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我正在使用 .NET 4.5 和 Web API 2(在 Visual Studio 2013 中)的最终版本。我一直在使用此文档作为参考,但无济于事。

我有一些基本路线,例如

api/providers
api/locations
api/specialties

还有一些方法喜欢

Get()
Get(int id)
Get(string keyword)
Autocomplete(string keyword)
Search(string zipcode, string name, int radius, [...])

理想情况下,我希望 URL 最终像

  • /api/locations/12345(获取位置 12345)
  • /api/locations/clinical(获取名称中带有“clinical”的位置)
  • /api/locations/autocomplete?keyword=clinical (为名称中带有“clinical”的位置获取精简的 Id + Name 对象)
  • /api/locations/search?zipcode=12345&radius=20&name=clinical (获取 zip 12345 20 英里范围内的位置,名称中包含“clinical”)

在下面的代码块中,Get方法和Search工作按预期工作,但Autocomplete不是。应该注意的是,我在多个控制器中有类似命名的方法。我究竟做错了什么?(另外,这个属性到底是干什么Name =用的?)

/// <summary>
/// This is the API used to interact with location information.
/// </summary>
[RoutePrefix("api/locations")]
public class LocationController : ApiController
{
    private ProviderEntities db = new ProviderEntities();

    private static readonly Expression<Func<Location, LocationAutocompleteDto>> AsLocationAutocompleteDto =
        x => new LocationAutocompleteDto
        {
            Id = x.Id,
            Name = x.Name
        };

    /// <summary>
    /// Get ALL locations.
    /// </summary>
    [Route("")]
    public IQueryable<Location> Get()
    {
        return db.Locations.AsQueryable();
    }

    /// <summary>
    /// Get a specific location.
    /// </summary>
    /// <param name="id">The ID of a particular location.</param>
    [Route("{id:int}")]
    public IQueryable<Location> Get(int id)
    {
        return db.Locations.Where(l => l.Id == id);
    }

    /// <summary>
    /// Get all locations that contain a keyword.
    /// </summary>
    /// <param name="keyword">The keyword to search for in a location name.</param>
    [Route("{keyword:alpha}")]
    public IQueryable<Location> Get(string keyword)
    {
        return db.Locations.Where(l => l.Name.Contains(keyword)).OrderBy(l => l.Name);
    }

    [Route("search", Name = "locationsearch")]
    public string Search(string zipcode = null, string latitude = null, string longitude = null)
    {
        if (zipcode != null) return "zipcode";
        if (latitude != null && longitude != null) return "lat/long";
        else
            return "invalid search";
    }

    /// <summary>
    /// Autocomplete service for locations, returns simple Id/Name pairs.
    /// </summary>
    /// <param name="keyword">The keyword to search on.</param>
    [Route("autocomplete/{keyword:alpha}", Name = "locationautocomplete")]
    public IQueryable<LocationAutocompleteDto> Autocomplete(string keyword)
    {
        // validate the inputs
        if (string.IsNullOrEmpty(keyword))
            return null;

        IQueryable<Location> results = from l in db.Locations
                                       where l.Name.Contains(keyword)
                                       select l;

        return results.Select(AsLocationAutocompleteDto);
    }

似乎还没有很多社区支持围绕这些东西的最新版本。

编辑(带答案)

简单替换

[Route("autocomplete/{keyword:alpha}", Name = "locationautocomplete")]

[Route("autocomplete"), Route("autocomplete/{keyword:alpha}", HttpGet()]

它工作得很好。

4

1 回答 1

5

您是否尝试对 Search 和 AutoComplete 操作执行 GET 请求?如果是,那么您需要使用System.Web.Http.HttpGet属性进行装饰。如果动作没有以 Get、Put、Post、Delete 等动词为前缀,则 Web API 默认假定为 POST。我猜你收到的是 405 Method Not Allowed..对吗?

The Name property is useful in case of link generation (Url.Link) where you would need to specify a name

于 2013-10-31T16:37:14.613 回答