我正在處理一個 Web API 專案，當我運行它并嘗試將路由用于控制器時，它不起作用，而是向我拋出 404 錯誤。為什么 Web API 會忽略路由屬性？
我將在下面留下代碼：
[ApiController]
[Route("api/[controller]")]
public class Controller3 : ControllerBase
{
private readonly IServiceContract3 _interest;
public Controller3(IServiceContract3 interest)
{
_interest = interest;
}
[HttpGet]
[Route("[action]")]
[Route("api/Interest/GetInterests")]
public IEnumerable<Interest> GetEmployees()
{
return _interest.GetInterests();
}
[HttpPost]
[Route("[action]")]
[Route("api/Interest/AddInterest")]
public IActionResult AddInterest(Interest interest)
{
_interest.AddInterest(interest);
return Ok();
}
[HttpPost]
[Route("[action]")]
[Route("api/Interest/UpdateInterest")]
public IActionResult UpdateInterest(Interest interest)
{
_interest.UpdateInterest(interest);
return Ok();
}
[HttpDelete]
[Route("[action]")]
[Route("api/Interest/DeleteInterest")]
public IActionResult DeleteInterest(int id)
{
var existingInterest = _interest.GetInterest(id);
if (existingInterest != null)
{
_interest.DeleteInterest(existingInterest.Id);
return Ok();
}
return NotFound($"Employee Not Found with ID : {existingInterest.Id}");
}
[HttpGet]
[Route("GetInterest")]
public Interest GetInterest(int id)
{
return _interest.GetInterest(id);
}
}
對于我的 Startup.cs
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers();
services.AddDbContextPool<DatabaseContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("DB")));
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IWebHostEnvironment env, DatabaseContext context)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
context.Database.Migrate();
app.UseHttpsRedirection();
app.UseRouting();
app.UseAuthorization();
app.UseEndpoints(endpoints =>
{
endpoints.MapControllers();
});
}
}
如何修復路由？每次我嘗試在瀏覽器中執行此操作時，例如 https://localhost:44316/api/Interest/GetInterests，我都會收到 404 錯誤。為什么會這樣？
uj5u.com熱心網友回復：
通常 webapi 的控制器定義如下：
[ApiController]
[Route("api/[controller]")]
public sealed class InterestController : ControllerBase
{
private readonly IServiceContract3 _interest;
public InterestController(IServiceContract3 interest)
{
_interest = interest;
}
[HttpGet, Route("GetInterests")]
public IActionResult GetEmployees()
{
// this is located at: GET api/Interest/GetInterests
return Ok(_interest.GetInterests());
}
[HttpPost, Route("AddInterest")]
public IActionResult AddInterest([FromBody] Interest interest)
{
// this is located at: POST api/Interest/AddInterest
}
[HttpPost, Route("UpdateInterest")]
public IActionResult UpdateInterest([FromBody] Interest interest)
{
// this is located at: POST api/Interest/UpdateInterest
}
[HttpDelete, Route("DeleteInterest/{id}")]
public IActionResult DeleteInterest([FromRoute] int id)
{
// this is located at: DELETE api/Interest/DeleteInterest/{id}
}
[HttpGet, Route("GetInterest/{id}")]
public IActionResult GetInterest([FromRoute] int id)
{
// this is located at: GET api/Interest/GetInterest/{id}
return Ok(_interest.GetInterest(id));
}
}
首先，您要為控制器命名一個相關名稱，該名稱將貫穿控制器的其余部分。所以，這這種情況下，我換Controller3到InterestController。由于控制器的路由是"/api/[Controller]"，它將轉換為"api/Interest"。
接下來，洗掉[Action]屬性。在這種情況下您不需要它們。
然后，確保您的路線正確。如果您要傳遞 ID，請在路由中使用{id}和設定[FromRoute]屬性來定義您的 ID，以便清楚起見。此外，用于[FromBody]定義將來自正文的引數。其中很多是“默認”（意味著您不需要添加它們），但它有助于清晰。
最后，如果您正在使用該IActionResult模式，請通過控制器堅持使用該模式。不要在端點之間混合/匹配回傳型別，因為這會導致維護混亂。
最后一件事：您的控制器端點名稱有點多余。例如，你可以這樣做：
[HttpGet, Route("")]
public IActionResult GetEmployees()
{
// this is located at: GET api/Interest
return Ok(_interest.GetInterests());
}
[HttpPut, Route("")]
public IActionResult AddInterest([FromBody] Interest interest)
{
// this is located at: PUT api/Interest/
}
[HttpPost, Route("")]
public IActionResult UpdateInterest([FromBody] Interest interest)
{
// this is located at: POST api/Interest/
}
[HttpDelete, Route("{id}")]
public IActionResult DeleteInterest([FromRoute] int id)
{
// this is located at: DELETE api/Interest/{id}
}
[HttpGet, Route("{id}")]
public IActionResult GetInterest([FromRoute] int id)
{
// this is located at: GET api/Interest/{id}
return Ok(_interest.GetInterest(id));
}
即：使用“HTTP 動詞”來隔離操作。
uj5u.com熱心網友回復：
您必須通過使 api 成為根來修復您的路線。將“api”替換為“~/api”。恕我直言，您應該從動作中洗掉 [action] 并將其添加到控制器中。還要修復控制器名稱
[ApiController]
[Route("~/api/[controller]/[action]")]
public class InterestController : ControllerBase
[HttpGet("~/api/Interest/GetInterests")]
public IEnumerable<Interest> GetEmployees()
....
[HttpPost("~/api/Interest/AddInterest")]
public IActionResult AddInterest(Interest interest)
...
[HttpPost("~/api/Interest/UpdateInterest")]
public IActionResult UpdateInterest(Interest interest)
...
[HttpDelete("~/api/Interest/DeleteInterest/{id}")]
public IActionResult DeleteInterest(int id)
....
[HttpGet("~/api/Interest/GetInterest/{id}")]
public Interest GetInterest(int id)
轉載請註明出處，本文鏈接：https://www.uj5u.com/yidong/367850.html