注册用户@PostMapping端点总是在Postman中返回401未经授权的错误

Question

Always @GetMapping Enpoints 与 BasicAuthentication Credentials 一起工作正常，但是用于注册新用户的 @PostMapping 端点总是给出“401”，即使我注释掉了所有 Spring Security 配置文件....

这是我的 Repo 和控制器

用户回购

package com.example.ecommerce_backend.Repository;

    import com.example.ecommerce_backend.Model.User;
    import org.springframework.data.jpa.repository.JpaRepository;
    import org.springframework.data.jpa.repository.Query;
    import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
    import org.springframework.stereotype.Repository;


    import java.util.List;
    import java.util.Optional;

    @Repository
    public interface UserRepo extends JpaRepository<User,Integer> {
        @Query(value = "SELECT * from user", nativeQuery = true)
        List<Object[]> findColumnsOnly();//Retrieving data as Object[] instances with this it is possible             to retrieve only specific columns

        Optional<User> findByEmail(String email);

        User save(User user);



    }

控制器

package com.example.ecommerce_backend.Controller;

    import com.example.ecommerce_backend.Model.User;
    import com.example.ecommerce_backend.Repository.UserRepo;
    import com.example.ecommerce_backend.Service.UserService;
    import org.springframework.http.ResponseEntity;
    import org.springframework.security.access.prepost.PreAuthorize;
    import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
    import org.springframework.web.bind.annotation.*;

    import java.util.List;

    @RestController
    @RequestMapping("/api/users")
    public class UserController {


        private UserService userService;
        private UserRepo userRepo;

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



        @GetMapping
        public String Hello(){
            return "Hello Brother";
        }

    //    @PreAuthorize("hasRole('Admin')")//Allowing that which user have Granted to access this method at      Method Level
        @GetMapping("/allUsers")
        public List<Object[]> getAllUsers(){
            return userService.getAllUsers();
        }


        @GetMapping("/customerMessage")
        public String show(){
            return "Hello Customer";
        }


        @PostMapping("/register")
        public ResponseEntity<?> registerUser(@RequestBody User user) {
            if(userRepo.findByEmail(user.getEmail()).isPresent()){
                return ResponseEntity.badRequest().body("This email already exists");
            }
            else {
                String encodedPassword = new BCryptPasswordEncoder().encode(user.getPassword());
                user.setPassword(encodedPassword);
//                user.setRole("ROLE_CUSTOMER");
                userRepo.save(user);
                return ResponseEntity.ok("User registered successfully");
            }
        }



    }

我需要知道为什么会这样，这是什么原因，有人可以帮我解决这个问题吗？？？