JSP: Storing Object To PageContext: Old Fashioned?
Dec 14, 2006
JSPs seem to offer more than one way of storing Objects to a session context for session tracking purposes.
Both these seem to work Ok in my JSP code on Tomcat 5.0.x:
// using pageContext with session scope
pageContext.setAttribute("name", myObject, PageContext.SESSION_SCOPE);
// using the session context of HttpServlet
session.setAttribute("name",myObject);
Whats the difference here? Is there a preferred way to do this?
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Sep 20, 2006
I've spent several days trying to work this out. Maybe I'm just
searching for the wrong keywords/phrases.
I have some code that looks like:
[-- snippet starts --]
Console = new Object();
Console.init = function() {
this.STDIN = document.getElementById('console0_stdin');
this.STDOUT = document.getElementById('console0_stdout');
// set styles on the element references, eg:
this.STDIN.style.width = ï`%'
this.STDOUT.style.width = ï`%'
}
Console.focus = function() {
this.STDIN.focus();
}
Console.writeln = function(buffer) {
this.STDOUT.value += "
" + buffer;
}
[-- snippet ends --]
I'm not sure why, but the Console.focus() and Console.writeln() methods
just don't seem to be able to use the DOM references stored in
Console.STDIN and Console.STDOUT. Everything's fine in the
constructor, but other methods can't seem to use them.
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Mar 26, 2010
On a button click - Ive created an object, with some properties in it.If I want to access those properties when clicking another button.how would I call a function which returns circ.area() on another button click, if the first Button calls build()?
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Oct 4, 2011
how can I stored the value within an a href tag for example my php page does this
Code:
echo "<li><a href="JavaScript:article('$id')">".$row['title']."</a> </li>";
which prints this code on my ajax page
Code:
<a href="JavaScript:article('40')">What is the difference between Archiving and Trashing an Article? </a>
I want to save the value within href so that I can use it later. Please note its ajax so location.href doesn't work.
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Dec 8, 2011
my form value is &hello john &bye jacob &goodafternoon.How can I store all the values starting with & in a var?
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Apr 3, 2005
Is it possible to store large amout of information in client side using Javascript.. I dont want to use array!!!
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Jul 2, 2010
can i have a javascript value to be stored in html.iam declaring like this in JavaScript var abc = " ";that means now in alert i should get only "sssss" not "<html><body><div id=one>"+ str + "</div></body></html>". When i am trying like this it is not working for me. Is there a way?I dont want this by Document.Write. I want that value to be stored in "abc", not to be printed.
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Mar 10, 2011
I was wondering if it was somehow possible to store the complete content of a div for the following scenario.
I have a div (#container) that contains an image with a link. If you click that image the contents of the div should be replaced with content I load from an external page. --> $('#container').load('test.html');
In test.html I have a close button that should unload the data and retrieve the original image with link.
I want to be able to do this with several divs, so that when one button is pressed, a previously opened one returns to it's 'closed' state.
So basicly
1. I want to show an imagebutton
2. when clicked show external content
3. And be able to unload that external content so the original image returns.
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Jun 12, 2010
I just recently started getting into JavaScript (2 days ago) after seeing how limited HTML and CSS by itself is, and I created a game where you have a certain amount of time to click as much as you can. The game works fine but the problem is with my leaderboard. I want to be able to store the high scores and names so that everybody see's the same thing. I know cookies save data but is that only clientside? All I need to do is save 6 variables so that the leaderboard is always updated.
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Feb 4, 2011
I'm integrating a JavaScript typing tutorial to my website. But I'm not able to store the value to the database.
In the below code you can see the speed is updated in a html span. The id of the tag is speed(<span id="speed"></span>). This code will automatically update when user start typing. I want to update this to a database when user press submit button. But i cant able to. Is there any way to input the speed to database ?
<script type="text/javascript">
//<![CDATA[
var garray = new Array();
var garrayIndex = -1;
[Code]....
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Feb 6, 2011
I have an unordered listWhen clicking one of them, I want to do somethingEasy so far.Now, I also want each list element to have some unique data associated with it so my JavaScript could treat each list element individually.As I see it, my options are:Add a custom non-sanctioned attribute to the LI element (probably not a good idea).Add an ID to each LI element, and name the ID such that the data can be extracted (also, probably not a good idea).Add a hidden input in each LI element and store the data there (seems like there's got to be an easier way).
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Dec 23, 2010
I know how to create cookies etc.. I've got to the point where the checkbox is stored in a cookie. But how can i make it so that when the checkbox is checked and the person leaves the page, when they come back i need the checkbox to still be checked(ticked) instead of blank (the checkbox being ticked will run a function to do something else..).
do i need an if statement? how would i do this? is this right?
if(cookie is set){
make the checkbox checked
}
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Apr 9, 2009
I could use some help with a form I am trying to complete. If someone could PM me and I could attach the file. It's only a small problem but I am tired of spending hours trying to figure it out.
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Aug 30, 2005
I would like to get the clients date and time (his system time) and
store it somewhere so I can use it in my code later. (insert it to
database!). Any ideas.
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Jul 7, 2006
I have the following javascript function:
<script type="text/javascript">
function HTMLEncode( text )
{
text = text.replace(/&/g, "&") ;
text = text.replace(/"/g, """) ;
text = text.replace(/</g, "<") ;
text = text.replace(/>/g, ">") ;
text = text.replace(/'/g, "'") ;
return text ;
}
</script>
Now i want to store the content of 'text' in a php string. Is that possible?
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Jul 21, 2006
i need to parse this string and i have to fetch url and coordinates
value of X and Y from this and has to store them in buffer ..
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Feb 12, 2010
I store my selectors in variables or a config object. So I would do something like this for example:
var $manufacturer = $('#manufacturer');
But say, $manufacturer is a select, and I want to use something like this:
$('#manufacturer option:selected')
Is there a way to use a stored selector with "option:selected"?
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Jun 4, 2009
I tried and tried for so long to get this to work, but I just can't.
Here's what I did:
var testvar = document.getElementById('example').style.color;
alert(testvar);
Not only would the alert come up empty each time, but IE reports that "testvar" is undefined. Why isn't it working? And if I'm going about it the wrong way, how can I store an element's style info, such as font colour like in this example, as a variable?
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Nov 4, 2009
I know on the front end using js you can get the date and time on client machine and store in a hidden field so it can be grabbed to use on the back-end to store in a database or even return a special message based on their time. However, I'm not too sure how to begin.
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May 11, 2009
I'm working on a page that needs to do some calculations based on values that the user inputs via sliders. I can get the values selected to display in a text box below the slider, but I also need to store the value as a variable for use in calculations.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
[Code].....
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Dec 8, 2010
I was wondering if someone could help me on a problem I have been having. In my code my function is supposed to take the elements of the form and it checks to see if it is checked or not. After that it would store it in the variable checkbox. However when I test it out it will not store it in the variable. For example if I picked sleep/ standby checkbox and hit submit it will show as 06 instead of just 6. Don't know what I am doing wrong. Here is my [code]...
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Sep 19, 2011
'm thinking that I have to learn how to work with cookies to do this but I was wondering if there was a variable type that might instead.. I have the following little test script...it works but only the first way...if I wanted to make this work both ways how would I go about it? I'm trying to figure out a way to create one of the little +/- buttons that can show and hide content.
[Code]...
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Mar 10, 2009
I am trying to write a Javascript that sets and checks a cookie based on font-size buttons that increase and decrease the font-size in a certain div. The increase and decrease of the font in the right div works fine, the cookie doesn't seem to be working. Attached is my code.
<html>
<head>
<script>
function getCookie(fontSize_Cookie)
[Code]......
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Aug 13, 2007
---------------------------------
The Problem
---------------------------------
I have made the following structure which uses Dynamic Object Module (DOM) to
add/remove a field on the page which works perfectly fine.
I have a database whose structure contains tag,date and ip as field.
Now I want to send whatever data has been written on the tags field to be
stored in the database in the tag field of the db.
I read on a forum to use implode function or serialze function and then post
the data (which is combined) to the database.
I didnot understand how to use the implode function WITH REFERENCE TO THE GIVEN TASK.
I am storing whatever the contatenated data from all the tags fields (the no. depends
on the click on add button) in a variable 'tag'
And I want all the individual data of the field using DOM in variable tagarray.
Please tell me what will be relationship between the tag and arraytag so all the
array of tags field are concatenated and stored in tag variable.
How do I define the index of tag array and the the variable tag. Code:
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Mar 8, 2010
The issue we are having is that he has a simple form that we are testing out that allows users to come on, click what they wish to order and submit. While they click what they wish to order, there is a text field in the bottom which updates with the price of their order. This script he found online and implemented without a problem.Though we noticed when this form was submitted, the email would take the name of the input and the value and place them next to one another.So for example if the user clicks the first bread with the value 1.99 then the email would show "Bread=1.99" and as we wished to use radio boxes so the user can only pick one, we need a way to read off the bread name.
We thought the easiest route would be to use javascript to take the selected value, store it with a variable and then run an if statement through the value and when it found the answer, we could display the name of the bread in a seperate field below the prices or hidden, as long as it appears within the email.I know it can be done as some examples online look similar to what we were trying to achieve but our ability to do so is non-existant.Is there a simple easy way to do this or could you direct me to a location which would take me through it step by step.
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Mar 26, 2010
I need to write a script that parses a web page for a given delimiter and then stores the following 50 characters as a variable. I wrote the following php script:
Code:
<?php
$del = "picture_id";
$url = "http://xxxx.net/xxxxx/xxxxxx.php?do=xxxx";
$source = file_get_contents($url);
[Code]....
The delimiter is always going to be constant, however the succeeding characters will be different each and every time. I need to write this in Javascript because it is hosted on my server, and ran by users who post on my brothers message board (which is hosted elsewhere). Since Php is server side I always get "guest" as a value rather than the random string of characters like it should be.
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