Spring Security Tutorial Hello World Example – Using XML Configuration

In this Spring Security Tutorial, we will build a Simple Spring MVC Hello World application integrated with Spring Security features. In this application, we will be dealing with two major security areas Authentication and Authorization.

  • Authentication – It is nothing but validating whether the user is a valid user or not.
  • Authorization –  Deciding whether the particular user is allowed to perform a certain activity in the application or not.

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ClassNotFoundException: org.springframework.web.context.ContextLoaderListener

When you happen to work with a Spring MVC Framework based Web application. Then java.lang.ClassNotFoundException: org.springframework.web.context.ContextLoaderListener is a common problem which will be occurring during deployment. Spring MVC throws this exception when it is not able to find the “org.springframework.web.context.ContextLoaderListener” class which loads up the all the Spring MVC configuration files and other configuration files which is declared in the web.xml.

 <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value> 
       /WEB-INF/SpringMVC-servlet.xml, 
       /WEB-INF/SpringSecurity.xml 
    </param-value>
 </context-param>

 <listener>
      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
 </listener>

This exception will mostly happen when you start the server [Read more…]

Spring MVC Flow Diagram

MVC is a design pattern which provides solution to layer an application by seperating Business(Model),Presentation(View) and Control Flow(Controller). The Model contains the business logic and the Controller is responsible for the redirection and the interaction between View component and Model. The View component contains the presentation part of the application. [Read more…]