Session management using login interceptor in Struts 2.

In this application (MyLoginAPI) , i am maintaining session using interceptor.
As you all know, when you call an action, a stack of interceptor executes every time before and after the action.Here i  will create  a custom   interceptor,  login interceptor  ,for the session management.
Here is the scenario:
1. We will set a session in Action class.
2. Create an LoginInterceptor class, and check user exit in session or not.
3. If user exits in the session then call an action called by the user.
4. If user try to access direct url of   home page and if user does not exit in the session then will redirect to login page.
5. If session time out  then redirect to login page.
6. This interceptor will execute before every action except the loginUser action (so we  will not apply this interceptor to loginUser action ).
7. I put home.jsp in the WEB-INF/jsps/user/home.sp , so no one can access directly using directory path.
Here is the Directory Structure:

Login.jsp

Web.xml
Set welcome page as login page.

Struts.xml
Set all configuration here. Here i am creating new stack ,loginStack, which refers to default stack and loginInterceptor.I am applying this loginStack  interceptor satck to  homeAction action.Also defining global results  when authentication failed  it will redirect to login page.

LoginAction.java

LoginInterceptor.java
custom interceptor class for checking user in the session.

 home.jsp

Create this application according to directory structure and run this.Here are the screen shots:

If you will enter wrong username or password then it will show actionError message.

if you will enter username as jkit and password as jkit123 it will redirect to home page.

If you will click on LogOut link it will go back to login page with actionMessage.

 Download Source Code

Click here to download complete source code

Thank you for read this tutorial. See you in next tutorial.

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