class MyHandlerFactory:IHttpHandlerFactory

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace WebAppHttpHandlerTest
{
    public class MyHandlerFactory:IHttpHandlerFactory
    {
        //IHttpHandlerFactory接口包含两个方法。
        //GetHandler返回实现IHttpHandler接口的类的实例，
        //ReleaseHandler使工厂可以重用现有的处理程序实例。
        #region IHttpHandlerFactory 成员

        public IHttpHandler GetHandler(HttpContext context, string requestType, string url, string pathTranslated)
        {
            string fname = url.Substring(url.LastIndexOf('/') + 1);
            string cname = fname.Substring(0, fname.IndexOf('.'));
            string className = "WebAppHttpHandlerTest." + cname;

            object h = null;

            try
            {
                // 采用动态反射机制创建相应的IHttpHandler实现类。
                h = Activator.CreateInstance(Type.GetType(className));
            }
            catch (Exception e)
            {
                throw new HttpException("工厂不能为类型" + cname + "创建实例。", e);
            }

            return (IHttpHandler)h;
        }

        public void ReleaseHandler(IHttpHandler handler)
        {

        }

        #endregion
    }


    public class Handler1 : IHttpHandler
    {
        #region IHttpHandler 成员
 
        public bool IsReusable
        {
            get { return true; }
        }
 
        public void ProcessRequest(HttpContext context)
        {
            context.Response.Write("<html><body><h1>来自Handler1的信息。</h1></body></html>");
        }
 
        #endregion
    }
 
    public class Handler2 : IHttpHandler
    {
        #region IHttpHandler 成员
 
        public bool IsReusable
        {
            get { return true; }
        }
 
        public void ProcessRequest(HttpContext context)
        {
            context.Response.Write("<html><body><h1>来自Handler2的信息。</h1></body></html>");
        }
 
        #endregion
    }
}
    </roleManager>

    <httpHandlers>
      <!-- <add verb="*" path="*.sky" type="WebAppHttpHandlerTest.MyFirstHandler, WebAppHttpHandlerTest"/> -->
      <add verb="*" path="*.sky" type="WebAppHttpHandlerTest.MyHandlerFactory,WebAppHttpHandlerTest"/>
    </httpHandlers>
    
  </system.web>

  <system.webServer>
     <modules runAllManagedModulesForAllRequests="true"/>
  </system.webServer>
</configuration>

http://localhost:7088/Handler1.sky

http://localhost:7088/Handler2.sky

 

posted @ 2017-10-28 21:35  sky20080101  阅读(81)  评论(0)  编辑  收藏  举报