需要我的web api 2控制器的路由
我有一个简单的WebApi2控制器,它返回XML,但我无法使用我定义的路由正确添加另一个方法:
namespace CBMI.WebAPIservice.Controllers { public class MarkersController : ApiController { public HttpResponseMessage Get(int? id) { int i = id.HasValue ? id.Value : 0; XmlDocument docContent = GetXmlDataFromDB(i); return new HttpResponseMessage { Content = new StringContent(docContent.InnerXml.ToString(), Encoding.UTF8, "application/xml") }; } public HttpResponseMessage GetGrantsIS() { XmlDocument docContent = GetXmlDataFromDB(); return new HttpResponseMessage { Content = new StringContent(docContent.InnerXml.ToString(), Encoding.UTF8, "application/xml") }; } public XmlDocument GetXmlDataFromDB() { string connStr = System.Convert.ToString( System.Web.Compilation.ConnectionStringsExpressionBuilder.GetConnectionString("MDWConnectionString"), System.Globalization.CultureInfo.CurrentCulture); SqlConnection conn = new SqlConnection(connStr); SqlCommand sqlCmd = new SqlCommand("dbo.FLAS_List_GrantLocationsByAmount_V1", conn); sqlCmd.CommandType = System.Data.CommandType.StoredProcedure; conn.Open(); XmlDocument xmlDoc = new XmlDocument(); XmlReader xmlReader = sqlCmd.ExecuteXmlReader(); if (xmlReader.Read()) xmlDoc.Load(xmlReader); conn.Close(); return xmlDoc; } public XmlDocument GetXmlDataFromDB(int worldAreaID ) { string scrambleAward = ""; string connStr = System.Convert.ToString( System.Web.Compilation.ConnectionStringsExpressionBuilder.GetConnectionString("MDWConnectionString"), System.Globalization.CultureInfo.CurrentCulture); SqlConnection conn = new SqlConnection(connStr); SqlCommand sqlCmd = new SqlCommand("dbo.FLAS_List_Awards_V1", conn); sqlCmd.CommandType = System.Data.CommandType.StoredProcedure; sqlCmd.Parameters.AddWithValue("@AreaID", worldAreaID); sqlCmd.Parameters.AddWithValue("@Scramble", scrambleAward); conn.Open(); XmlDocument xmlDoc = new XmlDocument(); XmlReader xmlReader = sqlCmd.ExecuteXmlReader(); if (xmlReader.Read()) xmlDoc.Load(xmlReader); conn.Close(); return xmlDoc; } }
}
WebApiConfig.cs
namespace CBMI.WebAPIservice.App_Start { // This code file defines the delegate where you should put your Web API configuration code. public static class WebApiConfig { public static void Register(HttpConfiguration config) { // Web API routes config.MapHttpAttributeRoutes(); config.Routes.MapHttpRoute ( name: "WebApi2", routeTemplate: "api/{controller}/{id}" ); config.Routes.MapHttpRoute ( name: "ApiGrantsIS", routeTemplate: "api/{controller}/{action}" ); } }
}
我无法理解如何更改路由以识别操作 ,以便调用GetGrantsIS方法。 而是使用以下URL浏览
CBMI.WebAPIservice/api/markers/GetGrantsIS
路由到Get方法,该方法识别id没有值。 然后它默认值为0并且它可以工作,但是我需要让这个URL调用GetGrantsIS方法。
编辑:尝试添加属性路由给出新的错误
我装饰如下:
[Route("api/{controller}/GetGrantsIS")] public HttpResponseMessage GetGrantsIS()
现在我明白了:
Server Error in '/CBMI.WebAPIservice' Application. A direct route cannot use the parameter 'controller'. Specify a literal path in place of this parameter to create a route to a controller.
Web Api 2支持REST架构,这意味着它希望您的操作是GET,POST,PUT,DELETE。
但是,您可以使用属性路由获得所需的结果。
如果要使用属性路由,则已在WebApiConfig文件中进行了该设置。 因此,您只需修改代码即可使用Route属性,如下所示:
[Route("api/markers/getgrantsis")] public HttpResponseMessage GetGrantsIS() { XmlDocument docContent = GetXmlDataFromDB(); return new HttpResponseMessage { Content = new StringContent(docContent.InnerXml.ToString(), Encoding.UTF8, "application/xml") }; }