知识大全详解.NET中的动态编译技术[4]

Posted 2022-07-17 知

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　　接下来在原来基础上需要修改的是

　　· 将编译成的DLL保存到磁盘中

　　· 创建另外的AppDomain

　　· 获得IRemoteInterface接口的引用（将生成的DLL加载到额外的AppDomain）

　　· 调用InvokeMethod方法来远程调用

　　· 可以通过AppDomain Unload()方法卸载程序集

　　以下是完整的代码演示了如何应用这一方案

//get the code to pile

string strSourceCode = this txtSource Text;

// Create an addtional AppDomain

AppDomainSetup objSetup = new AppDomainSetup();

objSetup ApplicationBase = AppDomain CurrentDomain BaseDirectory;

AppDomain objAppDomain = AppDomain CreateDomain( MyAppDomain null objSetup);

// Create a new CSharpCodePrivoder instance

CSharpCodeProvider objCSharpCodePrivoder = new CSharpCodeProvider();

// Sets the runtime piling parameters by crating a new CompilerParameters instance

CompilerParameters objCompilerParameters = new CompilerParameters();

objCompilerParameters ReferencedAssemblies Add( System dll );

objCompilerParameters ReferencedAssemblies Add( System Windows Forms dll );

// Load the remote loader interface

objCompilerParameters ReferencedAssemblies Add( RemoteAccess dll );

// Load the resulting assembly into memory

objCompilerParameters GenerateInMemory = false;

objCompilerParameters OutputAssembly = DynamicalCode dll ;

// CompilerResults: Complile the code snippet by calling a method from the provider

CompilerResults cr = objCSharpCodePrivoder CompileAssemblyFromSource(objCompilerParameters strSourceCode);

if (cr Errors HasErrors)

string strErrorMsg = cr Errors Count ToString() + Errors: ;

for (int x = ; x < cr Errors Count; x++)

strErrorMsg = strErrorMsg + \\r\\nLine: +

cr Errors[x] Line ToString() + +

cr Errors[x] ErrorText;

this txtResult Text = strErrorMsg;

MessageBox Show( There were build erros please modify your code Compiling Error );

return;

// Invoke the method by using Reflection

RemoteLoaderFactory factory = (RemoteLoaderFactory)objAppDomain CreateInstance( RemoteAccess RemoteAccess RemoteLoaderFactory ) Unwrap();

// with help of factory create a real LiveClass instance

object objObject = factory Create( DynamicalCode dll Dynamicly HelloWorld null);

if (objObject == null)

this txtResult Text = Error: + Couldn t load class ;

return;

// *** Cast object to remote interface avoid loading type info

IRemoteInterface objRemote = (IRemoteInterface)objObject;

object[] objCodeParms = new object[ ];

objCodeParms[ ] = Allan ;

string strResult = (string)objRemote Invoke( GetTime objCodeParms);

this txtResult Text = strResult;

//Dispose the objects and unload the generated DLLs

objRemote = null;

AppDomain Unload(objAppDomain);

System IO File Delete( DynamicalCode dll );

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知识大全 详解.NET中的动态编译技术[4]

知识大全详解.NET中的动态编译技术[4]