Question

我正在使用.net Framework 4.5.2和asp.net Web API。

我创建了一个名为LoginVerification的新控制器，当我运行该应用程序时，我在api标签下看不到该控制器。另外，当我尝试通过转到http://localhost:51449/api/LoginVerification在Postman中进行获取或发布时，出现以下错误：

"Message": "No HTTP resource was found that matches the request URI 'http://localhost:51449/api/LoginVerification'.",
"MessageDetail": "No type was found that matches the controller named 'LoginVerification'."

我不确定为什么无法导航到LoginVerification Controller。

[Authorize]
[RoutePrefix("api/LoginVerification")]
public class LoginVerificationController : ApiController
{
    // GET api/<controller>
    public IEnumerable<string> Get()
    {
        return new string[] { "value1", "value2" };
    }

    // GET api/<controller>/5
    public string Get(int id)
    {
        return "value";
    }

    // POST api/<controller>
    public HttpResponseMessage Post([FromBody]string value)
    {
        string retVal = string.Empty;
        LoginModel loginModel = new LoginModel();
        retVal = loginModel.VerifyLoginValue(value);

        return new HttpResponseMessage()
        {
            Content = new StringContent(retVal, Encoding.UTF8, "application/json"),
            StatusCode = HttpStatusCode.OK
        };
    }

    // PUT api/<controller>/5
    public void Put(int id, [FromBody]string value)
    {
    }

    // DELETE api/<controller>/5
        public void Delete(int id)
        {
        }
}

Answer 1

您在Route操作上缺少ApiController属性。通过使用RoutePrefix，您可以告诉路由表该控制器正在使用属性路由，因此操作也需要属性

[Authorize]
[RoutePrefix("api/LoginVerification")]
public class LoginVerificationController : ApiController {
    // GET api/<controller>
    [HttpGet]
    [Route("")]
    public IEnumerable<string> Get() {
        return new string[] { "value1", "value2" };
    }

    // GET api/<controller>/5
    [HttpGet]
    [Route("{id:int}")]
    public string Get(int id) {
        return "value";
    }

    // POST api/<controller>
    [HttpPost]
    [Route("")]
    public HttpResponseMessage Post([FromBody]string value) {
        //...
    }

    // PUT api/<controller>/5
    [HttpPut]
    [Route("{id:int}"]
    public void Put(int id, [FromBody]string value)
    {
    }

    // DELETE api/<controller>/5
    [HttpDelete]
    [Route("{id:int}"]
    public void Delete(int id)
    {
    }
}

最后确保在WebApiConfig中启用属性路由

public static class WebApiConfig {
    public static void Register(HttpConfiguration config) {
        // Attribute routing.
        config.MapHttpAttributeRoutes();

        // Convention-based routing.
        config.Routes.MapHttpRoute(
            name: "DefaultApi",
            routeTemplate: "api/{controller}/{id}",
            defaults: new { id = RouteParameter.Optional }
        );
    }
}

引用Attribute Routing in ASP.NET Web API 2

无法访问webapi控制器

1 个答案: