I am trying to test an exemple of consuming a web service (SOAP) in HTML and JavaScript through this code:
<script type="text/javascript">
function soap() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.open('POST', 'http://www.webservicex.net/CurrencyConvertor.asmx', true);
var sr =
'<?xml version="1.0" encoding="utf-8"?>' +
'<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:web="http://www.webserviceX.NET/">'+
'<soapenv:Header/>'+
'<soapenv:Body>'+
'<web:ConversionRate>'+
'<web:FromCurrency>EUR</web:FromCurrency>'+
'<web:ToCurrency>TND</web:ToCurrency>'+
'</web:ConversionRate>'+
'</soapenv:Body>'+
'</soapenv:Envelope>';
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4) {
if (xmlhttp.status == 200) {
alert('done use firebug to see response');
}
}
if (xmlhttp.readyState == 0) {
alert('open() has not been called yet');
}
if (xmlhttp.readyState == 1) {
alert('send() has not been called yet');
}
if (xmlhttp.readyState == 2) {
alert('send() has been called, ...');
}
if (xmlhttp.readyState == 3) {
alert('Interactive - Downloading');
}
else
alert('Consuming Error');
}
// Send the POST request
xmlhttp.setRequestHeader('Content-Type', 'text/xml');
xmlhttp.send(sr);
// send request
// ...
}
</script>
The problem is that nothing is shown (I talk about the differents alerts), and the "onreadystatechange" function is not executed!
I didn't figure out the reason?
Thanks in advance!
Related
Hi I have this code that for some reasons I don't understand just refuse to work. I really don't know what I will do anymore.
This is my code:
<script>
function findMatch() {
if(window.XMLHttpRequest) {
xmlhttp = new XMLHttpRequest();
}else {
xmlhttp = new ActiveXObject('Microsoft.XMLHttp');
}
xmlhttp.onreadystatechange = function() {
if(xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById('results').innerHtml = xmlHttp.responseText;
}else {
console.log('not ready yet');
}
}
xmlhttp.open('GET','aindex.php',true);
xmlhttp.send();
}
</script>
<form>
Enter a name<br>
<input type="text" id="search" name="keyword"
onkeydown="findMatch();">
</form>
<div id="results"></div>
//THE PHP FILE TO OUTPUT
<?php
echo 'Did it work';
?>
It prints not ready in the console indicating that the readystate and status test failed. I am working with xamp.
Please pals, any help will be highly appreciative.
Thank.
You're not sending the search keyword to the PHP script.
var keyword = document.getElementById("search").value;
xmlhttp.open("GET", "aindex.php?keyword=" + encodeURIComponent(keyword)", true);
xmlhttp.send();
There's also little point in reporting an error when xmlhttp.state is not 4, other states are normal as intermediate steps. If you want to report an error, do it when xmlhttp.status is not 200.
if (xmlhttp.readyState == 4) {
if (xmlhttp.status == 200) {
document.getElementById('results').innerHtml = xmlHttp.responseText;
} else {
console.log("Bad status: " + xmlhttp.status);
}
}
I'm making this api call and not getting any results. When I make the call from the browser and search with that imo, I get back the vessel information but not in the call from code.
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<div id="pr"></div>
<script>
getInfoVessel("9146314");
function httpGetAsync(url, callback) {
var xmlHttp = new XMLHttpRequest();
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200){
callback(xmlHttp.responseText);
}
}
xmlHttp.open("GET", url, true);
xmlHttp.send(null);
}
function getInfoVessel(IMO){
httpGetAsync('http://services.marinetraffic.com/api/exportvessel/v:5/7[herecomesthekey]/protocol:jsono/imo:9146314', function(response) {
document.getElementById('pr').innerHTML = response;
});
}
</script>
</body>
</html>
The response is good Status Code:200 OK but there is an error in the response KEY NOT FOUND.
Try this code:
function httpGetAsync(url, callback) {
var xmlHttp = new XMLHttpRequest();
xmlHttp.open("GET", url, true);
xmlHttp.send(null);
xmlHttp.onreadystatechange = function() {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200){
callback(xmlHttp.responseText);
}
}
}
function getInfoVessel(IMO){
httpGetAsync('http://services.marinetraffic.com/api/exportvessel/v:5/7[herecomesthekey]/protocol:jsono/imo:' + IMO, function(response) {
console.log(response)
document.getElementById('pr').innerHTML = response;
});
}
getInfoVessel("9146314");
I am using ajax so that i can read the content of a file from my server .I am calling a function where ajax is , in a timer.And this is affecting my server .It is crashing.If this is the correct way to do it , what's wrong?
Please give a few sugestions,because i don't know what its problem is.
I am calling first the function:"function(ctrl)".
function get(ctrl){
var content;
content=ctrl.id;
var getTextUpdate= setInterval(function () {
readdocument();
}, 1200);
}
function readdocument() {
var xmlhttp;
if (window.XMLHttpRequest){
xmlhttp=new XMLHttpRequest();
}else{
xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}
xmlhttp.onreadystatechange=function(){
if (xmlhttp.readyState==4 && xmlhttp.status==200)
{
document.getElementById("area").value=xmlhttp.responseText;
}
}
xmlhttp.open("GET","../user/test/read-text.php?user="+content,true);
xmlhttp.send();
}
Here it is the read-text.php file:
<?php
$rec_user=$_GET['user'];
echo($rec_user);
$chat = fopen($rec_user.".txt", "r") or die("Unable to open file!");
echo fread($chat,filesize($rec_user.".txt"));
fclose($chat);
?>
The problem with your code is that, you are not waiting for the response to get over. So over the time, you are sending request after request. This is going to use up all memory in due time. So first wait for the response before sending the next request.
How about this ?
function loadXMLDoc(ctrl) {
var content=ctrl.id;
var xmlhttp = new XMLHttpRequest();
var url = "../user/test/read-text.php?user="+content;
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == XMLHttpRequest.DONE) {
if (xmlhttp.status == 200) {
document.getElementById("area").value=xmlhttp.responseText;
setTimeout(loadXMLDoc(), 1200); //call the function again
} else if (xmlhttp.status == 400) {
console.log('There was an error 400');
} else {
console.log('something else other than 200 was returned');
}
}
};
xmlhttp.open("GET", url, true);
xmlhttp.send();
};
loadXMLDoc(ctrl);
My AJAX will responds with
<script type="text/javascript" src="js/checkersGame.js" ></script>
among other things.
Everything works fine, except the JavaScript is not executed. How do I force it to execute in the response?
My Ajax is as follows:
function loadXMLDoc()
{
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function()
{
if (xmlhttp.readyState == 4 && xmlhttp.status == 200)
{
if (xmlhttp.responseText == 0) {
//do nothing
} else {
document.getElementById("everything").innerHTML=xmlhttp.responseText;
}
}
}
xmlhttp.open("GET", "./poll.php", true);
xmlhttp.send();
}
function checkUpdate() {
loadXMLDoc();
setTimeout(checkUpdate, 10000);
}
checkUpdate();
If you're trying to make an ajax call you should be doing something like
<script type="text/javascript">
$.ajax({
url: "js/checkersGame.js",
}).done(function(reponse) {
//do something with response (replace content of "everything")
});
</script>
You'll have to change xmlhttp.onreadystatechange to return the new content and then change content of "everything" outside the checkesGame.js script. You might have to rework the timeout logic as well..
What is the issue in below script.Here alert "33here" is coming but am not getting my json object.alert(jsontext) is coming blank.if i hit this URL in browser then i am getting JSON object.
xmlHttp = new XMLHttpRequest();
xmlHttp.overrideMimeType("application/json");
alert('11here');
xmlHttp.open( "GET", "http://<hostname>/appsuite/api/login", true );
alert('22here');
alert(xmlHttp);
xmlHttp.send();
alert('33here');
var jsontext= xmlHttp.responseText;
alert(jsontext);
Tried as per suggestions but not working.I am new in javascript / ajax.Any issue in this ?
xmlHttp = new XMLHttpRequest();
xmlHttp.overrideMimeType("application/json");
alert('Hi 11here');
xmlHttp.open( "GET", "http://<hostname>/appsuite/api/login", true );
alert('Hi 22here');
alert(xmlHttp);
xmlHttp.send();
alert('Hi 33here');
xmlHttp.onreadystatechange = function () {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
alert(xmlHttp.responseText);
}
}
Ajax runs asynchronously. You can't depend on when the request from .open will complete or even if it will complete. Any code that depends on the value of an ajax request must be done in the request callback.
xmlHttp.onreadystatechange = function () {
if (xmlHttp.readyState == 4 && xmlHttp.status == 200) {
alert(xmlHttp.responseText);
}
}
A good place to start is looking at the examples provided by MDN: https://developer.mozilla.org/en-US/docs/AJAX/Getting_Started
function alertContents(httpRequest) {
try {
if (httpRequest.readyState === 4) {
if (httpRequest.status === 200) {
alert(httpRequest.responseText);
} else {
alert('There was a problem with the request.');
}
}
}
catch( e ) {
alert('Caught Exception: ' + e.description);
}
}
After the request status reached 200 and the ready state is 4 the response is filled.