API URI 未映射到控制器

Question

我创建了新控制器 UsersController.cs 并尝试从 FetchData.razor.cs 访问它，但是没有连接。我通过在以下位置设置断点来解决这个问题：

System.Collections.Generic.IEnumerable<ApplicationUser> applicationUsers = await _userManager.Users
            .Include(u => u.UserRoles)
                .ThenInclude(ur => ur.Role).ToListAsync();

它没有被调用。为什么会这样以及如何解决这个问题？这个有问题，但我不明白到底是什么api/fetchdata?

  this.applicationUserList = await this.httpClient.GetFromJsonAsync<IEnumerable<ApplicationUserDTO>>("api/fetchdata");

UsersController.cs:

  [Route("api/[controller]")]
  [ApiController]
  public class UsersController : ControllerBase
  {

    private readonly ApplicationDbContext _context;
    private readonly UserManager<ApplicationUser> _userManager;
    private readonly IMapper _mapper;
    private List<ApplicationUserDTO> applicationUsersDTO = new List<ApplicationUserDTO>();

    public UsersController(ApplicationDbContext context, UserManager<ApplicationUser> userManager, IMapper mapper)
    {
      this._context = context;
      this._userManager = userManager;
      this._mapper = mapper;
    }

    [HttpGet]
    public async Task<IActionResult> Get()
    {
      System.Collections.Generic.IEnumerable<ApplicationUser> applicationUsers = await _userManager.Users
            .Include(u => u.UserRoles)
                .ThenInclude(ur => ur.Role).ToListAsync();

      this.applicationUsersDTO = applicationUsers
                  .Select(person => new ApplicationUserDTO
                  {
                    Id = person.Id,
                    FirstName = person.FirstName,
                    Email = person.Email
                  }).ToList();

      //ApplicationUserDTO applicationUsersDTO = _mapper.Map<ApplicationUserDTO>(applicationUsers);
      return Ok(applicationUsersDTO);
    }
  }

FetchData.razor.cs:

 public partial class FetchData
  {
    [Inject]
    public HttpClient httpClient { get; set; }
    public IEnumerable<ApplicationUserDTO> applicationUserList { get; set; }
    protected bool isLoaded = false;

    public FetchData()
    {

    }

    protected async override Task OnInitializedAsync()
    {
      this.applicationUserList = await this.httpClient.GetFromJsonAsync<IEnumerable<ApplicationUserDTO>>("api/fetchdata");
      this.isLoaded = true;
    }
  }

Answer 1

this.applicationUserList = await this.httpClient.GetFromJsonAsync<IEnumerable<ApplicationUserDTO>>("api/fetchdata");

您有一个名为 fetchdata 的控制器吗？ ==>“api/fetchdata”

我猜你的意思是“api/users”，对吧？

API URI 未映射到控制器

API Uri is not mapped to Controller

c#

json

asp.net-core

blazor

blazor-server-side