This week's book giveaway is in the Reactive Progamming forum.
We're giving away four copies of Reactive Streams in Java: Concurrency with RxJava, Reactor, and Akka Streams and have Adam Davis on-line!
See this thread for details.
Win a copy of Reactive Streams in Java: Concurrency with RxJava, Reactor, and Akka Streams this week in the Reactive Progamming forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Liutauras Vilda
  • Junilu Lacar
  • Jeanne Boyarsky
  • Bear Bibeault
Sheriffs:
  • Knute Snortum
  • Tim Cooke
  • Devaka Cooray
Saloon Keepers:
  • Ron McLeod
  • Stephan van Hulst
  • Tim Moores
  • Tim Holloway
  • Carey Brown
Bartenders:
  • Piet Souris
  • Frits Walraven
  • Ganesh Patekar

Passing classes to MVC controllers

 
Ranch Hand
Posts: 71
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I am looking at an example from Wall's Spring Boot In Action, chapter 3. This is a simple Boot MVC project using Spring Security. The default security configuration is overridden by the following class:



This class defines a custom UserDetails implemneted by the Reader class.The Reader class looks like:



There is one controller, ReadingListController:



The SecurityConfig class obtains the Reader from the injected readerRepository which is a JpaRepository<Reader, String>. When you boot up the application and go to localhost:8080/ you are presented with the login page. When you log in, the ReadingListController.readersBooks(Reader reader, Model model) method is called. This is passed a Reader object populated via the username used in logging in. Spring is passing the Reader object, looked up in the database, to the controller. I'm wondering why this happens. I have seen Principal passed to a controller annotated with @AuthenticationPrincipal, and have seen controllers access the SecurityContext to retrieve the principal, but have not seen it done this way. My question is, is Spring passing in Reader because it implements UserDetails? if not, why is Spring passing in the correct Reader object?
 
Maybe he went home and went to bed. And took this tiny ad with him:
Java file APIs (DOC, XLS, PDF, and many more)
https://products.aspose.com/total/java
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
Boost this thread!