I told the audience that I would post the presentation and was planning on recording screencasts of the various demos so the online version of the presentation would make more sense.
Today, I've finished the second screencast showing how to implement security with Spring Security. Below is the presentation with the screencast embedded on slide 16 as well as a step-by-step tutorial. Download and Run the Application To begin, download the application you'll be implementing security in.
You'll need Java 6 and Maven installed to run the app. You'll see it's a simple CRUD application for users and there's no login required to add or delete users. Implement Basic Authentication The first step is to protect the list screen so people have to login to view users. To do this, you'll need to create a Spring context file that contains Spring Security's configuration. The last bean, userSecurityAdvice, is an aspect that's needed to override some behavior in AppFuse.
You won't need this normally when implementing Spring Security. And add its filter-mapping just after the rewriteFilter in the filter-mappings section order is important! You don't need to add any dependencies in your pom.
Spring Security is a bit easier to configure than Java EE 6 out-of-the-box, mostly because it doesn't require you to configure your container. After logging in, you can try to logout by clicking the "Logout" link in the top-right corner. This calls a LogoutController with the following code that logs the user out. I have written a basic configuration for this demo:. If not provided, spring will provide an inbuilt login page to user. I am using XML based user service i.
To use this king of setup, authentication-manager is setup with inline in-built user details service. In more real time applications, this is going to be some user service fetching data from remote database. I will reuse the controller and will add additional mappings and handler methods in controller.
The updated controller having all method handlers looks like this:. We have now configured our application with security configuration and controller handlers. Its time to write the views which are essentially JSP files. Most important addition in jsp files is login. This file have the form which contains text boxes for username and password field. Lets see how it is written:. By default, spring auto generates and configures a UsernamePasswordAuthenticationFilter bean.
On submitting this form, UsernamePasswordAuthenticationFilter will match the username and password as configured in authentication-provider settings in application-security. This jsp file will come in user screen when user will try to authenticate with invalid user name and password combinations. It will show the corresponding message as configured in message. Its time to test the application.
Simply deploy the application in any server e. Now, do following steps:. I hope this spring mvc login example has been able to put some light on basic spring security mechanism using xml configurations. If you any question on this Spring security login form example , drop me a comment. Subscribe to get new post notifications, industry updates, best practices, and much more. Directly into your inbox, for free.
Try code given in this link for custom user details service. Description The origin server did not find a current representation for the target resource or is not willing to disclose that one exists. This path looks bad to me. Please download the sourcecode and run as it is given in last section. Hi Lokesh, Fine explanation. Great work. Hi Lokesh , Thank you for the nice article explained beautifully with such an ease. Spring AOP and Security — both are entirely different things for different purposes.
Regarding reliability, as I said both are different things and should not be compared. For only input validation, I suggest to use jQuery. NestedServletException: Request processing failed; nested exception is org.
Could you please let me know how we can developed password reset functionality in this example? Your fast inputs are appreciated. Hi Lokesh, Thanks for the tutorials.
I am facing one issue though. As soon as I try to login via the custom login page, I always get redirected back to the same login page regardless of entering the correct or incorrect login for the following configuration:.
However when I try to use inbuilt login page, it seems to be working fine in case of valid and invalid credentials for the following configuration:. Thanks for very nice example. Is this restricted by sequrity filter or not. Right now application is secured only through login page. Once authenticated user can perform any action inside application. To add action specific security, use method level security. Could you please guide?
MappingException: Unknown entity: from employee at org. Also Thanks M. Deinum for his comment. The HttpServletRequest. Returns true if the current principal has the specified role. Spring boot does some internal works automagically for you, but to do that automagical work you need to configure it properly. This is the answer for your question 2, spring automagically provides the view resolver if configuration is right. Ok, now lets move to question 1. The parent project provides some features.
Add a comment. Active Oldest Votes. Biju Kunjummen Biju Kunjummen I have this in my config. It gets redirected to the login page just that the form-login submit does not work. Wondering if this is relevant mark. Here are the configuration full files github. Sorry, I misunderstood your issue then. Can you confirm your flow works without Spring security in place? Also works with the updated web. Only the login form should have the anonymous permission.
Michael Michael 9, 16 16 gold badges 57 57 silver badges 96 96 bronze badges. My understanding is the UsernamePasswordAuthenticationFilter should be invoked on every web request that goes through the web app. Is that right? It seems it is not doing so.
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