How to get response from url using Javascript
I am making a request to break the phone, for this I will receive a response from this URL
http://www.apexweb.co.in/apex_quote/uname_validation.asp .
I don't know how to get the answer, can anyone help me with the code?
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If your application needs to connect to another site, you can use JSONP
http://en.wikipedia.org/wiki/JSONP
That is, if you know that uname_validation.asp supports JSONP
If your page is on the same domain ( http://www.apexweb.co.in ) you can use xmlhttprequest.
Both are very lightweight and compatible with almost every browser using jQuery $ .getJSON:
http://api.jquery.com/jQuery.getJSON/
Here's an example of connecting to Google:
$(document).ready(function(){
var url = 'http://ajax.googleapis.com/ajax/services/search/web?v=1.0&q="
+"someting&callback=?';
$.getJSON(url, function(data){
console.log(data);
});
});
Note that your asp must have a response header that sets the contentType for the app / javascript and generates a valid JSONP (my asp is rusty, so here is some pseudocode):
request("callback")&"("&jsonString&");"
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using ajax in javascript can get a response.
var invocation = new XMLHttpRequest();
var url = 'http://www.apexweb.co.in/apex_quote/uname_validation.asp';
function checkURL(){
invocation.open('GET', url, true);
invocation.onreadystatechange = handler;
invocation.send();
}
function handler(evtXHR){
if (invocation.readyState == 4)
{
if (invocation.status == 200)
{
//success
}
else {
//failure
}
}
}
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