ServletContextListener Example


This tips explains the how to use ServletContextListener. There will be only one ServletContext for each web application. ServletContext will be created while deploying the application. Once the ServletContext is created, it will be used by all the servlets and jsp files in the same application. ServletContext is also called as the application scope variables […]

Dynamic Attributes in Tag File in JSP 2.0


As we know that we can develop custom tag library as a simple tag file in JSP 2.0 and these tag files can accept attributes from the invoking JSP page. But one drawback of this approach is that we need to declare all the attributes in the tag file. JSP 2.0 provides a feature called […]

Variable Directive in JSP 2.0 Custom Tags


This tips explains how to use the variable directive in the custom tags in JSP 2.0. There is time when JSP page needs to access the variable declared inside the Tag files. In the previous version we have to extend the tag library to declare the variables and need the special handling for those variables. […]

Custom Tags in JSP 2.0


Tag Files in JSP 2.0 This tips explains about what are the advantages in the Custom Tags in JSP 2.0. It also compares it with the previous JSP versions. also read: Java EE Tutorials Servlets Interview Questions New Features in Servlets 3.0 Asynchronous Servlets in Servlets 3 Lets look into the tips for more detail. […]

Custom Tag Libraries and Tag Files in JSP 2.0


With previous versions of JSP developing custom tag libraries was possible only by writing Java classes. As a result knowledge of Java was a must. JSP 2.0 introduces a new way of developing custom tag library using plain JSP. This enables JSP developers, who dont know Java, to develop custom tag libraries as Tag files. […]

Error Pages in JSP 2.0


We can configure error pages in jsp and servlets to direct the control to a custom error page, showing a friendly error message to the user when an exception is thrown in the page. But tracking or logging the exception information is not very easy in JSP 1.2. also read: Java EE Tutorials Servlets Interview […]

New Features in Java 7.0 – Part 1


This article discusses the new features that are available in Java 7.0. Java 7.0 comes with bunch of new features – language level changes as well as API level changes and this article concentrates on the new API features such as Cache API, New Date and Time API and New IO 2 as well as […]

Ternary Operator in JSP 2.0 Expression Language(EL)


A very common need in a JSP page is to include a piece of template text only if a certain condition is true. With JSP 1.2 and JSTL 1.1, this is typically done using a block, but that’s a very verbose solution. also read: Java EE Tutorials Servlets Interview Questions New Features in Servlets 3.0 […]

Annotations and Dependency Injection in EJB 3.0


This Article presents two important new features of EJB 3.0 which is bundled with Java EE 5.0 specification, which are Annotations and Dependency Injection. The solid reason for this article is , it will give us an idea how these features are used, so on their encounter in other articles of EJB3.0, we can understand […]

Aspect Oriented Programming (AOP) in Spring 2.5


This article publishes the book excerpt from the book Spring 2.5 Aspect Oriented Programming by Massimiliano Dessi.The following are the list of chapters in the book and brief description inside each chapters. If you are interested in receiving the future articles on book reviews and latest news on Java, please subscribe here. Chapter 1 introduces […]