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JavaScript - Caching Ajax
Anyone got examples of how to cache an ajax result.
Search pulls details from database and an xml feed, and I need to link to results, cant do a post request from browser by a link request, so is there any way to cache whats displayed and link to the cache. thanks Similar TutorialsI have an Extjs web app that's running on a spring/rest backend & I'm having a really strange caching issue with my web app's javascript files & no-one seems to be able to tell what it is. The issue is that I have deleted a section of code in the JS file, yet it's still appearing in the browser, both IE and FF. I have tried a number of solutions but nothing has worked. if anyone has any suggestions as to what the issue would be, I would appreciate it. What I have tried: Manually remove & re-add the file Rollback the file to a previous version Remove the file from the index.html and re-add it Clear all cache in FF & IE Disable firebug Check the script is updated by manually accessing the file via the application URL & Firebug Script tab Renaming the JS file Renaming the index.html file Cleaning/rebuilding/removing the project Restarting the server & eclipse Pointing the server to a different location Rebooting Removing & re-adding the Tomcat server Ctrl + F5 Checking the URL path/classpath in Eclipse is correct Removing all Temp Internet Files (including when all associated apps were closed) Adding Pragma no-cache metadata tag to the index.html I'm at a loss as to what could be causing it. Hello, I run a webcam streaming site, and has a gallery of images saved every hour every 24 hours, the thumbnails dont seem to change much (?) so wondered if there was a way to stop caching using a javascript . . . script? This is what im dealing with: Code: <!-- timeshots --> <div id="Html4" style="position:absolute;overflow:auto;left:286px;top:557px;width:455px;height:180px;z-index:10"> <a href="http://server.gardencam.net/snapshots/00.jpg" rel="lightbox" title="GardenCam at 12:00am"><img src="http://server.gardencam.net/snapshots/00-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/01.jpg" rel="lightbox" title="GardenCam at 1:00am"><img src="http://server.gardencam.net/snapshots/01-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/02.jpg" rel="lightbox" title="GardenCam at 2:00am"><img src="http://server.gardencam.net/snapshots/02-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/03.jpg" rel="lightbox" title="GardenCam at 3:00am"><img src="http://server.gardencam.net/snapshots/03-thumbnail.jpg" /></a> <p> <a href="http://server.gardencam.net/snapshots/04.jpg" rel="lightbox" title="GardenCam at 4:00am"><img src="http://server.gardencam.net/snapshots/04-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/05.jpg" rel="lightbox" title="GardenCam at 5:00am"><img src="http://server.gardencam.net/snapshots/05-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/06.jpg" rel="lightbox" title="GardenCam at 6:00am"><img src="http://server.gardencam.net/snapshots/06-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/07.jpg" rel="lightbox" title="GardenCam at 7:00am"><img src="http://server.gardencam.net/snapshots/07-thumbnail.jpg" /></a> <p> <a href="http://server.gardencam.net/snapshots/08.jpg" rel="lightbox" title="GardenCam at 8:00am"><img src="http://server.gardencam.net/snapshots/08-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/09.jpg" rel="lightbox" title="GardenCam at 9:00am"><img src="http://server.gardencam.net/snapshots/09-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/10.jpg" rel="lightbox" title="GardenCam at 10:00am"><img src="http://server.gardencam.net/snapshots/10-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/11.jpg" rel="lightbox" title="GardenCam at 11:00am"><img src="http://server.gardencam.net/snapshots/11-thumbnail.jpg" /></a> <p> <a href="http://server.gardencam.net/snapshots/12.jpg" rel="lightbox" title="GardenCam at 12:00pm"><img src="http://server.gardencam.net/snapshots/12-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/13.jpg" rel="lightbox" title="GardenCam at 1:00pm"><img src="http://server.gardencam.net/snapshots/13-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/14.jpg" rel="lightbox" title="GardenCam at 2:00pm"><img src="http://server.gardencam.net/snapshots/14-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/15.jpg" rel="lightbox" title="GardenCam at 3:00pm"><img src="http://server.gardencam.net/snapshots/15-thumbnail.jpg" /></a> <p> <a href="http://server.gardencam.net/snapshots/16.jpg" rel="lightbox" title="GardenCam at 4:00pm"><img src="http://server.gardencam.net/snapshots/16-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/17.jpg" rel="lightbox" title="GardenCam at 5:00pm"><img src="http://server.gardencam.net/snapshots/17-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/18.jpg" rel="lightbox" title="GardenCam at 6:00pm"><img src="http://server.gardencam.net/snapshots/18-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/19.jpg" rel="lightbox" title="GardenCam at 7:00pm"><img src="http://server.gardencam.net/snapshots/19-thumbnail.jpg" /></a> <p> <a href="http://server.gardencam.net/snapshots/20.jpg" rel="lightbox" title="GardenCam at 8:00pm"><img src="http://server.gardencam.net/snapshots/20-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/21.jpg" rel="lightbox" title="GardenCam at 9:00pm"><img src="http://server.gardencam.net/snapshots/21-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/22.jpg" rel="lightbox" title="GardenCam at 10:00pm"><img src="http://server.gardencam.net/snapshots/22-thumbnail.jpg" /></a> <a href="http://server.gardencam.net/snapshots/23.jpg" rel="lightbox" title="GardenCam at 11:00pm"><img src="http://server.gardencam.net/snapshots/23-thumbnail.jpg" /></a></div> <!-- gardencamscript --> A few suggestions would be nice, or if you could modify the code slightly? Many thanks george Hi, I am hoping I just need to be pointed in the right direction with this. I have Page1. When Page1 body onloads it uses Ajax to call PartA Within PartA I have a message board so members can write messages which will be sent to my database in PartA[1] and immediately posted for view on to PartA[2]. As I want to have my request to the server updating regularly I want to have PartA[2] on a timed loop to refresh - I do not need the content of PartA[1] to refresh. So the order of events would look like this: Page1 | onload call | v PartA / \ V V PartA[1] PartA[2] (loads once) (constantly refreshes) What I am not sure about is that I have <body> and <head> attributes in Page1 only. I have already used my body onload to call PartA (and can't use it to call PartA[2] before PartA has loaded anyway). I do not want the user to have to click a button or do anything to call up PartA[2]. So my question is how would I get PartA[2] to automatically load within PartA? I hope I have made this clear, but if I haven't let me know and I will try again. i have a html wich i am working on .. Code: <html>
<head>
<script language="Javascript">
function xmlhttpPost(strURL) {
var xmlHttpReq = false;
var self = this;
// Mozilla/Safari
if (window.XMLHttpRequest) {
self.xmlHttpReq = new XMLHttpRequest();
}
// IE
else if (window.ActiveXObject) {
self.xmlHttpReq = new ActiveXObject("Microsoft.XMLHTTP");
}
self.xmlHttpReq.open('POST', strURL, true);
self.xmlHttpReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
self.xmlHttpReq.onreadystatechange = function() {
if (self.xmlHttpReq.readyState == 4) {
updatepage(self.xmlHttpReq.responseText);
}
}
self.xmlHttpReq.send(getquerystring());
}
function getquerystring() {
var form = document.forms['f1'];
var username = form.username.value;
qstr = 'u=' + escape(username);
return qstr;
}
function updatepage(str){
var s = str;
var a = s.split(',');
var a1 = a[0];
var a1_1 = a[1];
var a2 = a[2];
var a2_1 = a[3];
var a3 = a[4];
var a3_1 = a[5];
var a4 = a[6];
var a4_1 = a[7];
var a5 = a[8];
var a5_1 = a[9];
var a6 = a[10];
var a6_1 = a[11];
var a7 = a[12];
var a7_1 = a[13];
var a8 = a[14];
var a8_1 = a[15];
var a9 = a[16];
var a9_1 = a[17];
var a0 = a[18];
var a0_1 = a[19];
var form = document.forms['f1'];
form.result1.value = a1;
form.result1_1.value = a1_1;
form.result2.value = a2;
form.result2_1.value = a2_1;
form.result3.value = a3;
form.result3_1.value = a3_1;
form.result4.value = a4;
form.result4_1.value = a4_1;
form.result5.value = a5;
form.result5_1.value = a5_1;
form.result6.value = a6;
form.result6_1.value = a6_1;
form.result7.value = a7;
form.result7_1.value = a7_1;
form.result8.value = a8;
form.result8_1.value = a8_1;
form.result9.value = a9;
form.result9_1.value = a9_1;
form.result0.value = a0;
form.result0_1.value = a0_1;
}
</script>
</head>
<body>
<form name="f1">
<p>Username: <input name="username" type="text" id="username">
<p>Password: <input name="password" type="text" id="password">
<input value="Go" type="button" onclick='JavaScript:xmlhttpPost("/cgi-bin/3sms/smscontacts.pl")'></p>
<input name="result1" type="text" id="result1" size="18" maxlength="25">
<input name="result1_1" type="text" id="result1_1" size="11" maxlength="11"><p>
<input name="result2" type="text" id="result2" size="18" maxlength="25">
<input name="result2_1" type="text" id="result2_1" size="11" maxlength="11"><p>
<input name="result3" type="text" id="result3" size="18" maxlength="25">
<input name="result3_1" type="text" id="result3_1" size="11" maxlength="11"><p>
<input name="result4" type="text" id="result4" size="18" maxlength="25">
<input name="result4_1" type="text" id="result4_1" size="11" maxlength="11"><p>
<input name="result5" type="text" id="result5" size="18" maxlength="25">
<input name="result5_1" type="text" id="result5_1" size="11" maxlength="11"><p>
<input name="result6" type="text" id="result6" size="18" maxlength="25">
<input name="result6_1" type="text" id="result6_1" size="11" maxlength="11"><p>
<input name="result7" type="text" id="result7" size="18" maxlength="25">
<input name="result7_1" type="text" id="result7_1" size="11" maxlength="11"><p>
<input name="result8" type="text" id="result8" size="18" maxlength="25">
<input name="result8_1" type="text" id="result8_1" size="11" maxlength="11"><p>
<input name="result9" type="text" id="result9" size="18" maxlength="25">
<input name="result9_1" type="text" id="result9_1" size="11" maxlength="11"><p>
<input name="result0" type="text" id="result0" size="18" maxlength="25">
<input name="result0_1" type="text" id="result0_1" size="11" maxlength="11"><p>
</div>
</form>
</body>
</html>
now my problem is the password is not sent to the perl script i basicly modified an ajax from another form to do this form. when the "go" is pressed the username is sent and a string is recived and devided into the form inputs.. all i need to do now is send the password along with the username the username variable is "u" i would like the password variable to be "p" any ideas I was wondering if someone would have the time to talk and help explain some Ajax things to me... slowly. I'm trying to make my web sites more dynamic. Like I just need someone I can bounce ideas off and they can walk me through step by step on how to do them. Thanks Shelby I need some help with some javascript I am trying to put on an IF forum. http://s7.invisionfree.com/AJAXTEST/index.php At the very top, you will see a link called "on this link". It is an ajax code. If you click on it, a blank alert box comes up. However, if you go he http://commx.info/will/test.html and click on the same link, the alert box has the text I am looking for. It uses the exact same code, so I can't figure out why it works on a plain page and not on an IF forum. Does anyone have any ideas? The code is Code: <html><head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"><script>
function callback(serverData, serverStatus) {
alert(serverData);
}
function ajaxRequest() {
var AJAX = null;
if (window.XMLHttpRequest) {
AJAX=new XMLHttpRequest();
} else {
AJAX=new ActiveXObject("Microsoft.XMLHTTP");
}
if (AJAX==null) {
alert("Your browser doesn't support AJAX.");
return false
}
AJAX.onreadystatechange = function() {
if (AJAX.readyState==4 || AJAX.readyState=="complete") {
callback(AJAX.responseText, AJAX.status);
}
}
AJAX.open("GET",'http://commx.info/accounts/codes/shout/ipb13/getChatData.php?lastID=0', true);
AJAX.send(null);
}
</script>
</head><body><a href="javascript:ajaxRequest()">on this link</a></body></html>
Hello everyone. I was working on a ajax function and I can't seem to figure out what I'm doing wrong here. I'm kinda new with the prototype method I was wondering if I could get some help figuring out what I'm doing wrong here exactly and how I can fix this. Any help on this would be wonderful. Thanks, Jon W Code: function createAjax() {
if(!this.http && window.ActiveXObject) {
try {
this.http = new ActiveXObject("Msxml2.XMLHTTP" || "Microsoft.XMLHTTP");
}
catch(e1) {
this.http = false;
}
}
if(!this.http && window.XMLHttpRequest) {
try {
this.http = new XMLHttpRequest();
}
catch(e2) {
alert("Sorry we was unable to make a request between your browser.");
}
}
}
createAjax.prototype.request = function(url) {
var rmd = Math.random();
this.http.open('get', url+"&rmd="+rmd, true);
this.http.send(null);
this.http.onreadystatechange = this.responseHandler;
}
createAjax.prototype.responseHandler = function(obj) {
if(this.http.readyState == 4) {
document.getElementById(obj).innerHTML = this.responseText;
}
}
function ajax(url, obj) {
a = new createAjax();
a.request(url);
a.responseHandler(obj);
}
var doAjax = new ajax('ajax.php?name=jon','content');
hi; This is my first post and am abit stuck. I used JQuery AJAX to get data from a different page and show it in my div. This all works fine but now i want the page collected by AJAX to execute a Javascript function which is in the page which request the AJAX page. I have this so far but its not working. This is in the AJAX-ed page. Code: <a href="#" onClick="change_postcode(prompt('Please Enter Your Postcode', 'SW10')");
)">SW10</a>
And the page which requested the AJAX page. Code: <script type="text/javascript">
function change_postcode(postcode){
$('#view8').html('<p><img src="http://www.MySite.com/images/loading.gif"/><br />Loading! Please Wait...</p>');
$('#view8').load("http://www.mywebsite.com/include.php?inc=Events&when=&postcode="+postcode);
}</script>
I though about using top but that didn't work. Code: <a href="#" onClick="top.change_postcode(prompt('Please Enter Your Postcode', 'SW10')");
)">SW10</a>
How can i get my AJAX page to execute a Javascript function which is in the page which contains the the AJAX page. Thankyou all for reading my post Paul P.S Am very sorry for my way with words. Hello, I am looking to created a login system where a user will take his/her photo via webcam in browser and that picture taken should be related to that user; under a specific timestamp, for example, if my user name is username and I logged In, the system will note my time and by taking a photo (either auto or by clicking a button in browser) and will store that picture in a folder under a unique name related to that customer and the time he logged in, I am stuck how to connect web cam to browser (desirable ajax etc not flash) and then photo taken and stored in a folder with unique name etc anybody did something like this before? help appreciated. Right, I've been searching for a few days now and i'm looking for a AJAX/JQuery script where i can load external content in to a div. I've seen a few site's that have it, and im after it so when i click the page link it loads it in the address bar like this http://www.google.co.uk/#content/index.php or what ever. Thanks. so i have this "class" defined in a javascript file, "a.cross-link". This enables the ability for users to navigate the webpage in a slider format. it works fine if I directly place the required html code: Code: <a class="cross-link" href="#3" title="Go to Page 2">View Results</a> but if i have php print out that line for me, it doesn't work: PHP Code: echo "<a class= \"cross-link\" href=\"#3\" title=\"Go to Page 3\">$name</a>";( Where $name is some variable) Note: the php code is just your average sql stuff. here is an interesting observation i've made: if i "hardcode" this this into the html: <a class="cross-link" href="#3" title="Go to Page 3">View Results</a> and then i go to generate the sourcecode, this is what appears (this works): <A class=cross-link title="Go to Page 3" href="#3" jQuery1283131847233="30">View Results</A> but if i have the html made by a php echo statement, it just stays the same - i dont get a jQuery1283131847233="30" generated in the sourcecode. i'm sorry i'm having difficulty describing the problem. i'm new to jquery and ajax stuff. to me, it seems like the "cross-link" class i have defined in the javascript isn't being applied to correctly. i have no idea. can you invoke javascript from a php echo statement that is formatted to produce html code? here is another thing i believe is true: when the page loads, the javascript loads. the users, through the use of ajax, submitts a sql querey and navigates, using a jquery slider, to another div (where i want the user to go after selecting a resulting link from the sql query). so the javascript is going to execute before the list of results is produced. do I need to rerun the javascript each time new php produced sql data is populated in a div? if so, how? i dont know what more information you may need, so please ask. Thanks. I have a formula done in PHP. Lets say it's PHP Code: $sum = $_POST['one'] + $_POST['two']; I have 2 textboxes, one named "one", the other named "two". I want the page to also display the answer under the text boxes but it updates in real time when you input a value into the textboxes. How would I do that? I am very new to web development and I need a push in the right direction here. This is my problem; I am making a web page that will be used privately by two people. I need to find a way to go to an FTP site that can only be accessed by web browser (that is what IT told me) and download a file that has a constant name "prevhour.log" and save this file to a directory so that it can be read (not sure how, my boss is doing that end) and the data will be dumped, and this data will be extrapolated into a gas gauge style dashboard. I need some way of this to be done as automated as possible. Thank you for your time. Rick i have found a very simple ajaxexample on the internet, when this works i can adept it to my site, but it doesn't work :-( anybody sees why? Code: <div align="center" id="timeval">--:--:--</div>
<button id="stop">Stop</button>
<script src="jquery.js"></script>
<script>
$(document).ready(function()
{
//ajaxTime.php is called every second to get time from server
var refreshId = setInterval(function()
{
$('#timeval').load('ajaxTime.php?randval='+ Math.random());
}, 1000);
//stop the clock when this button is clicked
$("#stop").click(function()
{
clearInterval(refreshId);
});
});
</script>
and the phpscript:
ajaxtime.php
<?php
echo date("g:i:s A");
?>
Hi, I was just wondering is it possible to have an onclick() JavaScript function that would use PHP to INSERT a new row into a MySQL table? Like is it possible to put some php into a javascript function that runs when I click the button on my page? Something like that? The PHP updates the MySQL database and the JavaScript tells the PHP when to happen? Just wondering what's the best way to go about that. Hi, I have an ajax script that I would like to use to retrieve a password hint from a database. Both the ajax script and the php retrieval script are stored on the same domain (we'll call it domain1.com), but the ajax script runs on another domain (domain2.com). All the scripts are working fine, individually, but when I try to integrate them, I'm getting a ready state of 4, but an HTTP status of 0. I've traced the code flow and the retrieval script is being called by the ajax script OK and it's echoing all the right stuff, but it's just not getting back to calling ajax routine. I've read that an ajax routine can only call a script that resides on the same domain that it runs on. Is this correct and, if so, does anyone know of a work around, because I really need to be able to store the ajax script on domain1 and run it on domain2? If not, then can anyone suggest why I'm getting an HTTP status of 0, when all the individual components are working fine? Debbie What in the world is wrong with this? I have been looking at it for hours. Code: $.ajax({
url: "wifitos.html",
type: "GET",
dataType: "html",
error: function(){ $("#loading").html("Error Loading Site. Try again later.");},
beforeSend: function(){ $("#loading").show("fast");},
complete: function(){ $("#loading").hide("fast");},
success: function(html){
$("#panel_content").show("slow");
$("#panel_content").html(html);
}
});
All the HTML tags are right. It shows the loading properly, but does not return an error and just says loading forever without loading wifitos.html. Help appreciated! FIXED! DON'T REPLY TO THIS THREAD: After hours of trying to figure this out, I find it 10 sec after I post this thread. Go figure. It was because I had a return false before the ajax. First post here and its a "is this possible to do question?" html code: Move a div into an other div. Same thing as u move a file on the desktop into an other file. Im going to try to do this in this way html <- heres the divs, file divs and folder divs, all of them got uniqe ids java <- making it possible to move the divs, and handling what div i move where ajax <- calling a php script with the divid i moved and to what div i moved it to I know nothing about ajax and im kinda bad at javascript to, know how to move a div, and how to see what div i moved it to but nothing more. My questions is as follows, is it possible to do this? anyone know where to start? or got any good links i can watch, learn ajax from scratch or try with some Opensourceproject and learn from them? Thanks all for ur time. http://sorgalla.com/projects/jcarousel/ I would like to use this jcarousel. I dont use AJAX, I just want to set it up with script in my head and html on my website. Is this possible or do I have ot use AJAX? I am not familiar with it at all.. I completed the steps it said. I put the folder in my directory. I added the script to my head code, as well as the other one. I then also added the other two scripts in my html where I would like them to be. It's not showing up so I know I am missing steps or not doing it correctly Help anyone? THANK YOU!!! |
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