创建新AppMain 加载Assembly，执行Interface

最新推荐文章于 2022-10-19 19:42:38 发布

htzguoguo

最新推荐文章于 2022-10-19 19:42:38 发布

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分类专栏： AppDoman Reflection 文章标签： assembly interface dll class string null

本文链接：https://blog.youkuaiyun.com/htzguoguo/article/details/4438812

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接口定义--编译为Interface.dll 供炸弹和土匪引用。

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using System;
namespace Interface
{
public interface IBomb
{
void Explode();
}
}

using System; namespace Interface { public interface IBomb { void Explode(); } }

炸弹定义--编译为ClassLibrary1.dll，准备交给土匪

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using System;
namespace ClassLibrary1
{
public class Class1:Interface.IBomb
{
public void Explode()
{
Console.WriteLine("bo~~~" );
}
}
}

using System; namespace ClassLibrary1 { public class Class1:Interface.IBomb { public void Explode() { Console.WriteLine("bo~~~"); } } }

那么程序A，引爆炸弹而且能把炸弹扔掉的土匪--编译为AppDomainTest.exe

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using System;
using System.Reflection;
namespace AppDomainTest
{
/// <summary>
/// 动态装卸dll程序集示例
/// 这里用一个有趣的例子：
///
/// 我把一个dll看作是炸弹，执行如下操作
/// 1、炸弹扔到程序运行目录中
/// 2、引爆炸弹
/// 3、炸弹消失
///
///
/// </summary>
class Program
{
/// <summary>
/// 使用FileSystemWatcher监视炸弹，如果有则引爆
/// </summary>
/// <param name="args"></param>
static void Main( string [] args)
{
Console.WriteLine("Press Any Key To Exit ..." );
System.IO.FileSystemWatcher fsWatcher = new System.IO.FileSystemWatcher();
fsWatcher.Path =System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location);
fsWatcher.Filter = "*.dll" ;
fsWatcher.EnableRaisingEvents = true ;
fsWatcher.Created += new System.IO.FileSystemEventHandler(fsWatcher_Created);
Console.ReadKey();
}
/// <summary>
/// 如果有炸弹丢过来则引爆
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
static void fsWatcher_Created( object sender, System.IO.FileSystemEventArgs e)
{
InvokeExplode(e.FullPath);
}
/// <summary>
/// 不能炸着自己，创建一个AppDomain...
/// </summary>
/// <param name="fileName"></param>
public static void InvokeExplode( string fileName)
{
try
{
System.AppDomain app = System.AppDomain.CreateDomain(System.IO.Path.GetFileNameWithoutExtension(fileName));
System.Runtime.Remoting.ObjectHandle objLoader=
app.CreateComInstanceFrom(System.Reflection.Assembly.GetExecutingAssembly().Location, "AppDomainTest.RemoteLoader" );
RemoteLoader loader = objLoader.Unwrap() as RemoteLoader;
loader.InvokeExplode(fileName);
System.AppDomain.Unload(app);
System.IO.File.Delete(fileName);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
}
/// <summary>
/// 在这里爆炸，注意这里的Assembly不能被外面访问
/// </summary>
class RemoteLoader : MarshalByRefObject
{
public void InvokeExplode( string fileName)
{
Assembly assembly = Assembly.LoadFile(fileName);
foreach (System.Type type in assembly.GetTypes())
{
if (type.GetInterface( typeof (Interface.IBomb).FullName) != null )
{
object obj = assembly.CreateInstance(type.FullName, true );
((Interface.IBomb)obj).Explode();
}
}
}
}
}