I want to count banner impressions in my web page. For Example I have a image slider and I need to count how many times each image displayed in my page, And each individual image count should have to save in the database.
I want write this in java or javascript
Can anyone Help me please.
Thanks
How about
$(function(){
$('img').load(function(){
$.post('update.php', {img: $(this).attr("id")});
});
});
And in update.php you will get a post request with $_POST['img'] = Image-Id. Use it to update the count record in your database with +1.
Keep in mind this will create a new request to update.php for each image that is loaded.
PS: You need jQuery.
Related
I'm trying to go to the next page on an aspx form using JSoup.
I can find the next button itself. I just don't know what to do with it.
The idea is that, for that particular form, if the next button exists, we would simulate a click and go to the next page. But any other solution other than simulating a click would be fine, as long as we get to the next page.
I also need to update the results once we go to the next page.
// Connecting, entering the data and making the first request
...
// Submitting the form
Document searchResults = form.submit().cookies(resp.cookies()).post();
// reading the data. Everything up to this point works as expected
...
// finding the next button (this part also works as expected)
Element nextBtn = searchResults.getElementById("ctl00_MainContent_btnNext");
if (nextBtn != null) {
// click? I don't know what to do here.
searchResults = ??? // updating the search results to include the results from the second page
}
The page itself is www.somePage.com/someForm.aspx, so I can't use the solution stated here:
Android jsoup, how to select item and go to next page
I was unable to find any other suggestions.
Any ideas? What am I missing? Is simulating a click even possible with JSoup? The documentation says nothing about it. But I'm sure people are able to navigate these type of forms.
Also, I'm working with Android, so I can't use HtmlUnit, as stated here:
importing HtmlUnit to Android project
Thank you.
This is not Jsoup work! Jsoup is a parser with a nice DOM API that allows you to deal with wild HTML as if it were well-formed and not crippled with errors and nonsenses.
In your specific case you may be able to scrape the target site directly from your app by finding links and retrieving HTML pages recursively. Something like
private void scrape(String url) {
Document doc = Jsoup.connect(url).get();
// Analyze current document content here...
// Then continue
for (Element link : doc.select(".ctl00_MainContent_btnNext")) {
scrape(link.attr("href"));
}
}
But in the general case what you want to do requires far more functionality that Jsoup provides: a user agent capable of interpreting HTML, CSS and Javascript with a scriptable API that you can call from your app to simulate a click. For example Selenium:
WebDriver driver = new FirefoxDriver();
driver.findElement(By.name("next_page")).click();
Selenium can't be bundled in an Android app, so I suggest you put your Selenium code on a server and make it accessible with some REST API.
Pagination on ASPX can be a pain. The best thing you can do is to use your browser to see the data parameters it sends to the server, then try to emulate this in code.
I've written a detailed tutorial on how to handle it here but it uses the univocity HTML parser (which is commercial closed source) instead of JSoup.
In short, you should try to get a <form> element with id="aspnetForm", and read the form elements to generate a POST request for the next page. The form data usually comes out with stuff such as this:
__EVENTTARGET =
__EVENTARGUMENT =
__VIEWSTATE = /wEPDwUKMTU0OTkzNjExNg8WBB4JU29ydE9yZ ... a very long string
__VIEWSTATEGENERATOR = 32423F7A
... and other gibberish
Then you need to look at each one of these and compare with what your browser sends. Sometimes you need to get values from other elements of the page to generate a similar POST request. You may have to REMOVE some of the parameters you get - again, make your code behave exactly the same as your browser
After some (frustrating) trial and error you will get it working. The server should return a pipe-delimited result, which you can break down and parse. Something like:
25081|updatePanel|ctl00_ContentPlaceHolder1_pnlgrdSearchResult|
<div>
<div style="font-weight: bold;">
... more stuff
|__EVENTARGUMENT||343908|hiddenField|__VIEWSTATE|/wEPDwU... another very long string ...1Pni|8|hiddenField|__VIEWSTATEGENERATOR|32423F7A| other gibberish
From THAT sort of response you need to generate new POST requests for the subsequent pages, for example:
String viewState = substringBetween(ajaxResponse, "__VIEWSTATE|", "|");
Then:
request.setDataParameter("__VIEWSTATE", viewState);
There are will be more data parameters to get from each response. But a lot depends on the site you are targeting.
Hope this helps a little.
I am making an app for tracking courier. the user will enter tracking no.in apps textview and click submit this will open couriers website tracking page i.e fedex in a webview inside the App.
Now i want a way to pass those tracking no from my app to webview's website input field and click the submit button on the website automatically
I don't think this the way you should do that, you should look for a url that takes the tracking location number as a query and return the proper page
something like that http://example.com/over/there?number=441222
Update
I've looked at the page you've mentioned in the comments and all I can get is that it submits a post request as a form input
POST url: https://www.myutiitsl.com/PAN_ONLINE/PANTrackerSearch.action
parameter names are
appNo
panNo
I wish I had more knowledge as a web developer but this the way that could work with you try to make sure the post url is correct and the parameters I mentioned also correct and it should work with you
I'm making an app which will display quite a lot of information in text. I would love to be able to change this text without having to do any updates to the app itself and there-fore it would be great to just get the text from a simple HTMl-file from a server and display it in a textview. Is this possible?
TL;DR: Is there a way to display text from a remote HTML-file in a textview?
-Alexander
Your app can send a request to get your HTML page and then set the value of a TextView to be the content of the page as shown in this example: https://developer.android.com/training/volley/simple.html
The problem I'm having is the following:
I have an app with two separate modes: A WebView for browsing and a custom Canvas. The custom Canvas captures handwriting samples for language placement exams. Here's how it works. A user logs in to Moodle via the WebView. After they log in, they navigate to a Quiz inside Moodle. They click a link on one of the Quiz's questions and this launches an Intent which hides the WebView and shows the Canvas. The user then writes (using a stylus) on the Canvas. When a user is finished writing their essay (or whatever), they press a button that uploads an image file to Moodle. I am able to upload images to a point, it's getting them to show up in the HTML page that the user clicked the link in originally (see above) and to get Moodle to commit them to permanent storage that is the problem. Normally this is all accomplished through AJAX (really AJAJ since it's JavaScript and JSON) and when the user drops a file on this one component, the component refreshes and uploads the file.
Here is the problem: I need the WebView so that students can log in to Moodle through Shibboleth. But because the underlying JavaScript in the browser makes AJAX calls to the Moodle server and since the Java side of Android doesn't have access to the DOM, I have use the Apache HTTP components library to make some of the connections below basically to preserve the state of the HTML page in WebView.
In a desktop browser on, say, Windows, I use WebScarab to monitor the browser's requests and this is what I see: the browser uploads a file to Moodle via five successive calls to the following scripts:
POST https://[moodle website]/repository/repository_ajax.php [posts multipart form data]
POST https://[moodle website]/repository/draftfiles_ajax.php [posts some params]
GET https://[moodle website]/draftfile.php/[some_id]/user/draft/[some_id]/[somefilename.png] [returns an icon of the image for a filepicker from YUI]
POST https://[moodle website]/mod/quiz/processattempt.php [returns HTML page]
GET https://[moodle website]/mod/quiz/summary.php [returns HTML page]
Some of these scripts return, as you'd expect, JSON data since they're AJAX and not HTML. The final two calls (4 & 5) return HTML. Now, I can make all of those calls in succession in either the WebView or the Apache HTTP library, but if I do so with WebView, only JSON data is returned to the WebView in calls 1-3 (WebView treats the JSON data as a page and displays it wiping out whatever HTML page was displayed in it). If I capture and process the JSON data using the Apache HTTP library in Java, then the JavaScript components internal to the page do not get updated. If I split the calls so that I send only calls 4 & 5 to the WebView, the HTML merely returns WebView to the first question of the exam and Moodle acts as if I haven't uploaded anything.
I can verify that files are uploading if I manually refresh (press a link) the JavaScript UI elements in the page. I can't expect students to do this, though, because the link to do so is very tiny and it's not obvious that it does a refresh. I need a way to programmatically refresh this one element (it's part of YUI) or to get Android and the Java side to play more nicely with the JavaScript/DOM side.
My question is: does anyone know a way to 1) fire off a drag and drop event using YUI to an element inside an HTML page or 2) a way to consume the JSON data and pass it to an element inside the HTML page.
I'm banging my head against a wall trying to figure this out.
OK, so I figured out that: javascript:document.getElementsByClassName(\"[name of link here]\")[0].click() works in Chrome on the desktop but doesn't work if I pass it to WebView.loadURL(). I just need to be able to simulate that click event reliably in WebView. It appears not to support click(). Anyone have any ideas?
The winning code is:
el = document.getElementsByClassName("[some element]")[0];
var event = document.createEvent("MouseEvents");
event.initEvent("click", true, true);
el.dispatchEvent(event);
This selects the link at [some element] and thereby fires an AJAX request that refreshes the FilePicker. For those working with Moodle, I had to add the above code to the same quiz question that handles so it is invoked by putting that code in its own function and calling it with WebView.loadURL("javascript:myRefreshFunction()").
I have a website loaded in WebView on Android 1.6 and I want to get the HTML-Code of a Site which was generated when the user hits Submit. The parameter get submitted by GET, if that's important.
Then I want to change the HTML-Code and show it to the user, without showing the real Answer-page first.
Maybe I could use onFormResubmission() from WebViewClient? But I really have no idea how.
Thanks for the help!
This is not possible with WebView's API, because you cannot "get the HTML-Code of a Site" that was retrieved by WebView. You are welcome to perform your own HTTP operations using HttpClient and feed the results to WebView via loadData() or loadDataWithBaseURL().