web-applications

Beginning Web Development on Plan 9

I've been wanting to program for the Plan 9 operating system for a while. I'd really like to play around with a web app there. Of course, the only language I know for Plan 9 is C, and that doesn't seem ideal for web development. I also understand that it doesn't run apache or mysql either. What is the best way to start coding web apps o...

Book club management application

Hi, Any recommendation for a downloadable web based application (I wan a self/personal install) for managing books within a book club? It should require users to be registered, track who has what books, who has borrowed which book from another member, all with the appropriate and configurable privacy controls of course. ...

How do you maintain java webapps in different staging environments?

You might have a set of properties that is used on the developer machine, which varies from developer to developer, another set for a staging environment, and yet another for the production environment. In a Spring application you may also have beans that you want to load in a local environment but not in a production environment, and ...

How does jstl's sql tag work?

I'm using the following code to query a database from my jsp, but I'd like to know more about what's happening behind the scenes. These are my two primary questions. Does the tag access the ResultSet directly, or is the query result being stored in a datastructure in memory? When is the connection closed? <%@ taglib prefix="sql" uri=...

What is the best way to present data from a very large resultset?

I'm writing a report view of an audit trail, and I need display this in a .jsp. What's the "best" way to get the data from the database to the screen? We're using Spring for dependency injection, Data Access Objects, and Hibernate. I can use hibernate or straight jdbc for this report. If I load all the records into memory I run out of ...

What is the best place to store a configuration file in a java web application (war) ?

I create a web application (war) and deploy it on Tomcat. In the webapp there is a page with a form where an administrator can enter some configuration data. I don't want to store this data in an DBMS, but just in an xml file on the file system. Where to put it? I would like to put the file somewhere in the directory tree where the appl...

WebDev: What is the best way to do a multi-file upload?

I want (barely computer literate) people to easily submit a large number of files (pictures) through my web application. Is there a simple, robust, free/cheap, widely used, standard tool/component (Flash or .NET - sorry no java runtime on the browser) that allows a web user to select a folder or a bunch of files on their computer and upl...

Forced Alpha-Numeric User IDs

I am a programmer at a financial institute. I have recently been told to enforce that all new user id's to have at least one alpha and one numeric. I immediately thought that this was a horrible idea and I would rather not implement it, as I believe this is an anti-feature and of poor user experience. The problem is that I don't have ...

Best J2EE server

At my shop, we use WebSphere, but I hate it with a passion. Updates are a nightmare It's not J2EE compliant Automated deploys are very difficult What is the best J2EE Application Server out there and why? Edit: We see largish scale activity 50k+ daily logins, 50ish Web Applications, Several MDBs and an EJB. ...

Creating a java servlet web application

We have to create a web application for a school project and I'm wondering what best practices are when creating a web application using java servlets, beans and jsp. Specifically I'm curious about servlets. Should a single servlet be created with many methods depending on which page is requested (a single controller) or should a servle...

Does Ajax detoriate performance?

I was just wondering if excess use of Ajax affects performance? In context of big size web-applications how to handle ajax request to control asynchronous requests ...

SSO in webpages

Hello, I would like to know what's the best technique to do single sign-on in web sites. It means that if you enter in more than one website, you will be authenticated in a "transparent" way. I'm using php + curl to set the cookies for the different sites, but i really would like to know if does exist a standard way to do it. ...

Open source app that provides YouSendIt style functionality?

I'm looking for an open source webapp I can install that provides functionality similar to YouSendIt. Functionality desire includes: Users with an account can upload files through a web interface to a server. User can put in email addresses, recipients receive a unique URL to the server allowing them to download the file (which is str...

What do webdeveloper employers look for most in website contracting

I am a software developer looking to make money. I have been self-teaching myself C++, C#, PHP, [X]HTML, CSS, Javascript and SQL for the last four years and am very comfortable with each language listed. During those four years I was living at home; which made it easy to focus on programming more then if I had to support myself. My prob...

GWT or DOJO or something else?

I come from the Microsoft world (and I come in peace). I want to rapidly prototype a web app and if it works out, take it live - and I don't want to use ASP.Net. I am not sure which web application toolkit to use though. Should I use GWT, DOJO...other recommendations? I am open to any server-side language but am looking at RoR, Php or ...

Web interface tool for debian repository?

What is the web interface tool that Debian or Ubuntu use for publicizing their custom repositories on the web? Like packages.debian.org Is such tool open sourced, so that it could be re-used for a custom repository? ...

What are the cons of a web based application

I am going to write a database application for the camp I work for. I am thinking about writing it in C# with a Windows GUI interface but using a browser as the application is seeming more and more appelaing for various reasons. What I am wondering is why someone would not choose to write an application as a web application. Ex. The back...

What tools do you use to security test your web applications?

Are there any tools you recommend for security testing your web applications? I have used WebScarab from OWASP, but find it a bit difficult and unwieldy to use. Is there anything else you would suggest using? ...

What is the best web prototyping tool?

What is the best tool to create a web application interface prototype? ...

Best way to deal with session timeout in web apps?

I am currently building an internal web application used in a factory/warehouse type location. The users will be sharing a single PC between several people, so we need to have a fairly short session timeout to stop people wandering off and leaving the application logged in where someone else can come to the PC and do something under the ...