I need to submit some information to my servlet. Once I submit this information, I'll receive a PDF from the servlet based on the data. I know I can construct the URL and pass parameters to it using HTTP GET. Suppose my form data is too large.So is it possible to do this using a hidden iFrame? I'll submit the parameters using the hidden iFrame and in my servlet, I write the PDF to the response stream. Will this work? If it works can someone please suggest me how to do this?
You'll need to set the target to the iframe you want to submit it to.
<form action='...' name='theform' target='theiframe'>
.
.
.
<iframe name='theiframe' src='...'>
</iframe>
</form>
This forum post has some details : http://forums.powweb.com/showthread.php?t=77213
Hm, which way do you want to sent the data using your iframe? I think you're limited to either GET or POST there, too. Means, if your data is too large, the iframe won't help sending your data.
What server backend do you use? You might be able to configure the maximum size of request data (post / get).
Please have a look at this message for more information about this.
In my eyes, using the hidden Iframe method is very old school, almost like before the great days of Ajax methods.
You can use jquery Ajax call and serialize your full form passing all variables. Remember to check your request size in your config, in case it post reaches maximum size.
Related
var dataToSend = "randomStuff";
I want dataToSend to be send via POST into
<textarea class="form-control" name="list" rows="1" id="comment"></textarea>
this specific textarea is not local, its a random html page.
How do I do that?
I've tried several things, but nothing seems to work. Can someone bring me onto the right path? (Without jquery if possible, but appreciate any suggestions,...)
Thank you.
You can't. That isn't how POSTing works.
When you make an HTTP request you can include data in in various ways (the query string on the URL, the body of the request, cookies, custom HTTP headers, etc). When people talk about POSTing data, they usually mean the body of the request.
The data is sent to the HTTP server that the URL points to.
It is the responsibility of the server (or possibly JavaScript embedded in the document returned by the server) to do something with that data.
It could read data from the request and put it in then HTML document it responds with. That technique could be used to set a default value for a textarea.
The important point is that it is the responsibility of the site providing the textarea.
There is no way for code on a website to populate the value of a textarea on an arbitrary third party site.
It is, however, possible to make a POST request to the end point that the form containing the textarea points to.
The simplest way is to make a form with the same action and a form control with the same name (list).
That form could be populated and submitted by JavaScript since it is on the same page.
So, I know that when I submit a form whose method is POST that the server receives the contents of that form and then processes them accordingly, and then returns a page with the desired content. What I am trying to learn is what exact query url is being passed to the server side script when I submit a form on a website that does not belong to me. The reason I want this query string is so that I can make use of the server side script programatically with my own data. There is no public API served by this website, but I would like to formulate my own.
So my question is, is there a way to intercept the POST as a query string URL? Perhaps by using a javascript console in browser?
I know I can look at the source code for the page and find the names/values of the form fields. However, there also happens to be a hidden field on this page whose properties are set by javascript during validation at submission time. How should I go about this?
You can use an extension for intercept the data : Tamper Data on FireFox
https://addons.mozilla.org/fr/firefox/addon/tamper-data/
You can intercept and modify all headers requests
I'm trying to implement a third party tool. This tool uses a form with the post method to send data to their site. Is there any way that I can mimic this action without using the form tag? I don't know much about jquery post and same domain (this is sending it off to a different domain) so I don't know if there would be an issue with this.
Everything that I've found in my search talks about ajax and returning content after you post but all I want to do is to take the customer to the third party's site after they have submitted the form.
thanks!
You cannot send data to a different domain with AJAX. Its not permitted by the browser. As for can you do it without a form element, yes. Just encode the data as it would look in a browser get URL like http://site.com/search?query=I+love+js&perpage=10&page=2
datatosend="field1="+value+"&field2="+value2
$.post(url,datatosend,function(data){//do something with data. location.href="new location"}
Yes you can.
Check out this post.
https://stackoverflow.com/a/1078991
also found in the docs
http://api.jquery.com/jQuery.post/
http://api.jquery.com/jQuery.post/
and then you can do a location.replace() when it is completed
function replaceDoc()
{
window.location.replace("http://www.thatsite.com")
}
I am trying to implement GSA(Google Search Appliance) in my app. I want to use the REST(JSON) call that the GSA provides. The point for this question is that, the GSA needs a POST request in order to return the JSON response.
Now when I made a new dummy HTML page with a form and make a POST request with parameters I get a successful response(JSON)
But, when I try using the $.post(...) method to send a POST request to the URL I am not getting the actual response, but some error page.
I just wanted to know is there a difference between a standard submit and an ajax form submit. If yes, is there any workaround for this situation.
Please Help. Thanks in Advance.
If you want to submit the form through ajax but in the conventional way, You should have a look at jquery form plugin . Just make your submit button to type button and on click submit your form thorugh .ajaxSubmit(). I think this will solve your problem.
GSA search protocol is based on HTTP GET. All search parameters need to be passed in via query string. Also, out of box, GSA only returns either HTML or XML results. You could apply an xslt that transforms xml to JSON -- but I'm yet to find one that works really well (i.e., I've found a couple but they don't return valid JSON in all instances).
I am working on a basic HTML page that requires the user to send details to a script located on a third-party website. What I require is for the user to fill out a form on my web page, and have that information submitted to another third-party form.
I do not wish to return anything to the user, other than whether the submission was successful or not. I also do not want the user to have to go to this third-party site to submit using their form.
It was suggested by the website itself to use an iframe and hold its form on your page, but I was wondering what other, preferably better methods are available to me. It'd be nice if there were some form of jQuery/js code I could use to do such a thing.
It'd be nice if there were some form
of jQuery/js code I could use to do
such a thing.
One way is to use jQuery's $.ajax or $.post methods like this:
$.ajax({
url: url,
success: function(data) {
alert('succeeded');
}
});
Maybe you could try cURL with CURLOPT_POST and CURLOPT_POSTFIELDS?
well it depends if you have control over the other website as well. as in you are able to access the code.
If you are you can use JSONP to pass the values and get a response, but to do it you will have to assign a callback that is sent and then formatted at the front of a JSON object for it to work (they do this for security).
The other option is to use a php ob_start() function. (Note: this will only work if the form you are trying to submit these values to allow $_GET to be used to proccess the form)
ob_start();
include('http://wwww.anotherwebsite.com?key1=value1&key2=value2&key3=value3');
$returnString = ob_get_contents();
ob_end_clean();
So then from here $returnString is the result, which you can basically search (strpos() to see if true is how I would do it) in php to find key words to see if it was successful or not or what ever you need to check for.
But again, this only works if the form on the remote server uses $_GET and not $_POST (or allows both through globals).
I know this is a php solution, but a warning is that for security purposes, there are serious restrictions on what javascript can do cross server.. the best javascript way to do cross server is JSONP, which jQuery does support so you might want to look into that.. but as I mentioned, for it to work you need to have a callback be able to be sent back with the response, and the response needs to be in a jsonp object format.. (basically you either need to 1. have the other server have a jsonp api for you to use or you have control over the other server's server side files to make the changes needed).
Do you want like that? It's simple form submitting to another website. But, I can't check whether it's successfully submitted or not.
<form action="http://www.another.com">
<input name="myInput" type="text">
<input type="submit" value="Submit">
</form>