Getting NPE from autowired UserService (Spring MVC + S. Data JPA + Hibernate)

[flat beacon]

Hello everyone! I have a little problem, so I'll be sincerely thankful if someone will help me with it.
It's not spring boot but ordinary Spring MVC + Spring Data JPA + Hibernate + MySQL.

https://stackoverflow.com/questions/77802239/getting-nullpointerexception-from-my-service-class-spring-mvc-spring-data-jpa

Also github with this project:

https://github.com/avevivi/task2.2.3

[unborn beacon]

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[flat beacon]

And folder structure:

[lapis terrace]

how are you running the war

and calling the controllers

http://localhost:8080/task223/allUsers gives 404

anyway try changing usercontroller to just do:

    @Autowired
    public UserController(UserService userService) {
        this.userService = userService;
    }

without the no-args constructor

[flat beacon]

Tomcat runs it

[flat beacon]

I tried some actions with constructor already:

1. Field + @Autowired
2. Field, Constructor + @Autowired
3. Field, Constructor, NoArgsConstructor + @Autowired

If I don't put NoArgsConstructor I keep getting Bean creating error

on controller

[lapis terrace]

should just be all args constructor+autowired

[lapis terrace]

i'm struggling to get your project to run, how are you putting it on tomcat?

[flat beacon]

I just added it through intellij idea

like this

[lapis terrace]

ah ok

[lapis terrace]

what url do you go to

or you haven't got that far?

i get 404 when i deploy your war and go to http://localhost:8080/task223/allUsers

[flat beacon]

oh actually there no /allUsers

it's just "/"

like locaholst first page when you run server

like http://localhost:8080/

also "Application context" in tomcat deployment has to be empty

or /

so it wont redirect

to project name

[lapis terrace]

i got it to work

try changing the versions:
spring data jpa: 3.2.1 -> 2.7.18
spring: 5.3.14 -> 5.3.31
and change java version to 17 (optional)

i also moved everything from src/main/webapp to src/main/java (apart from pages) not sure if you will need to do that too (that's the maven standard)

and usercontroller can just have:

    public UserController(UserService userService) {
        this.userService = userService;
    }

no autowired, no no-args, etc

[flat beacon]

holy it's actually working

i think the main problem was structure

i've missed that I made wrong structure

Thank you so much

[unborn beacon]

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[flat beacon]

@lapis terrace You are lifesaver