关于“没有路线与提供的值匹配”错误有很多问题,但是我还没有在答案中找到任何解决方案:(
这是我的控制者:
[ApiVersion("0.0")]
[Route("api/v{version:apiVersion}/[controller]")]
[ApiController]
public class WidgetsController : ControllerBase
{
private readonly IRepository _repository;
public WidgetsController(IRepository repository)
{
_repository = repository;
}
[HttpPost]
[ProducesResponseType(StatusCodes.Status201Created)]
[ProducesResponseType(StatusCodes.Status400BadRequest)]
public IActionResult Add([FromBody] AddWidgetRequest request)
{
WidgetDetails details;
try
{
details = request.ToWidgetDetails();
}
catch (AddWidgetRequest.BadRequest e)
{
return BadRequest(e.Message);
}
var id = _repository.AddWidget(details);
return CreatedAtAction(nameof(GetById), new {id = id}, details.WithId(id));
}
[HttpGet("{id}")]
[ProducesResponseType(StatusCodes.Status200OK)]
[ProducesResponseType(StatusCodes.Status404NotFound)]
public IActionResult GetById(int id)
{
if (_repository.TryGetWidget(id, out var details))
{
return Ok(details.WithId(id));
}
else
{
return NotFound();
}
}
}
在POST到/ api / v0 / Widgets时,新条目将添加到数据库中,但是返回HTTP 500,并显示消息“ System.InvalidOperationException:没有路由与提供的值匹配。”。我的代码与https://docs.microsoft.com/en-us/aspnet/core/web-api/action-return-types?view=aspnetcore-3.1中的示例几乎完全相同,但我对可能出现的问题不知所措。
答案 0 :(得分:0)
您需要在CreatedAtAction
方法中指定api版本,如下所示:
public IActionResult Add([FromBody] AddWidgetRequest request,ApiVersion version)
{
return CreatedAtAction(nameof(GetById), new { id = 1, version = version.ToString() }, details.WithId(id));
}