Jquery $.get is unaccesible - javascript

I have this mark up and a json.txt file which lies on the same directory as this .im unable to fetch it contents..also im not getting any errors in my firebug
<!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="jquery.js"></script>
<script>
$(document).ready(function(){
$.get('/json.txt',
function(data) {
$('div.result').html(data);
});
});
</script>
</head>
<body>
<div class="result"></div>
</body>
</html>

"on the same page" ? Do you mean "in the same directory" ? If so use
$.get('json.txt'
If this doesn't work, I suggest using the long form to see what happens :
$.ajax({
url: 'json.txt',
success: function(data){console.log(data)},
error: function(jqXHR, textStatus, errorThrown) {console.log(jqXHR, textStatus, errorThrown)};
});
So you can see in your console (ctrl+maj+i) the error (or the data).
Another note : this can't work if you're opening the html file in file:// as the json would be considered coming from another domain. You must have an http server and open it in http://.

If you type full path, everything works?
$.get('http://localhost/json.txt', function(data) {
});
I am trying help to detect problem
If file is local (file:///), then look jQuery: read text file from file system

Related

Error in reading XML file using JavaScript

I am working on a project in which I'm in need to get the data stored in XML file using javascript or jQuery. My Script code is
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$.ajax({
type: "POST", //I also tried POST method
url: "match.xml",
dataType: "xml",
success: function(data){
$(data).find("mchdata match").each(function(){ //match is a tag
$(".container").append('<div class="head">'+ $(this).attr("src") +'</div>'); //src is an attribute of match tag.
});
},
error: function(){
$(".container").text("Error occured");
}
});
});
</script>
Html code is
<body>
<div class="container"></div>
</body>
Every time I run this code it's showing 'Error occurred' message in container div. I tried to inspect the page, it shows an error message like
Failed to load file:///C:/Users/vinay%20Dahiya/Desktop/match.xml:
Cross origin requests are only supported for protocol schemes: http,
data, chrome, chrome-extension, https.
I don't know what does it mean. Is this the right script url 'm using
<script src="http://code.jquery.com/jquery-1.10.1.min.js"></script>
I'm trying to solve this for last 2-3 days but don't know what actually wrong in the code
XML file is View XML file
Thanks in advance.
I'm suggesting a quick fix for this, since you are testing this on a local machine and nowhere near production,
go to the folder where the xml is and start a simple python server there.
use
python -m SimpleHTTPServer
then you can access your file using,
http://localhost:8000/xxyy.xml

Can't get php POST sent by AJAX

I know there's a lot of similar questions here, but I looked up over 20 of them, and no solutions worked for me.
Here's the problem: I'm sendind an ajax post value to my index.php. When I look at Firebug, the value is there, but when I try to echo it on the page, the POST is empty. I'm really stucked on this.
Here's my full code:
<?php
if(isset($_POST['action']))
{
echo $_POST['action'];
}
?>
<!DOCTYPE html>
<html>
<head>
<title>Test</title>
<meta charset="utf-8">
<!-- JQUERY LIBRARY AND SCRIPTS -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
</head>
<body>
Test
<script type="text/javascript">
$(document).ready(function()
{
$('a').on('click', function()
{
$.ajax({
url: 'index.php',
type: 'POST',
data: {action: 'clicked'},
success: function(data)
{
console.log(data);
alert('Done!');
},
error: function(jqXHR, textStatus, errorThrown)
{
alert(errorThrown);
}
});
return false;
});
});
</script>
</body>
</html>
This code does not try to print that to the page, but simply prepends the whole HTML document with a "clicked" string, in the ajax response. If you want to show this in the browser, you need print that data to the page. If you inspect the console in FireBug, you will see that the response for the Ajax call is exactly what I described above.
Now if you want to print that value back to your page, here is my suggestion, you create a separate file, ajax.php:
<?php
if(isset($_POST['action']))
{
echo $_POST['action'];
}
?>
And fix your index.php to include some element where you are going to print that value to. I.e. add <div id="response-results"></div> just after your element. Then change your Ajax call to go to ajax.php, not index.php.
Now you need to populate that Ajax response to the rendered page, and this can be done simply with jQuery like:
$("#response-results").html(data);
Ofcourse, this goes into the success handler of the ajax call.
As Jay Blanchard said
You're using AJAX to send a a variable to a page which is already rendered on your browser. This will never work because the PHP your're getting the variable from has been run server-side and returned via AJAX, not in the page you're currently viewing.
Try this it will work :
index.php :
<?php
if(isset($_POST['action']))
{
echo $_POST['action'];
}
?>
main.html :
<!DOCTYPE html>
<html>
<head>
<title>Test</title>
<meta charset="utf-8">
<!-- JQUERY LIBRARY AND SCRIPTS -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
</head>
<body>
Test
<div id="result"></div>
<script type="text/javascript">
$(document).ready(function()
{
$('a').on('click', function()
{
$.ajax({
url: 'index.php',
type: 'POST',
data: {action: 'clicked'},
success: function(data)
{
// console.log(data);
$("#result").html(data);
},
error: function(jqXHR, textStatus, errorThrown)
{
alert(errorThrown);
}
});
return false;
});
});
</script>
</body>
</html>
As R J commented, it's impossible to do what I was trying to.
That happens because once my page is loaded, the top PHP script is proccessed, but there's nothing on my POST.
After my call to Ajax, the page is rendered again but the top PHP script will get nothing cause it's SERVER SIDE. Turns out that I even could print out my Ajax data on the page, but the PHP $_POST would never get its value.
Thank you guys.

Bing Image Archive Ajax Error

I have made an Ajax call to Bing to get its daily image, however i get an error in the console:
this is the full code its on a localhost using wamp
index.php
<head>
<script src="jquery.min.js"></script>
</head>
<body>
<div id="output"></div>
</body>
<script type="text/javascript">
$.ajax({
url : "http://bing.com/HPImageArchive.aspx?format=js&idx=0&n=1",
dataType:"jsonp",
});
function mycallback(data)
{
$('#output').html(data.images[0].url);
}
</script>
I think you should study the documention for jquery ajax call.
<head>
<script src="jquery.min.js"></script>
</head>
<body>
<div id="output"></div>
</body>
<script type="text/javascript">
(function() {
var bingImagesUrl = "http://bing.com/HPImageArchive.aspx";
$.getJSON( bingImagesUrl, {
idx:0,
n:1,
format: "js"
}).done(function( data ) {
$('#output').html(data.images[0].url);
});
})();
</script>
#Below_the_Radar: your answer does not really help as OP is likely getting the same error even if he makes the Ajax call correctly.
According to Is there a way to get Bing's photo of the day?, it seems that Bing.com only supports XML, JSON, and RSS. I guess OP want to make the call with dataType: "jsonp" probably because he would like to bypass the browsers same-origin policy.
This can be solved client-side in browser by using a Chrome extension, but I guess that is not OP's use case. I bet OP is trying to get a picture from Bing's archive and thus use it in his own website. If that is the case, it has no solution as we need to have "Access-Control-Allow-Origin": "*" in the response's headers returned by Bing, which we do not have control.
I suggest considering an alternative. Try this: https://source.unsplash.com/

Loading a text file through AJAX gives restricted URI error

I mentioned i read the suggested link ...and Could not able to understand the
suggestion .."Use Greasemonkey to modify Pages and start writing some
javascript to modify a web page
I am loading a text file with $.ajax. When running the code on Firefox, I get the following error:
Error: ["Access to restricted URI denied" code: "1012" nsresult: "0x805303f4 (NS_ERROR_DOM_BAD_URI)" location: "<unknown>"]
Here's my code:
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
<script language="javascript" type="text/javascript">
$(document).ready(function () {
$("button").click(function () {
$.ajax({ url: "demo_test.txt",
success: function (result) {
$("#div1").html(result);
},
error: function (abc) {
alert(abc.statusText);
},
cache:false
});
return false;
});
});
</script>
</head>
<body>
<div id="div1"><h2>Let jQuery AJAX Change This Text</h2></div>
<button>Get External Content</button>
</body>
</html>
I've already read the following questions:
firefox reading web page from local JS file -- access to restricted URI denied, code: 1012, nsresult: NS_ERROR_DOM_BAD_URI
Error: [Exception... "Access to restricted URI denied" .... while calling $.ajax method
It was suggested that file system should not be used, so changed the URL to http://demo_test.txt, but that did not solve the issue.
I also heard that it might be because of a cross domain issue. If so, what exactly is meant by that, and how should I solve the problem?
Browser security prevents the code from running. You are better off running a local server such as IIS or Apache.
You can change your browser to run local content by changing a browser config
Firefox
Go to about:config
Find security.fileuri.strict_origin_policy parameter
Set it to false
I finally seems to Get it working . Here is working Script
$("button").click(function(){
$.ajax({url:"http://localhost/demo_test.txt",success:function(result){
$("#div1").html(result);
}});
});
Workaround : put the html file and text file on local server (IIS) New Site .

jQuery client for REST webservice with jersey

I am new in jQuery and I'm trying to develop a client for my web service. I've tried something simple, just for testing, but still it doesn't work, although it seems ok to me.
I have the jQuery library in my tomee/webapp folder, along with my html and javascript files. If I write some non-jQuery code in my javascript file, it works.
I have the following code:
index.html
<!DOCTYPE html SYSTEM "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="client.js"></script>
</head>
<body>
<input type="button" id="getAllButton" value="Get all books" onclick="return getAllBooks()"/>
<div id="messageBox"></div>
</body>
</html>
client.js
function getAllBooks() {
$.ajax({
dataType: 'application/xml',
type: 'GET',
url: rootURL + '/books',
success: function (data) {
alert(1);
},
error: function (data) {
alert(2);
}
});
}
The problem is that no alert will appear. If a write pure javascript (I mean without jQuery), alerts will do appear.
Why do alerts not appear? Any advice?
Thank you!
Sorin
Lets try to find out what works and what not; try changing your client.js to:
alert(1);
function getAllBooks() {
alert(2);
window.open(rootURL + '/books');
$.ajax({
dataType: 'application/xml',
type: 'GET',
url: rootURL + '/books',
success: function (data) {
alert(3);
},
error: function (data) {
alert(4);
}
});
}
If you see the alert #1 (when your html page loads) then your client.js path is OK. If you see alert #2 (when you click the button) then at least the function is being called.
Verify if window.open() shows what your web service is supposed to show you (even a error message will guide you throw the right path). And of course, if you see alert #3 or #4 then your problem was mysteriously solved by it self.... it sometimes happens :-)
NOTE: If you know how to use the javascript console of your browser use console.log() instead of alert() for debugging;
Thanks charlietfl for your tips! They helped me solve the problem.
The problem was that it didn't know who rootURL is. I found rootURL in an example and I thought that is something defined in jQuery. It seems it isn't.

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