首頁猿問 netcore2自動(dòng)添加依賴的方法

netcore2自動(dòng)添加依賴的方法

C#

慕的地6264312 2022-12-24 10:01:54

我有多對(duì)接口并像那樣實(shí)現(xiàn)ICategoryService -> CategoryServiceICategoryTypeService -> CategoryTypeServiceIOrderService -> OrderServiceILoggingService -> LoggingService所有的類和接口都在Data.dll里面，我像這樣循環(huán)它。foreach (var type in serviceAssembly.GetTypes()){ if (type.Name.Contains("Repository") && !type.IsInterface && !type.IsGenericType) { Type interfaceImplement = type.GetInterfaces().SingleOrDefault(t => t.IsGenericType == false); if (interfaceImplement != null) { System.Diagnostics.Debug.WriteLine($"{type.Name} is inherited by {interfaceImplement.Name}"); services.AddTransient(interfaceImplement, type); } }}我得到這個(gè)錯(cuò)誤InvalidOperationException：嘗試激活“VietWebSite.Web.Areas.WebApi.Administrator.ValuesController”時(shí)無法解析類型“VietWebSite.Service.ILoggingService”的服務(wù)。但如果我將代碼更改為這樣，它就會(huì)起作用：services.AddTransient<ILoggingService, LoggingService>();services.AddTransient<ICategoryService, CategoryService>();services.AddTransient<ICategoryTypeService, CategoryTypeService>();services.AddTransient<IOrderService, OrderService>();請(qǐng)幫忙。

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1 回答

MM們

TA貢獻(xiàn)1886條經(jīng)驗(yàn) 獲得超2個(gè)贊

這是一個(gè)工作演示：

Data使用類和接口創(chuàng)建庫：

public interface ICategoryService

{

string Output();

}

public class CategoryService : ICategoryService

{

public string Output()

{

return "CategoryService.Output";

}

public interface ILoggingService

{

string Output();

}

public class LoggingService : ILoggingService

{

public string Output()

{

return "LoggingService.Output";

}

將Data庫引用添加到 asp.net core 項(xiàng)目

配置Startup.cs喜歡

var serviceAssembly = Assembly.GetAssembly(typeof(CategoryService));

foreach (var type in serviceAssembly.GetTypes())

{

if (type.Name.Contains("Service") && !type.IsInterface && !type.IsGenericType)

{

Type interfaceImplement = type.GetInterfaces().SingleOrDefault(t => t.IsGenericType == false);

if (interfaceImplement != null)

{

System.Diagnostics.Debug.WriteLine($"{type.Name} is inherited by {interfaceImplement.Name}");

services.AddTransient(interfaceImplement, type);

}

用例：

public class HomeController : Controller

{

private readonly ILoggingService _loggingService;

public HomeController(ILoggingService loggingService)

{

_loggingService = loggingService;

}

public IActionResult Index()

{

var result = _loggingService.Output();

return View();

}

更新：

您的問題是由AppDomain.CurrentDomain.GetAssemblies()只會(huì)返回加載的程序集引起的，請(qǐng)嘗試以下代碼：

//Load Assemblies

//Get All assemblies.

var refAssembyNames = Assembly.GetExecutingAssembly()

.GetReferencedAssemblies();

//Load referenced assemblies

foreach (var asslembyNames in refAssembyNames)

{

Assembly.Load(asslembyNames);

}

Assembly[] assemblies = AppDomain.CurrentDomain.GetAssemblies();

var myAssemblies = assemblies.Where(assem => assem.GetName().Name.Contains("VietWebSite.Data") || assem.GetName().Name.Equals("VietWebSite.Service"));

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