Castle.DynamicProxy 拦截器

/// <summary>
/// 创建服务根据BLL接口
/// </summary>
public static T CreateService<T>() where T : class
{
    var service = serviceFactory.CreateService<T>();

    //拦截，可以写日志....
    var generator = new ProxyGenerator();
    var dynamicProxy = generator.CreateInterfaceProxyWithTargetInterface<T>(
        service, new InvokeInterceptor());

    return dynamicProxy;
}

internal class InvokeInterceptor : IInterceptor
{
    public InvokeInterceptor(){}
    /// <summary>
    /// 拦截方法
    /// </summary>
    /// <param name="invocation"></param>
    public void Intercept(IInvocation invocation)
    {
        try
        {
            invocation.Proceed();
        }
        catch (Exception exception)
        {
            if (exception is BusinessException)
                throw;

            var message = new
            {
                exception = exception.Message,
                exceptionContext = new
                {
                    method = invocation.Method.ToString(),
                    arguments = invocation.Arguments,
                    returnValue = invocation.ReturnValue
                }
            };

            Log4NetHelper.Error(LoggerType.ServiceExceptionLog, message, exception);
            throw;
        }
    }
}