StructureMap - 能够在运行时替换程序集 [英] StructureMap - Ability to replace an assembly at runtime

问题描述

示例:

控制台应用程序:

class Program
{
    static void Main(string[] args)
    {
        var calculator = ObjectFactory.GetInstance<ICalculator>();
        for (var i = 0; i < 10; i++)
        {
            Console.WriteLine(calculator.Calculate(10, 5));
            Console.ReadLine();
        }
        Console.ReadLine();
    }
}

装配接口":

public interface ICalculator
{
    int Calculate(int a, int b);
}

程序集实施":

internal class Calculator : ICalculator
{
    public int Calculate(int a, int b)
    {
        return a + b;
    }
}

程序集实现"，此程序集将在运行时替换上面的程序集:

Assembly "Implemenation", this assembly shall replace the assembly above at runtime:

internal class Calculator : ICalculator
{
    public int Calculate(int a, int b)
    {
        return a * b;
    }
}

组装解析器"

For<ICalculator>().Use<Calculator>();

我想在运行时替换具体的实现.这可以通过 UpdateService 来完成，它只是替换旧的程序集Implementation".

I want to replace the concrete implementation at runtime. This could be done by an UpdateService which just replace the old assembly "Implementation".

我遇到的问题是程序集实现"被锁定.我无法取代它.

The problem I have is that the assembly "Implementation" is locked. I can't replace it.

我需要做什么才能实现这一目标?

What do I have to do to achieve this?

IoC 容器是负责满足我的要求还是我必须构建自己的基础架构?

Is the IoC container responsible for my requirement or do I have to build my own infrastructure?

在 Web 环境中，您可以轻松更换组件.我已经成功地做到了这一点.

In a web environment you can easily replace an assembly. I did this already with success.

推荐答案

恐怕你只能加载一个额外的程序集.

I'm afraid you can only load an additional assembly.

来自 MSDN:

如果不卸载所有组件，就无法卸载单个程序集包含它的应用程序域.即使集会进行超出范围，实际的程序集文件将保持加载状态，直到所有包含它的应用程序域被卸载.

There is no way to unload an individual assembly without unloading all of the application domains that contain it. Even if the assembly goes out of scope, the actual assembly file will remain loaded until all application domains that contain it are unloaded.

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