使用 .NET Core CLI，在面向完整框架时添加对本地 DLL 的引用 [英] Using .NET Core CLI, add a reference to a local DLL when targeting the full framework

问题描述

我想知道在使用 .NET Core 工具构建新的控制台应用程序并且仅针对 .NET 4.5.1 框架时，如何引用本地的、未签名的 CLR 4.0 程序集.

I would like to know how to reference a local, unsigned CLR 4.0 assembly, when building a new Console application using the .NET Core tools and only targeting the .NET 4.5.1 framework.

我在 Windows 10 机器上执行了以下操作:

I did the following on a Windows 10 machine:

1. 使用以下代码创建一个新的 MyLibrary.cs:

using System;
namespace MyNamespace
{
  public class MyLibrary
  {
    public static void SayHi()
    {
      Console.WriteLine("Hi");
    }
  }
}

1. 使用 csc/t:library MyLibrary.cs 编译以上代码.

创建一个新文件夹和一个 .NET Core 项目.

Create a new folder and a .NET Core project.

mkdir MyConsoleApp
cd MyConsoleApp
dotnet new

1. 编辑自动生成的 project.json 文件以面向 .NET 4.5.1.

{
  "version": "1.0.0-*",
  "buildOptions": {
    "debugType": "portable",
    "emitEntryPoint": true
  },
  "dependencies": {},
  "frameworks": {
    "net451" : { } 
  }
}

1. 测试项目是否构建并运行.确实如此.

dotnet restore
dotnet build
binDebug
et451MyConsoleApp.exe

1. 编辑 Program.cs 以调用 MyLibrary.dll 中的代码.

public static void Main(string[] args)
{
    Console.WriteLine("Hello World!");
    MyNamespace.MyLibrary.SayHi();
}

这就是我被困的地方.

我应该将 DLL 放在哪里以及在 project.json 中放什么，以便我可以在我的程序集中调用代码?

Where do I place my DLL and what do I put in the project.json so that I can call code in my assembly?

推荐答案

旧 DLL 必须包装在 nuget 包中.我以前从未创建过 nuget 包.在这种情况下，我是这样做的:

The legacy DLL must be wrapped in a nuget package. I have never created a nuget package before. Here is how I did it in this case:

1. 准备为旧 DLL 创建 nuget 包:

1. Prepare to create a nuget package for the legacy DLL:

cd..
mkdir lib
et40
move MyLibrary.dll lib
et40
nuget spec -AssemblyPath lib
et40MyLibrary.dll
// which generates a MyLibrary.dll.nuspec XML file.

2. 填写或删除 nuspec 文件中的字段:

2. Fill in or delete fields in the nuspec file:

<?xml version="1.0"?>
<package >
  <metadata>
    <id>MyLibrary.dll</id>
    <version>1.0.0</version>
    <authors>Wallace Kelly</authors>
    <description>My test library.</description>
  </metadata>
</package>

3. 打包 nuget 包并将其移动到 nuget 文件夹结构中:

3. Pack the nuget package and move it into the nuget folder structure:

nuget pack MyLibrary.nuspec -OutputDirectory lib
et40
// which generates a MyLibrary.dll.1.0.0.nupkg

4. 创建一个新的 nuget-source 文件夹:

4. Create a new nuget-source folder:

nuget init lib nuget-source

5. 在项目文件夹(例如 MyConsoleApp)中，使用以下内容创建一个新的 nuget.config 文件:

5. In the project folder (e.g, MyConsoleApp), create a new nuget.config file with the following:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
</configuration>

6. 将您的本地 nuget-source 文件夹添加到 nuget 的源列表中:

6. Add your local nuget-source folder to the list of nuget's sources:

nuget sources add -Name "Local Source" -Source "c:	empdotnet-core-test
uget-source" -configfile nuget.config

在 project.json 文件中，添加对旧 DLL 的依赖项.

In the project.json file, add a dependency to the legacy DLL.

"dependencies": {
  "MyLibrary.dll": "1.0.0"
}, 

7.此时，您应该能够恢复、构建和运行项目.

7. At this point, you should be able to restore, build, and run the project.

dotnet restore
dotnet build
dotnet run

HT:感谢@michael-kennedy 帮助我解决这个问题.

HT: Thanks to @michael-kennedy for helping me work this out.

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