C# 用抽象类型实现抽象类
我有一个基本的抽象类,它接受来自抽象类的类型,我正在努力找出如何正确实现它 基类:C# 用抽象类型实现抽象类,c#,generics,inheritance,abstract-class,C#,Generics,Inheritance,Abstract Class,我有一个基本的抽象类,它接受来自抽象类的类型,我正在努力找出如何正确实现它 基类: public abstract class ApiService<TRequest, TResponse> where TRequest : ApiRequest where TResponse : ApiResponse { public abstract TResponse Execute(TRequest Request); } ApiResponse类: public
public abstract class ApiService<TRequest, TResponse>
where TRequest : ApiRequest
where TResponse : ApiResponse
{
public abstract TResponse Execute(TRequest Request);
}
ApiResponse类:
public abstract class ApiResponse
{
public bool Succeeded { get; set; }
}
我创建了一个TestService类来尝试解决这一问题,但这些概念对我来说并不一致:
public class TestService : ApiService<ApiRequest, ApiResponse>
{
public override ApiResponse Execute(ApiRequest Request)
{
ApiResponse response;
return (response);
}
公共类TestService:ApiService
{
公共覆盖ApiResponse执行(APIRESQUEST)
{
API反应;
返回(响应);
}
非常感谢您提供的任何帮助,帮助我进一步理解抽象类!谢谢
所以我的问题是:我不知道如何在Execute方法中实现ApiResponse,因为你不能实例化抽象类。泛型和多态性很好,但它必须在某个点停止。在你的例子中,你有一个很好的API接口,在这里你可以清楚地传递一个
TRequest
并接收一个TRes用ponse
您应该添加的是如何处理特定案例。添加一层IRequestHander
,它将知道如何从特定的请求创建特定的结果
然后使用工厂
设计模式,API函数将调用工厂以获取适合其请求的特定处理程序。它将执行请求处理程序
,并返回从中获得的响应
public class SpecificRequestA : ApiRequest {}
public class SpecificResponseA : ApiResponse{}
public interface IRequestHander<TRequest,TResponse>
where TRequest : ApiRequest
where TResponse : ApiResponse
{
TResponse Exeute(TRequest request);
}
public class SpecificRequestHandlerA : IRequestHander<SpecificRequestA,SpecificResponseA>
{
SpecificResponseA Execute(SpecificRequestA request)
{
//create the new response out of the given request. Here you know exactly on what you are working :)
}
}
public类SpecificRequestA:ApiRequest{}
公共类SpecificResponseA:ApiResponse{}
公共接口IRequestHander
哪里有TRequest:ApiRequest
哪里有响应:ApiResponse
{
TResponse Exeute(TRequest请求);
}
公共类SpecificRequestHandlerA:IRequestHander
{
SpecificResponseA执行(SpecificRequestA请求)
{
//根据给定的请求创建新的响应。在这里,您可以确切地了解您正在工作的内容:)
}
}
然后添加工厂
还可以考虑将请求实现为请求
——看看它是否更适合您的情况
我建议研究依赖注入和DI容器(如Castle、Ninject、Unity、Simple Injector)来
负责初始化。泛型和多态性很好,但它必须在某个点停止。在您的情况下,您有一个很好的API接口,可以清楚地看到您传递了一个TRequest
,并收到了一个treresponse
您应该添加的是如何处理特定案例。添加一层IRequestHander
,它将知道如何从特定的请求创建特定的结果
然后使用工厂
设计模式,API函数将调用工厂以获取适合其请求的特定处理程序。它将执行请求处理程序
,并返回从中获得的响应
public class SpecificRequestA : ApiRequest {}
public class SpecificResponseA : ApiResponse{}
public interface IRequestHander<TRequest,TResponse>
where TRequest : ApiRequest
where TResponse : ApiResponse
{
TResponse Exeute(TRequest request);
}
public class SpecificRequestHandlerA : IRequestHander<SpecificRequestA,SpecificResponseA>
{
SpecificResponseA Execute(SpecificRequestA request)
{
//create the new response out of the given request. Here you know exactly on what you are working :)
}
}
public类SpecificRequestA:ApiRequest{}
公共类SpecificResponseA:ApiResponse{}
公共接口IRequestHander
哪里有TRequest:ApiRequest
哪里有响应:ApiResponse
{
TResponse Exeute(TRequest请求);
}
公共类SpecificRequestHandlerA:IRequestHander
{
SpecificResponseA执行(SpecificRequestA请求)
{
//根据给定的请求创建新的响应。在这里,您可以确切地了解您正在工作的内容:)
}
}
然后添加工厂
还可以考虑将请求实现为请求
——看看它是否更适合您的情况
我建议研究依赖注入和DI容器(如Castle、Ninject、Unity、Simple Injector)来
负责初始化。我在c#MVC UI层中使用以下ApiClient类:
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;
using System.Web;
using System.Web.Helpers;
using System.Web.Mvc;
namespace DocumentManager.UI
{
public class ApiClient<T>
{
public ApiClientErrorTypes Error{get;private set;}
private string baseUri = @"http://localhost/DocumentManager.WebAPI/";
public T ApiGet(string requestUrl)
{
using (var client = new HttpClient())
{
var requestUri = new Uri(baseUri + requestUrl);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
if (ApiAuthToken.token != null)
{
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", ApiAuthToken.token.ToString());
}
var response = client.GetAsync(requestUri).Result;
string contentString = response.Content.ReadAsStringAsync().Result;
if (response.IsSuccessStatusCode)
{
T result = JsonConvert.DeserializeObject<T>(contentString);
return result;
}
if (int.Parse(response.StatusCode.ToString()) > 400 && int.Parse(response.StatusCode.ToString()) <= 499)
Error = ApiClientErrorTypes.UnAuthorised;
else
Error = ApiClientErrorTypes.Technical;
return default(T);
}
}
public T ApiPost(string requestUrl, HttpContent encodedContent)
{
using(var client = new HttpClient())
{
var requestUri = new Uri(baseUri + requestUrl);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
if (ApiAuthToken.token != null)
{
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", ApiAuthToken.token.ToString());
}
var response = client.PostAsync(requestUri, encodedContent).Result;
string contentString = response.Content.ReadAsStringAsync().Result;
if (response.IsSuccessStatusCode)
{
T result = JsonConvert.DeserializeObject<T>(contentString);
return result;
}
if (int.Parse(response.StatusCode.ToString()) > 400 && int.Parse(response.StatusCode.ToString()) <= 499)
Error = ApiClientErrorTypes.UnAuthorised;
else
Error = ApiClientErrorTypes.Technical;
return default(T);
}
}
public bool ApiPostBool(string requestUrl, HttpContent encodedContent)
{
using (var client = new HttpClient())
{
var requestUri = new Uri(baseUri + requestUrl);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
if (ApiAuthToken.token != null)
{
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", ApiAuthToken.token.ToString());
}
var response = client.PostAsync(requestUri, encodedContent).Result;
string contentString = response.Content.ReadAsStringAsync().Result;
if (response.IsSuccessStatusCode)
{
return true;
}
return false;
}
}
}
}
这背后有一个entityframework数据层(DAC…)
我使用这种体系结构的原因是我希望多个MVC UI前端应用程序与API后端相结合
解决方案中的项目是
数据(类库)
API(网络API)
用户界面(Web MVC)
如果这有帮助,请标记为答案!我在c#MVC UI层中使用以下ApiClient类:
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;
using System.Web;
using System.Web.Helpers;
using System.Web.Mvc;
namespace DocumentManager.UI
{
public class ApiClient<T>
{
public ApiClientErrorTypes Error{get;private set;}
private string baseUri = @"http://localhost/DocumentManager.WebAPI/";
public T ApiGet(string requestUrl)
{
using (var client = new HttpClient())
{
var requestUri = new Uri(baseUri + requestUrl);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
if (ApiAuthToken.token != null)
{
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", ApiAuthToken.token.ToString());
}
var response = client.GetAsync(requestUri).Result;
string contentString = response.Content.ReadAsStringAsync().Result;
if (response.IsSuccessStatusCode)
{
T result = JsonConvert.DeserializeObject<T>(contentString);
return result;
}
if (int.Parse(response.StatusCode.ToString()) > 400 && int.Parse(response.StatusCode.ToString()) <= 499)
Error = ApiClientErrorTypes.UnAuthorised;
else
Error = ApiClientErrorTypes.Technical;
return default(T);
}
}
public T ApiPost(string requestUrl, HttpContent encodedContent)
{
using(var client = new HttpClient())
{
var requestUri = new Uri(baseUri + requestUrl);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
if (ApiAuthToken.token != null)
{
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", ApiAuthToken.token.ToString());
}
var response = client.PostAsync(requestUri, encodedContent).Result;
string contentString = response.Content.ReadAsStringAsync().Result;
if (response.IsSuccessStatusCode)
{
T result = JsonConvert.DeserializeObject<T>(contentString);
return result;
}
if (int.Parse(response.StatusCode.ToString()) > 400 && int.Parse(response.StatusCode.ToString()) <= 499)
Error = ApiClientErrorTypes.UnAuthorised;
else
Error = ApiClientErrorTypes.Technical;
return default(T);
}
}
public bool ApiPostBool(string requestUrl, HttpContent encodedContent)
{
using (var client = new HttpClient())
{
var requestUri = new Uri(baseUri + requestUrl);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
if (ApiAuthToken.token != null)
{
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", ApiAuthToken.token.ToString());
}
var response = client.PostAsync(requestUri, encodedContent).Result;
string contentString = response.Content.ReadAsStringAsync().Result;
if (response.IsSuccessStatusCode)
{
return true;
}
return false;
}
}
}
}
这背后有一个entityframework数据层(DAC…)
我使用这种体系结构的原因是我希望多个MVC UI前端应用程序与API后端相结合
解决方案中的项目是
数据(类库)
API(网络API)
用户界面(Web MVC)
如果这有帮助,请标记为answer!那么您提供的代码有什么问题?我不知道如何在Execute方法中实现ApiResponse,因为您无法实例化抽象类。我假设TestService
将用于处理APIRESQUEST
和ApiResponse的具体派生类代码>?例如TestService:ApiService
?那么您提供的代码有什么问题?我不知道如何在Execute方法中实现ApiResponse,因为您无法实例化抽象类。我假设TestService
将用于处理apirest
和ApiRes的具体派生类ponse
?例如TestService:ApiService
?
namespace DocumentManager.WebApi.Controllers
{
[RoutePrefix("api/document")]
public class DocumentController : BaseController
{
[Route("get/{id}")]
public IHttpActionResult Get(int id)
{
return Ok(DACDocument.Read(new DataContext(),id));
}
}
}