dev resources

auto truncate using CSS

yaminh — Wed, 29 Jul 2009 23:26:46 +0000

span.ellipsis {
white-space:nowrap;
text-overflow:ellipsis;
overflow:hidden;
width:190px;
display:block;
}

dynamic menu selection using site mesh

yaminh — Tue, 21 Jul 2009 19:55:03 +0000

one of the common features in the web applications is to highlight the menu item that corresponds to the current page so that users know where they are in the application.

here is how:

In decoratee, define the page’s menu information in meta data:

In decorator, make sure to include the decoratee’s header and retrieve the value:

…

Global exception / error handling in Spring framework

yaminh — Tue, 21 Jul 2009 17:22:21 +0000

It’d be nice to have a common handler for exceptions so that each page in the web application does not have to worry about the exception handling at all.

Configure a bean in servlet context (APP-NAME-servlet.xml). errorPage is where it’ll be redirected to in the case of error. If the view resolver is set up in usual way, it’ll be WEB-INF/jsp/errorPage.jsp

errorPage

In the jsp page, you can retrieve the exception from request parameter with the name “exception” and print as follows:

<% Throwable e = (Throwable)request.getAttribute(“exception”); %>

<%=e.toString() %>

Introduction to spring MVC and webflow

yaminh — Tue, 21 Jul 2009 16:20:59 +0000

Good tutorial on getting starting with Spring concepts:
http://www.ervacon.com/products/swf/intro/index.html
This uses the spring 1x version; so some setup cofing and tag syntax are not applicable in 2x version. Nonetheless. it’s a good intro to spring tutorial.

Excellent one on Spring MVC config with webflow:
http://wheelersoftware.com/articles/spring-web-flow-2.0.html
Following the tutorial will give the higher level picture of how spring mvc and webflow plays in running a web application. Easy to follow and has sample resource files.