Spring 引导：使用 BaseController 进行 CRUD 操作时如何防止 URL 覆盖

Question

I have a Spring Boot application and I have implemented a base controller that handles CRUD operations for all my entities. I have also created a BrandController that extends the base controller and a BrandRepository that implements CrudRepository. The problem is that when I try to access the endpoints for the BrandController such as /api/brands, I get a 404 error, but I can access them on /brands How can I fix this so that the endpoints are accessible with /api/entitys?

Here is the code for the BrandController:

package parc.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import parc.model.concrete.Brand;
import parc.repository.BrandRepository;

@RestController
@RequestMapping("/api/brands")
public class BrandController extends BaseController<Brand, BrandRepository> {

    private final BrandRepository repository;

    public BrandController(BrandRepository repository) {
        super(repository);
        this.repository = repository;
    }

}

Here is the code for the BaseController:

package parc.controller;

import org.springframework.data.repository.CrudRepository;
import org.springframework.web.bind.annotation.*;

import java.util.List;

public class BaseController<T, R extends CrudRepository<T, Long>> {

    private R repository;

    public BaseController(R repository) {
        this.repository = repository;
    }

    @GetMapping("/")
    public List<T> getAll() {
        return (List<T>) repository.findAll();
    }

    @PostMapping("/")
    public T create(@RequestBody T entity) {
        return repository.save(entity);
    }

    @GetMapping("/{id}")
    public T getById(@PathVariable long id) {
        return repository.findById(id).orElse(null);
    }

    @PutMapping("/{id}")
    public T update(@PathVariable long id, @RequestBody T entity) {
        return repository.save(entity);
    }

    @DeleteMapping("/{id}")
    public void delete(@PathVariable long id) {
        repository.deleteById(id);
    }
}

And finally the code for the BrandRepository:

package parc.repository;

import org.springframework.data.repository.CrudRepository;
import parc.model.concrete.Brand;

public interface BrandRepository extends CrudRepository<Brand, Long> {

}

I'm not a pro in Spring Boot so I'll appreciate any kind of help!

Answer 1

What do you have in application.yml? maybe setting the following code will work:

in application.yml:

server:
    contextPath: /api

and the BrandController:

package parc.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import parc.model.concrete.Brand;
import parc.repository.BrandRepository;

@RestController
@RequestMapping("/brands")
public class BrandController extends BaseController<Brand, BrandRepository> {

    private final BrandRepository repository;

    public BrandController(BrandRepository repository) {
        super(repository);
        this.repository = repository;
    }

}