web-applications

Fast keyword lookup

I'm writing a program that matches a user submitted query against a list of keywords. The list has about 2000 words and performance is most important. Old Is it faster to store this list in a SQL table or hard code it in the source code? The list does not need to be updated often. If SQL table is faster when which data ...

What are the basic skills needed for web application development ?

I have a good understanding of C, C++ and java. I have an idea about a web app (as a self learning project) but don't know what technologies would be needed to create a web app. Also if possible include some resources that can help explain how these technologies are useful. I am trying to implement a system where sellers can post whatev...

Considering an Erlang web framework to learn and use in production

I’ve started learning Erlang a few days ago and it’s definitely a very interesting language and very suitable for web development (back end at least). I am going to experiment and eventually settle with one Erlang web framework to use for my next project. Since Erlang is “new” is kind of hard to decide which framework to use (i.e. lack o...

file:// urls and Internet Explorer

I have an intranet application, which for many years has made use of the file:// syntax for urls to link to resources on (hopefully) network shares. I know that uploading instead of linking, and perhaps using webDAV would be a better solution, but that is currently outside of the scope of my problem. Until very recently, accessing a fil...

The easiest way to perform asynchronous operations in Java web applications

I have Java servlet-based web applications. I would like to implement some operations in asynchronous manner, like for example writing to a log. I would like to avoid JMS overhead and do something simple. Managing threads myself doesn’t seem such a good idea in a server environment, you would probably need to tap into server thread p...

Can you configure a JBoss web app to be single threaded?

Can you configure a JBoss web application to be single threaded? Ie: only accept one incoming web request (ie: socket connection) at a time? Or is there a way to say max 3 concurrent connections? I know it's an unusual configuration but we were curious.. ...

How to verify if the Web Service caller is my web site?

For security reason, i need to garantee that only web client running an specif web site can access the web service. I'm doing verification over the domain request only, but i need to do some more robust. I think is too easy to break my security check. ...

What technology was used to implement this Rich Web UI?

In another question, someone mentioned this site which blew me away: http://zoomii.com Does anyone know how they implemented this rich UI? At first I thought it was Flash but I don't see the Flash context menu. Did they hide the context menu somehow or is it some other rich web UI technology? ...

How do I change the location of index.jsp in a war file

I have the following project structure: myproject - src - WebContent    - META-INF    - WEB-INF       - jsp         - index.jsp       - lib         - web.xml If my index.jsp comes under the WebContent directory then all is well, but I want it to be under WebContent/WEB-INF/jsp with all the other jsps. What do I have to add to do this. ...

What are the must learn technologies as a web developer today?

After being advised by our friends in this community to learn JSON based on a question i asked. I look at JSON for a while and discovered how great it was. It really got me about what technologies that are out necessary for every web developer. For me i feel ever web developer should have Jquery, JSON, XML, Ajax, SQL, XHTML, and CSS. Y...

running application on client machine

Hello, I have developed two applications, one ASP.NET web application (myWebAppl) and one windows application (myWinAppl). myWebAppl Details : This application has two web pages myPage1.aspx and myPage2.aspx. myWinAppl Details : This is a single instance windows application, which accepts some parameters. Now from myPagep1.aspx (depen...

Can I access keychain from a webapp (javascript) on the iPhone ?

The question is pretty much in the title ;-) Do you know if there is a webkit API for reading/writing from the iPhone keychain ? That is, I would need to access the keychain from a webapp. Thanks in advance ! ...

Passing parameters from silverlight to ASP.net

Hi, I've made a little game in silverlight that records users scores whilst they play. I decided it would be a lot better if I could implement a leaderboard, so I created a database in mySQL to store all the high scores along with names and dates. I have created some communications to the database in ASP.net. This works and I can simpl...

Incremental deployment of java web applications

We have following problem. Developers frequently need to make small changes to our web applications. When I say small, I mean things like correcting the spelling on a web page or similar. Generating and redeploying war archives can be slow and costly in such scenarios. How could we automate and install changes incrementally? For example...

open source web interface to create svn projects?

Is there an open source web front for me to put on my server? I would like to give friends a url so we all can create our own svn projects without restrictions and great speed. optional SSL would be nice with it too. Web interface like trac is a bonus ...

Web Application Problems (web.config errors) HTTP 500.19 with IIS7.5 and ASP.NET v2

This is driving the whole team crazy. There must be some simple mis-configured part of IIS or our Web Server, but every time we try to run out ASP.NET Web Application on IIS 7.5 we get the following error... Here's the error in full: HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related co...

Error message when trying to add a Service Reference.

I'm trying to add a service reference to my silverlight project from a file stored on my hosting server. When I put the link in I get the following error: The document at the url http://www.lloydp.co.uk/Test/WcfRectangleService.dll was not recognized as a known document type. The error message from each known type may help you fix the ...

Simplest way to serve static data from outside the application server in a Java web application

I have a Java web application, using Spring and Struts, running on Tomcat 5.5. I want to load static images that will be shown both on the Web UI and in PDF files generated by the application. Also new images will be added and saved by uploading via the Web UI. It's not a problem to do this by having the static data stored within the th...

Separate web.xml for development and production

Hello! My web.xml is different in devel and production environments. For example in development environment there is no need in security constraints. Typically I deploy new application version as follows: Export Eclipse project to WAR. Upload WAR to the server. Redeploy. The problem is that I have to manually uncomment security con...

tomcat6 application deployment error

Hi, I am new to tomcat and servlets and am trying to deploy my first web application in tomcat and the index.jsp page is showing up blank. It works fine in eclipse. I have the web.xml for the application setup to have the index.jsp as the default page. I am able to run the application and debug it in eclipse but when I export it as a W...