c# - MVC 6 多种获取方法

Question

我试图支持每个控制器的多个 Get() 方法，以及通过 web api 访问的特殊命名的方法。我已经在 MVC 5 中做到了这一点，但似乎无法弄清楚它是如何在 MVC 6 中完成的。有什么想法吗？谢谢。

Answer 1

您不能有多个具有相同 url 模式的 Get 方法。您可以使用属性路由并为不同的 url 模式设置多个 GET 方法。

[Route("api/[controller]")]
public class IssuesController : Controller
{
    // GET: api/Issues
    [HttpGet]
    public IEnumerable<string> Get()
    {
        return new string[] { "item 1", "item 2" };
    }

    // GET api/Issues/5
    [HttpGet("{id}")]
    public string Get(int id)
    {
        return "request for "+ id;
    }

    // GET api/Issues/special/5
    [HttpGet("special/{id}")]
    public string GetSpecial(int id)
    {
        return "special request for "+id;
    }
    // GET another/5
    [HttpGet("~/another/{id}")]
    public string AnotherOne(int id)
    {
        return "request for AnotherOne method with id:" + id;
    }
    // GET api/special2/5
    [HttpGet()]
    [Route("~/api/special2/{id}")]
    public string GetSpecial2(int id)
    {
        return "request for GetSpecial2 method with id:" + id;
    }
}

您可以看到我同时使用HttpGet和Route属性来定义路由模式。

通过上述配置，您将得到以下响应

请求网址：yourSite/api/issues/

结果 ["value1","value2"]

请求网址：yourSite/api/issues/4

结果 request for 4

请求网址：yourSite/api/special2/6

结果 request for GetSpecial2 method with id:6

请求网址：yourSite/another/3

结果 request for AnotherOne method with id:3

Answer 2

您可以使用属性路由链接 -

[Route("api/[controller]")] /* this is the defualt prefix for all routes, see line 20 for overridding it */
public class ValuesController : Controller
{
    [HttpGet] // this api/Values
    public string Get()
    {
        return string.Format("Get: simple get");
    }

    [Route("GetByAdminId")] /* this route becomes api/[controller]/GetByAdminId */
    public string GetByAdminId([FromQuery] int adminId)
    {
        return $"GetByAdminId: You passed in {adminId}";
    }

    [Route("/someotherapi/[controller]/GetByMemberId")] /* note the / at the start, you need this to override the route at the controller level */
    public string GetByMemberId([FromQuery] int memberId)
    {
        return $"GetByMemberId: You passed in {memberId}";
    }

    [HttpGet]
    [Route("IsFirstNumberBigger")] /* this route becomes api/[controller]/IsFirstNumberBigger */
    public string IsFirstNumberBigger([FromQuery] int firstNum, int secondNum)
    {
        if (firstNum > secondNum)
        {
            return $"{firstNum} is bigger than {secondNum}";
        }
        return $"{firstNum} is NOT bigger than {secondNum}";
    }
}

有关更多详细信息，请参见此处 - http://nodogmablog.bryanhogan.net/2016/01/asp-net-5-web-api-controller-with-multiple-get-methods/