我尝试在WebAPI 2中使用 System.Web.OData.ODataController 。
WebConfig.cs
ODataModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<User>("User");
config.MapODataServiceRoute(
routeName: "ODataRoute",
routePrefix: null,
model: builder.GetEdmModel());
控制器:
public class UserApiODataController : ODataController
{
[Route("api/lookups/users")]
[EnableQuery(AllowedQueryOptions = AllowedQueryOptions.All)]
public IHttpActionResult GetUsers()
{
try
{
var context = new DbContenxt();
return Ok(context.Users.AsQueryable());
}
catch (Exception exception)
{
return InternalServerError(exception);
}
}
}
当我尝试查询数据时,我收到错误:
GET http://localhost:58786/api/lookups/users 406 (Not Acceptable)
当我用ApiController替换ODataController时,查询效果很好。
请求标题:
Accept:application/atomsvc+xml;q=0.8, application/json;odata=fullmetadata;q=0.7, application/json;q=0.5, */*;q=0.1
Accept-Encoding:gzip, deflate, sdch
Accept-Language:en-US,en;q=0.8
Cache-Control:no-cache
Connection:keep-alive
DataServiceVersion:2.0
Host:localhost:58786
MaxDataServiceVersion:2.0
Origin:http://localhost:62131
Pragma:no-cache
Referer:htpp://localhost:62131/
User-Agent:Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/46.0.2490.86 Safari/537.36
ODataController响应标题:
Remote Address:[::1]:58786
Request URL:http://localhost:58786/api/lookups/users
Request Method:GET
Status Code:406 Not Acceptable
Response Headers
view source
Access-Control-Allow-Credentials:true
Access-Control-Allow-Origin:http://localhost:62131
Cache-Control:no-cache
Content-Length:0
Date:Mon, 30 Nov 2015 16:09:25 GMT
Expires:-1
Pragma:no-cache
Server:Microsoft-IIS/10.0
X-AspNet-Version:4.0.30319
X-Powered-By:ASP.NET
X-SourceFiles:=?UTF-8?B?RDpccHJvamVjdHNcZG9rdW1lbnRhXFN3YWxsb3dcU3JjXFN3YWxsb3cuV2ViQXBpXGFwaVxsb29rdXBzXExpY2Vuc2VUeXBl?=
ApiController响应标题
Access-Control-Allow-Credentials:true
Access-Control-Allow-Origin:http://localhost:62131
Cache-Control:no-cache
Content-Length:247
Content-Type:application/json; charset=utf-8
Date:Mon, 30 Nov 2015 16:20:53 GMT
Expires:-1
Pragma:no-cache
Server:Microsoft-IIS/10.0
X-AspNet-Version:4.0.30319
X-Powered-By:ASP.NET
X-SourceFiles:=?UTF-8?B?RDpccHJvamVjdHNcZG9rdW1lbnRhXFN3YWxsb3dcU3JjXFN3YWxsb3cuV2ViQXBpXGFwaVxsb29rdXBzXExpY2Vuc2VUeXBl?=
在客户端,我使用JayData。
有什么问题?任何的想法?
答案 0 :(得分:0)
首先,从名称空间 System.Web.OData.ODataController ,我认为您正在使用Web API OData V4库。 V4不接受 application / atomsvc + xml ,因为只有“Json”是OData V4规范中的标准。
其次, odata = fullmetadata 是OData V3元数据标头,对于V4,它应该是 odata.metadata = full
第三,[Route("api/lookups/users")]
是Web API属性。如果您想使用ODataController,请使用OData版本。 [ODataRoute("...")]
第四,请确保[Route(...)]中的路径模板跟进OData Uri约定。查看更多详情here
第五,你可以从here获得更多教程。
希望它可以帮到你。感谢。