// 业务接口
public interface IStudentManage{bool Login(string userId, string userName);}public class StudentManage:IStudentManage{public StudentManage() { }public bool Login(string userId, string userName){return userId == "123" && userName == "123";}}/// <summary>/// 登陆日志/// </summary>public class UserLogCallHandler : ICallHandler{/// <summary>///  构造函数，此构造函数是用于Attribute调用   /// </summary>/// <param name="message"> 消息 </param>/// <param name="parameterName"> 参数名 </param>public UserLogCallHandler(string message, string parameterName){this.Message = message;this.ParameterName = parameterName;}public IMethodReturn Invoke(IMethodInvocation input, GetNextHandlerDelegate getNext){//检查参数是否存在if (input == null) throw new ArgumentNullException("input");if (getNext == null) throw new ArgumentNullException("getNext");//开始拦截，此处可以根据需求编写具体业务逻辑代码//调用具体方法var result = getNext()(input, getNext);// 记录登陆日志}public string Message { get; set; }public string ParameterName { get; set; }private int order = 0;public int Order{get{return order;}set{order = value;}}}

<configuration><configSections><section name="unity" type="Microsoft.Practices.Unity.Configuration.UnityConfigurationSection, Microsoft.Practices.Unity.Configuration"/></configSections><unity xmlns="http://schemas.microsoft.com/practices/2010/unity"><assembly name="UnityAOPConfig"/><namespace name="UnityAOPConfig"/><!--新增配置节扩展，用于下面的<interception>配置节--><sectionExtension  type="Microsoft.Practices.Unity.InterceptionExtension.Configuration.InterceptionConfigurationExtension,Microsoft.Practices.Unity.Interception.Configuration" /><container name="LoginContainer"><!--为容器增加Interception扩展，如不增加下面interception配置会报错--><extension type="Interception"/><interception><!--增加一个名为UserLog的拦截策略，用于记录日志--><policy name="UserLog"><!--新增MemberNameMatchingRule匹配规则，同时需要同过配置初始化匹配规则构造函数具体可查看Unity.InterceptionExtension.PolicyInjection.MatchRule下具体类--><matchingRule name="rule1" type="MemberNameMatchingRule"><lifetime type="singleton"/><constructor><param name="nameToMatch" value="Login"/></constructor></matchingRule><!--增加调用处理程序，这边指定的是我自定义的UserLogCallHandler--><!--同样也需要初始化构造函数--><callHandler name="handler1"type="UserLogCallHandler"><lifetime type="singleton"/><constructor><param name="message" type="System.String" value="登录成功！"></param><param name="parameterName" type="System.String" value=" "></param></constructor></callHandler></policy></interception><!--注册对象关系，需要注意的是需要为这个注册增加TransparentProxyInterceptor的拦截器--><register type="IStudentManage" mapTo="StudentManage"><interceptor type="TransparentProxyInterceptor" /><interceptionBehavior type="PolicyInjectionBehavior" /></register></container></unity>
</configuration>

  public static IUnityContainer GetIUnityContainer(string nodeName){//根据文件名获取指定config文件var fileMap = new ExeConfigurationFileMap { ExeConfigFilename = "Web.config" };//从config文件中读取配置信息Configuration configuration =ConfigurationManager.OpenMappedExeConfiguration(fileMap, ConfigurationUserLevel.None);var unitySection = (UnityConfigurationSection)configuration.GetSection("unity");var container = new UnityContainer().LoadConfiguration(unitySection, nodeName);return container;}protected void btnSubmit_Click(object sender, EventArgs e){IUnityContainer container = new UnityContainer().LoadConfiguration("LoginContainer");IStudentManage studentBll = container.Resolve<IStudentManage>();if (studentBll.Login(txtUid.Text.Trim(), txtPwd.Text.Trim())){if (string.IsNullOrEmpty(Request.QueryString["returnUrl"]) == false){Response.Redirect(Request.QueryString["returnUrl"]);}else{Response.Redirect("~/Default.aspx");}}else{ltMsg.Text = "用户名或密码不正确,请重试!";}}}