Posts

Showing posts from July, 2012

Servlet Filter in OSGi enabled web application

Servlet filters are an important component of web application and it can be used in different scenarios, e.g.: 1) Authenticating requests (ServletRequest) before delegating them to your actual business class (Servlet/Controller). 2) Formatting request (ServletRequest) and response data (ServletResponse) 3) Global/Application level Error handling There are many more uses cases where we can use Servlet filters. A traditional web application is composed of couple of Business classes & data (model), JSP (views), controllers/servlets and few other resources like css, images etc. All these components are packaged as a WAR file and we deploy it on a web/application server. To add/configure a servlet filter in traditional web application we user web.xml configuration file and tag as: springSecurityFilterChain org.springframework.web.filter.DelegatingFilterProxy springSecurityFilterChain /* REQUEST ERROR An OSGi web applica