Unity2.0与interception的配合使用(EntLib5.0)

引用的命名空间如下：

建立一个帮助类:

using Microsoft.Practices.Unity;
using Microsoft.Practices.Unity.Configuration;

/// <summary>
    /// 提供对UnityContainer的分装
    /// </summary>
    public sealed class OB
    {
        private static IUnityContainer _Container = null;
        /// <summary>
        /// 需要在Web.config 或 app.config中设置unity
        /// </summary>
        public static IUnityContainer Container
        {
            get
            {
                if (_Container == null)
                {
                    InitContainer();
                }
                return _Container;
            }
        }
        public static T R<T>()
        {
            return Container.Resolve<T>();
        }
        private static void InitContainer()
        {
            if (_Container == null)
            {
                lock (typeof(OB))
                {

                    _Container = new UnityContainer();
                    _Container.LoadConfiguration();
                }
            }
        }
    }

//============================

配置文件部分

<register type="Order">
      <lifetime type="singleton"/>
      <constructor>
        <param name="P1"/>
        <param name="name" value="aaaa"/>
      </constructor>
      <interceptionBehavior type="PolicyInjectionBehavior"/>
      <interceptor type="TransparentProxyInterceptor"/>
    </register>

</interception>
</container>
</unity>

//=============================拦截处理类=========

using Microsoft.Practices.Unity;
using Microsoft.Practices.Unity.InterceptionExtension;
using Microsoft.Practices.Unity.Utility;

    class AuthorizationCallHandler:ICallHandler, IDisposable
    {
        public AuthorizationCallHandler()
        {

}

        /// <summary>
        /// 函数调用拦截处理
        /// </summary>
        /// <param name="input"></param>
        /// <param name="getNext"></param>
        /// <returns></returns>
        public IMethodReturn Invoke(IMethodInvocation input, GetNextHandlerDelegate getNext)
        {

//调用前操作

            IMethodReturn methodReturn = getNext().Invoke(input, getNext);

            //调用后操作
            if (methodReturn.Exception == null)
            {

                    //"Successfully finished {0}"
            }
            else
            {

                    //"Finished {0} with exception {1}: {2}",

}

return methodReturn;
}

        private int order;
        public int Order
        {
            get
            {
                return order;
            }
            set
            {
                order = value;
            }
        }

        public void Dispose()
        {
            //释放资源操作
        }
    }

    /// <summary>
    /// 使用特属声明时，需要定义Attribute类
    /// </summary>
    class AuthorizationCallHandlerAttribute : HandlerAttribute
    {
        /// <summary>
        /// 可以给特性类构造函数传递参数
        /// </summary>
        public AuthorizationCallHandlerAttribute()
        {

        }
        public override ICallHandler CreateHandler(IUnityContainer container)
        {
            return new AuthorizationCallHandler();
        }
    }

//===========采用透明代理拦截器=============

public class BizObj:MarshalByRefObject{....}