我写了一个这样的例子
简单的计算器类:
public class Calculator
{
public int Add(int a, int b)
{
return a + b;
}
}
实现了 DynamicProxy 提供的“IInterceptor”
[Serializable]
public abstract class Interceptor : IInterceptor
{
public void Intercept(IInvocation invocation)
{
ExecuteBefore(invocation);
invocation.Proceed();
ExecuteAfter(invocation);
}
protected abstract void ExecuteAfter(IInvocation invocation);
protected abstract void ExecuteBefore(IInvocation invocation);
}
创建了一个拦截器类并继承自“拦截器”类
public class CalculatorInterceptor : Interceptor
{
protected override void ExecuteBefore(Castle.DynamicProxy.IInvocation invocation)
{
Console.WriteLine("Start");
}
protected override void ExecuteAfter(Castle.DynamicProxy.IInvocation invocation)
{
Console.WriteLine("End");
}
}
但是当我使用它时它不起作用!
static void Main(string[] args)
{
ProxyGenerator generator = new ProxyGenerator();
Calculator c = generator.CreateClassProxy<Calculator>(new CalculatorInterceptor());
var r = c.Add(11, 22);
Console.WriteLine(r);
Console.ReadKey();
}
我除了看到这样的东西:
START
33
END
但只显示
33
我该如何纠正它?!