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Closed 10 years ago.
Ours is a java web application on struts2 framework. Currently for contact us form and download reports form we are using Recaptcha. We have to refresh the captcha at least 4-5 times to get the readable words. We are looking for some simple alternative to Recaptcha which prevents getting Spam requests.
Guys can you suggest me a replacement for Recaptcha.
Yes, another example of an alternate captcha is this: you can make a slide of images, and place one behind the slider. Then, let the human chose from the slider which image is behind the slider.
(I have seen it in a forum, but I don't remember the name of website where I have seen this type of captcha)
You can also make your forum like no one can copy paste anything there, means pasting is restricted there.
I found this! http://areyouahuman.com/
Just discovered it. Plan to use on my next project.
Images are far more easy to identify compared to garbled text. They are more difficult to break too. You could use image-identification CAPTCHAs such as these.
Related
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Closed 10 years ago.
i am trying to learn ASP.Net MVC2/3 and trying to work on a web project that will actually be a blogging project. So i would have the similar structure as a normal blog looks like. I would have title, blog entry, some tags and other stuff. Now i want suggestion on using database. Since the blog entry i.e. an article would be a text with multiple paragraphs and might also contain some images. So i was wondering what kind of database should be good to store these texts. I can use SQL for storing text but not sure if it would be fast enough. Any suggestions on where can i get or i should say learn about good database design for such application.
Also it would be helpful if anyone can suggest a good source for ASP.net MVC3 learning. I can look online for tutorials, but some good books for beginners would be helpful.
Any suggestion would be great.
Thanks. :)
download sqlExpress from Microsoft, it will be plenty fast enough to store/retrieve text, it's free and it works well with .net
I think the easiest way to store the posts would be to store the text as HTML, with tags that point to somewhere in your file structure. When you add an image, you upload it to that directory, and generate a link for it.
Take a look at how wordpress works, that should give you plenty of ideas for writing your own code.
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Closed 10 years ago.
I am trying to develop a web based document browsing system, that could look possibly something like : http://www.cell.com/trends/biochemical-sciences (then click on "Protein kinases: evolution of dynamic regulatory proteins").
What web technologies should I look at using? AJAX?
Thanks in advance.
Andy
AJAX could do the trick, but you'll need more than that.
Getting document sections and pictures with AJAX is half (maybe less than half) the job, as you'll need all the backend code to upload documents, maybe extract document sections from PDF, store documents hierarchically, retrieve the document hierarchy and pictures, and so on.
Moreover, you don't even told us what server-side technology you are going to use... Java, PHP, DotNet... and the database... PostgreSQL, MySQL, SQL Server, Oracle, end the list goes on.
About the AJAX side and web UI, I suggest you take a look at jQuery and jQuery UI.
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Closed 12 years ago.
I know that there are lots to read on the net about AJAX , but if U want to explained it for a non-web-technical person what would you say ?
"A style of web page where you can edit stuff without having to wait for the whole page to reload all the time"
It's a mechanism to communicate with webserver (backend) without refreshing the whole page. :)
But I believe this site is not a good place to ask these kind of questions.
"A way of updating a web page in sections, instead of all at once."
It's a technology that allows you to download only select portions of the web page, providing a faster and less disruptive page update.
Prior to AJAX, if you need PEN, you must have to buy PAPER and other things which you already have.
In AJAX, you get what you need.
A technique which escape your server from extra burden and fasten your responses
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Closed 10 years ago.
I'm looking for an in browser click-n-drag type editor for editing directed labeled graphs.
All I need is a widget to support the editing and the ability to submit (AJAX, form, whatever) the resulting set of origin/label/terminus tuples. It's not what I need it for, but a GUI editor for simple GraphViz cases would be nearly ideal. This UML widget is kinds along the right track.
And I'm kind of restricted to open source, freeware and public domain.
Some other close, but not quite options:
arbor.js (view, not edit. And I don't need the auto layout.)
springy (ditto.)
You could try using Znode. A simple open source flow chart editor I created over the christmas break. It uses jQuery and Raphael. It doesn't really make use of html5 features because I wanted high browser compatability - I've tested in firefox, safari, chrome and ie6-8. It's still in development but it's stable.
Here is more info:
http://www.zreference.com/znode/
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Closed 10 years ago.
I have made a flex app deep link before but now I want to make an ajax app deep link.
I have no idea where to start.
I assume I need a way to listen for when the #hash in the url changes and be able to read it. And I assume I need a way to update the #hash in the url.
Does anyone know how to do all that?
Thanks!
You're on the right track.
For each state of the ajax page that you want to be able to link to, change the hash tag:
window.location.hash = "this_state"
When the page loads you'll need to check if the window.location.hash value matches one of your states and if it does make the app go to that state. ("Listening" for the change of the hash tag is the page loading.)
This way your users can bookmark and share the states, making for a much more usable app, so props for caring about it.
have a look at SWFAddress (deep linking for both Flash and Ajax)
UPDATE: if you use jQuery look at their jQuery Address
If you're using jquery you might want to have a look at this:
Deep Linking with jQuery Address plugin