Spring Security - Lesson 2 - Implementing the UserDetailsService

The Spring Security stream will teach you how to use Spring Security, from the basic authentication and authorization architecture to using OAuth 2.

[RoggerElfo]

1:28 diagram
9:40 start coding
16:13 creating database tables
27:35 creating configuration class
30:13 implementation of UserDetailService
39:51 creating user that implements UserDetails

[nickolayonischenko]

Amazing! The most consistent explanation you can find in free tutorials.

[rajdipbhattacharya]

hardly anyone shares industry-level knowledge in youtube tutorials. Thanks! <3

[mandardeshpande]

Thank you so much Laur. Even the highly paid content cannot match the depth and clarity that your free courses provide.

[alesblaze]

1 Like from my side is really less to show you how much i appreciate your teachings, your time and your energy you are giving us. Thanks a lot.

[prasannakapu]

Wonderful! Awesome explanation. Finally I come across a Place to understand basics and deep dive

[anudeepgrandhi]

Great explanation even beginner will understand kudos to ur work

[lenigaussgauss]

Thank you sir you are the best. Always at the top level

[codecoffee-farsi]

Thank you very much Laurentiu, you are great!

[nickolayonischenko]

Note for all who wants to implement it without boot. User details service implementation has to be a component. The security configuration class needs explicit declaration of base package with @ComponentScan even those you have it in root configuration class.

[sumit]

Thanks for the video. It's really helping in understanding the fundamentals of Spring security module.
can you please do series on Spring boot with thymeleaf.

[suryasikharej]

Hi I want to know why you did not use @EnableJpaRepositories and @EntityScan annotation? Mine did not work without these two annotation.

[kreander]

Hello Laurentiu, first of all thanks for all your hard work on these youtube series.

In the souce code from the Manning site, in chapter ssia-ch2-ex4, I notice that to unit test the configuration that uses the AuthenticationManagerBuilder to configure the UserDetailsService, you use the annotation @WithUserDetails. That test however only works with the test-specific configuration defined in TestConfig. Presumably because in the actual configuration, the UserDetailsService is not defined as a @Bean. Is that test then not testing the wrong configuration?

When I use @WithMockUser, the test does pass without a separate test configuration. Would that annotation be more appropriate here? What is the difference and when would it be appropriate to use one or the other?

[unam]

Thank you for the awesome tutorials. Could you please clarify me at 36.26 where its mentioned that constructor injection is recommended rather than field injection. As Implementation for the UserRepository is done by Spring, is it possible to use it in the ProjectConfig where the UserDetailsService is instantiated. Thanks in advance - Manu

[timefly]

Hi One doubt,
At 47:56, In Projectconfig clas, A method is being called by spring security userDetailService() which return only just instance of JPAUserDetailService only, My doubt is how then loadByUserName() method is being called.

[urrahman]

In your project you havent called the loadUserByUsername() with any value as parameter, how it is validating username with mysql db's username value and letting the postman request enter into the application?

[webeltech]

Hey. How have you been?. Today I was trying to create a spring boot application with spring security but the IDE is telling me that WebSecurityConfigurerAdapater is deprecated. How true is it and if it is what is the alternative to Thank you for your assistance.

[AbhishekJoshi-fiis]

Hii
Laur Spilca , where are you defining the table name and database name ?

[maksadnahibhoolna-wcef]

hey @laurspilca how does using @Bean annotation at 31:09 creates an instance of JPAUserDetailsService class (if we don't annotate this class with @Component) as shown at 31:14

[mikehenshaw]

Great explanation! My only concern is when I use MSSQL, I can't retrieve the User by Username like MySQL (I only change the config in application.properties file)