Package examples.webapp.filterwebapp

1. how to write a servlet filter
2. how to register a servlet filter in the web.xml file
3. how to use filter ordering

See:
          Description

Filter Example File Summary
authenticate.jsp	Simple Web Application that uses form authentication to restrict login to certain users.
web.xml	Web Application deployment descriptor. The descriptor configures servlets, a welcome file (.html), a login page (.jsp),and an error page (.jsp).
index.html	Welcome page for the Filter Web Application
error.jsp	Error page for the Filter Web Application
logFilter.java	Log filter servlet for the Filter Web Application
loginFilter.java	Login filter servlet for the Filter Web Application
loginForm.jsp	Login form page for the Filter Web Application
sessionServlet.java	Session servlet for the Filter Web Application

 

Package examples.webapp.filterwebapp Description

The Web Application filterWebApp registers two filters for the servlet sessionServlet. The two filters are:

• loginFilter: redirects the request to a Login page if the user has not been authenticated yet. Once the user is authenticated by the loginFilter, the server serves up the SessionServlet. The class weblogic.servlet.security.ServletAuthentication is used for authentication. If the login fails, the user is redirected to the error page.
• logFilter: finds the total time taken to complete a request for a specific page.

1. loginFilter
2. logFilter

Perform the following steps in order to build and run the example:

1. Build the example
2. Run the example

Build the Example

1. Set up your development shell as described in Setting up your environment.

2. Compile the example by executing an ant build script or a command.
   • An ant build script is available in the SAMPLES_HOME\server\src\examples\webapp\filterWebApp directory. Enter the following command to execute the build script:

     $ ant

Run the Example

1. Start WebLogic Server with the examples configuration.

2. Load the filterWebApp Web Application into a browser using a URL such as:

     http://hostname:port/filterWebApp

   where:

   hostname

   Host name of the WebLogic Server

   port

   Port where the WebLogic Server is listening for connections

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   Documentation is available at http://e-docs.bea.com/wls/docs61/

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