Posts under ‘Java EE’

Dynamically changing log level with Weblogic, log4j, JMX and WLST

Logging is an uninteresting but nevertheless fundamental part of application development. It is useful not just when you are coding an application but in diagnosing problems of any nature once an application passes into production.
Unfortunately, it is not that clear how to do logging well when developing JEE applications that are to be deployed [...]

Full Weblogic Load-Balancing in EC2 with Amazon ELB

This is the latest post in the series on deploying a Weblogic cluster in Amazon EC2. Previous posts have shown how to create and configure a weblogic cluster using either standard Amazon EC2 images or RightScale ServerTemplates and RightScripts.
In the first post in the series, I explained how to deploy a [...]

Using RightScripts to create a Weblogic cluster in Amazon EC2

In my previous post, I described how to set up a Weblogic cluster in Amazon EC2 using the Oracle-supplied Amazon AMI image. In this post, I will describe how to create a cluster using RightScripts, an alternative technology offered by RightScale.
In Amazon EC2, you work on an AMI - installing software, configuring - until you [...]

Setting up a load-balanced Oracle Weblogic cluster in Amazon EC2

Oracle recently made available a set of AMI images suitable for use with the Amazon EC2 cloud computing platform. I found the two images (32-bit and 64-bit) that contain Weblogic (along with Oracle Enterprise Linux 5 and JRockit) the most interesting of the lot. This article will explain how to set up a basic two-node [...]

HTML Select lists in Spring MVC 2.5 with annotations

In this article, I’d like to talk about the use of HTML select lists with Spring MVC since I’ve had to do some development in this area recently and found little documentation available. Select lists are also known as drop-down lists or combo boxes.
In this post I will use an example web application developed [...]