asp.net-web-api - 网址链接() : Route cannot be found when using attribute routing

Question

Url.Link(...) 抛出以下异常:

An exception of type 'System.ArgumentException' occurred in System.Web.dll but was not handled in user code

Additional information: A route named 'api/companies/{companyId:Guid}' could not be found in the route collection.

Controller 方法如下:

[Route("api/companies/")]
[HttpPost]
public IHttpActionResult Create()
{
    Company company = new Company("Test!");

    CompanyRepository.Add(company);

    return Created(new Uri(Url.Link("api/companies/{companyId:Guid}", new { companyId = company.Id })), company);
}

这里使用属性路由定义路由:

[Route("api/companies/{companyId:Guid}")]
[HttpGet]
public IHttpActionResult Get(Guid companyId)
{
    return Ok(CompanyRepository.Find(companyId));
}

为什么找不到路由？需要在RouteConfig中使用常规路由吗？

Answer 1

你需要这样命名你的路线:

[Route("api/companies/{companyId:Guid}", Name="MyRouteName")]

然后使用

Url.Link("MyRouteName", new { companyId = company.Id })