to and JSTL?    stackoverflow.com

How do I pass Javascript variable to and JSTL?

<script>

    var name = "john";  

    <jsp:setProperty name="emp" property="firstName" value=" "/>   // How ...

10. How to access variable set by JSTL core in my JSP page?    stackoverflow.com

In my webapp, I want to set a default cookie to store a locale of 'en_US'. I have functionality in place for the user to change this successfully. However, I've removed a ...

11. jstl tags do not link with jsp variables    stackoverflow.com

ím trying to add jstl/jsp component to a spring+flex+hibernate project. Im using Tomcat 5, downloaded and added the jakarta-taglibs-standard-1.1.2 dependencies, made some changes to the web.xml, etc... dont want to get ...

12. JSTL forEach use variable in javacode    stackoverflow.com

I want to use the actual item from my c:forEach in a <% JavaCode/JSPCode %>. How do I access to this item?

<c:forEach var="item" items="${list}">
   <% MyProduct p = (MyProduct) ${item}; ...

13. How do you minify/obfuscate JavaScript code in a JSP that has JSP/JSTL variables mixed into it?    stackoverflow.com

arrays.jsp:

//...
var x = <c:out value="${x}"/>
<c:if test="${empty doExternal}">
processExternalArrays();
</c:if>
//...

14. How to retrieve a request scoped variable using JSTL on Struts 1    stackoverflow.com

I'm refactoring some legacy code that uses Struts 1 (No flames please), and I am having a difficult time retrieving a parameter I set in my Action class. Here is the ...

15. How to cast JSTL variable to string in Liferay JSP?    stackoverflow.com

I habe a problem with my latest Liferay Portlet or rather a JSP I'm using in this portlet. I am using a string array that contains strings which are shown on the ...

16. Assign fmt:formatDate output to a c:set variable    stackoverflow.com

I want to do something like this:

<c:set var="strDate" value="<fmt:formatDate value='${obj.dateIn}' pattern='ddMMyyyy'/>"/>

17. Passing value of a java method to a javascript variable using Struts 2 tag    stackoverflow.com

I have a JSP file

<%@ taglib prefix="s" uri="/struts-tags"%>
<% response.setContentType("application/javascript"); %>

var collegename = '<s:text name="student.collegename"/>';

18. Access one tag's variable in another    stackoverflow.com

I have a custom tag

<%@ tag body-content="scriptless"%>

<% 
MyClass mc = request.getAttribute("someValue");
%>

<custom:aboveTag> ...

19. EL ExpressionFactory, scopes, JSTL forEach tag, iterated variable: where is?    stackoverflow.com

I am working with ExpressionFactory inside my program, and I wan to make ValueExpressions and variables be accessible from JSP with EL expressions. I can't understand something: looks like my variables I ...

20. JSTL variables not working    stackoverflow.com

I wrote the following code:

<%
        int accountNumber = Integer.parseInt(request.getParameter("accountNumber"));
        int depositAmount = Integer.parseInt(request.getParameter("depositAmount"));
    %>
 ...

21. Query regarding JSP variable access    stackoverflow.com

Forgive my ignorance, I am stuck with this. What I need to do is, access a date member in my bean and pass it to a method defined, something like below ...

22. how to assign javascript variables to jsp or jstl    stackoverflow.com

Can anybody tell me how to assign javascript variables to jsp request or to jsp session. I am doing something like this Here deletedRows is a hidden field.

var del=45;
document.getElementById("deletedRows").value=del
alert(document.getElementById("deletedRows").value);
<%String del_values = request.getParameter("deletedRows");%>
<%request.getSession().setAttribute("del_rows", del_values);%>

23. Using variables in jstl if statement    stackoverflow.com

I have something like this

 <c:forEach var="authority" items="#{SPRING_SECURITY_CONTEXT.authentication.principal.authorities}">

      <c:if test="${fn:contains( ${authority} , ROLE_ADMIN) }">

      </c:if>
</c:forEach>

24. JSP, JSTL. Problem with variables and methods    stackoverflow.com

I have some problem with using jstl. I have this:

<jsp:useBean id="view" class="user.View"></jsp:useBean>
<jsp:useBean id="user" class="user.Validation" scope="session"></jsp:useBean>

<c:if test="${user.getValid() == 0}">
<c:out value="${view.printUserData(user)}"></c:out>
</c:if> 

package user;

import java.lang.StringBuilder;

public class View {
    public ...

25. Check if variable exists in JSTL    stackoverflow.com

I've got a PersistenceSet and would like to check if it contains a certain variable. How can I check in the JSTL whether subitem exists or not? However when I try to access ...

26. How to use a variable data as a scope variable in jstl    stackoverflow.com

I want to dynamically create variable names in java el. The problem is that the second line returns sessionScope.saved_activity as a string instead of data.

<c:set var="savedKey" value="sessionScope.saved_${entry.key}" />

<td> <input type="text" ...

27. When is it appropriate to set a request-scoped variable in a JSP?    stackoverflow.com

In my experience, it is rarely/never necessary to set scope="request" on an EL variable. For example, I have a page that, given an item parameter, constructs a URL specific to that item ...

28. [Tiles 2 Standalone] Where are my JSTL/EL variables?    struts.1045723.n5.nabble.com

I'm having a look at Tiles and I'm having a few problems getting it to work with my JSTL. The templating works fine and I see the page structure I expect. The trouble is that none of my JSTL/EL variables are complied. If I just try putting a variable straight to the page, it'll just print it out as is (e.g. ...

29. How to declare and use variables in JSTL ?    coderanch.com

Hi For lot of simpler calculations and validations using Javascript we used to declare variables and then do them and use it in Javascript before submitting a form. Say, int x=2,y=3;x=x+y; and use it in the form as a default value and then we may validate the user input from Javascript and then post the form date using Javascript itself. For ...

30. JSTL: EL and variable names with "."    coderanch.com

31. Assigning a Value in to String variable using JSTL    coderanch.com

32. Passing variable name to java method with JSTL    coderanch.com

33. using JSTL variable in java code of JSP    coderanch.com

34. Using JSTL variables in a Javascript?    coderanch.com

Hi, all! Correct. JavaScript is executed on the client-side. But that doesn't mean that JSTL can't be evaluated and mixed with JavaScript. Not only can you pass JSTL evaluated code to JavaScript function, you can add JSTL code within the tags. I was caught by surprise when I could do this and set the proper window size. Here is a ...

35. using jstl-like variables within custom made tags    coderanch.com

36. Dynamic variable name in JSTL    coderanch.com

37. Convert JSTL variable type    coderanch.com

38. Variables from JSTL to JSP    coderanch.com

39. problem with page variables in JSTL    coderanch.com

40. questions about JSTL variables    coderanch.com

// now want to access this "msg" variable in JSp, how ? Questions 1. Session Object "NameList" includes a List of Names Strings, so I want to iterate through it, and concatnate its name String with a comma separator, and eventually the msg should ...

41. usage of substring in jstl variable    coderanch.com

42. Accessing a variable declared in JSTL in jsp    coderanch.com

43. JSTL 1.1 - Get value from method of an Obj and set it to a variable    coderanch.com

How can I get the value from the method of an Object (e.g., length of a String by calling myString.length()) and set the value of the length to a variable? In the code below, my objective is to set myVar with the length() value obtained from myString of myForm object. Code is somewhat like: ...

44. Processing dynamic variable in JSTL    coderanch.com

45. Resetting an objects variable with JSTL and EL    coderanch.com

Using JSP 2.0 and JSTL 1.1.2 I have an object defined within ${sessionScope.sessionData} This sessionData object has a getter and setter for a variable of another object. While I can access the getter like this ${sessionScope.sessionData.myVar} I am not sure how to set/reset it I have tried both ${sessionScope.sessionData.var["null"]} and Both does not give any error, but ...

46. jstl variable handling    coderanch.com

The need to do this is usually an indicator that JSTL isn't being used properly. JSTL is meant for scriptless JSPs where all of the heavy lifting is done with Java objects before context is ever forwarded to the JSP for markup. If you were comparing objects, you could simply bind your scriptlet variable to request scope with request.setAttribute("name", value) and ...

47. Getting jstl variable value on run time in jsp.    coderanch.com

48. Using JSTL/EL to access page variable    coderanch.com

49. how to access jstl variable in scriplet?    coderanch.com

50. Decalring a int variable and using it in for loop in JSTL or EL    coderanch.com

Hi, I would like to declare a int variable and use it as the looping variable. Just like this for(int i=0; i<10; i++) { // do something } I want to do this in a JSP. I can do it in scriplet. But I dont want to use a scriplet and want the do it using either a JSTL () or ...

51. Session Variable and JSTL    coderanch.com

52. How to get Browser Variable value in side JSTL    coderanch.com

Hi All, A little problem am facing. I done know how I will get a users entered username and password from the form in browser and put the value in JSTL tag. I have tried quite a fre but got invalid datasource errors. Please help me get out of this. My code is like below:

53. Access static variables using JSTL    coderanch.com

54. variable declaration with in the loop using C:set in JSTL    coderanch.com

55. Dynamic variable name in JSTL    coderanch.com

56. How to assign message key value to a variable JSTL    coderanch.com

57. Assign Javascript variable value to JSTL variable.    coderanch.com

58. how can assign hidden variable value to JSTL variable,with out submit    coderanch.com

59. How do I set this variable in JSTL?    coderanch.com

60. A JSTL doubt while assigning a variable using     coderanch.com

Hi All , Im trying to use a scoped variable in my jsp to help with formatting of the code .However, I think Im doing something wrong at two points , however cant figure out what exactly im doing wrong. // Point 1 ...

61. How to pass Java Script variable to JSTL    coderanch.com

62. Need to display the jsp variable(String) into html?    java-forums.org

Hi, I am having the following line in notes.jsp.