[英]Multiple HttpPost action with the same parameter in Web API Controller
我正在使用ASP.NET Web Api和angularJs开发Web应用程序。 我有一个这样的Web API控制器:
[ActionName("AddNewState")]
public object PostAddNewState(RegionInformation newStateParam)
{
RegionOperations regionOperation = new RegionOperations(newStateParam.StateName);
RegionInformation newStateInformation = regionOperation.NewStateInformation;
var text = new
{
newStateInformation
};
return JsonConvert.SerializeObject(text);
}
[ActionName("AddNewCity")]
public object PostAddNewCity(RegionInformation newCityParam)
{
var text = new
{
message="Hello"
};
return JsonConvert.SerializeObject(text);
}
在客户端,我具有以下用于发送POST请求的功能:
$scope.AddNewState = function () {
$http({
method: "POST",
url: "api/RegionManagement/AddNewState",
data: {
StateName: $scope.state
}
}).then(function (response) {
var obj = JSON.parse(response.data);
$scope.States.push({ text: obj.newStateInformation.StateName, value: obj.newStateInformation.ID });
});
};
$scope.AddNewCity = function () {
$http({
method: "POST",
url: "api/RegionManagement/AddNewCity",
data: {
ParentID: $scope.RegionInptes.ParentID,
CityName: $scope.city
}
}).then(function (response) {
var obj = JSON.parse(response.data);
alert(obj.message);
});
};
当我执行$ scope.AddNewCity或$ scope.AddNewState时,我遇到500内部服务器错误。如果我在Web api控制器中评论AddNewCity操作,则可以成功执行$ scope.AddNewState 。
我搜索了在Web api控制器中使用多个HTTPPost的方法,然后尝试了以下解决方案: Web API控制器中的多个HttpPost方法 ,但是什么也没有发生,但是我仍然遇到该错误。
更新
这是我的配置文件:
public static void Register(HttpConfiguration config)
{
// Web API configuration and services
// Web API routes
config.MapHttpAttributeRoutes();
config.Routes.MapHttpRoute(
name: "ControllerOnly",
routeTemplate: "api/{controller}"
);
config.Routes.MapHttpRoute(
name: "ControllerandId",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
config.Routes.MapHttpRoute(
name: "ControllerAndAction",
routeTemplate: "api/{controller}/{action}"
);
}
可能是因为请求网址中的参数数量过多
[ActionName("AddNewState")]
public object PostAddNewState(RegionInformation newStateParam)
{
RegionOperations regionOperation = new RegionOperations(newStateParam.StateName);
RegionInformation newStateInformation = regionOperation.NewStateInformation;
var text = new
{
newStateInformation
};
return JsonConvert.SerializeObject(text);
}
[ActionName("AddNewCity")]
public object PostAddNewCity(RegionInformation newCityParam)
{
RegionOperations regionOperation = new RegionOperations(newCityParam.ParentID, newCityParam.CityName);
RegionInformation newStateInformation = regionOperation.NewStateInformation;
var text = new
{
newStateInformation
};
return JsonConvert.SerializeObject(text);
}
您注册路线的顺序很重要。 首先注册更具体的路由,然后再注册更通用的路由。
public static void Register(HttpConfiguration config) {
// Web API configuration and services
// Web API routes
config.MapHttpAttributeRoutes();
config.Routes.MapHttpRoute(
name: "ControllerAndAction",
routeTemplate: "api/{controller}/{action}/{id}"
defaults: new { id = RouteParameter.Optional }
);
config.Routes.MapHttpRoute(
name: "ControllerandId",
routeTemplate: "api/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
}
您还应该更新控制器,使其可以处理的内容更加具体。
public class RegionManagementController : ApiController {
[HttpPost]
[ActionName("AddNewState")]
public object PostAddNewState(RegionInformation newStateParam) { ... }
[HttpPost]
[ActionName("AddNewCity")]
public object PostAddNewCity(RegionInformation newCityParam) { ... }
}
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