using System;using System.Collections.Generic;using System.Collections.Specialized;using System.Linq;using System.Reflection;using System.Web;using System.ComponentModel;using System.Web.Script.Serialization;namespace HHSoft.PSMIS.Web.WebSite.UserHandler{    /// 
    /// HandlerBase 的摘要说明    /// 
    public class HandlerBase : IHttpHandler    {        /// 
        /// 指定过来的http请求类型  主要指定action方法名称的接收方式 get 或者 post        /// 
        protected NameValueCollection httpReuqest = HttpContext.Current.Request.Form;        /// 
        /// 指定返回头        /// 
        protected string contentType = "text/plain";        /// 
        /// 返回值类型        /// 
        public ReturnType returnType = ReturnType.json;        /// 
        /// 指定接收action方法的参数名称        /// 
        protected string actionName = "action";        //获取当前的http context        protected HttpContext Context        {            get            {                return HttpContext.Current;            }        }        public void Proce***equest(HttpContext context)        {            //RequestType = context.Request.ServerVariables["Request_Method"];            string requestContentType ="";            string requestReturnType="";            requestContentType = httpReuqest["contentType"];            requestReturnType = httpReuqest["returnType"];            if (!string.IsNullOrEmpty(requestReturnType))            {                returnType = (ReturnType)Enum.Parse(typeof(ReturnType), requestReturnType);            }            if (string.IsNullOrEmpty(requestContentType))            {                context.Response.ContentType = this.contentType;            }            else            {                context.Response.ContentType = requestContentType;            }            try            {                //动态调用方法 当然  你还可以在这里加上是否为同域名请求的判断                this.DynamicMethod();            }            catch (AmbiguousMatchException amEx)            {                                                      if (returnType == ReturnType.json)                {                    this.PrintErrorJson(string.Format("根据该参数{0}找到了多个方法", amEx.Message));                }                else                {                    this.Context.Response.Write(string.Format("error,根据该参数{0}找到了多个方法", amEx.Message));                }            }            catch (ArgumentException argEx)            {                if (returnType == ReturnType.json)                {                    this.PrintErrorJson("参数异常" + argEx.Message);                }                else                {                    this.Context.Response.Write("error,参数异常" + argEx.Message);                }                                                 }            catch (ApplicationException apEx)            {                if (returnType == ReturnType.json)                {                    this.PrintErrorJson("程序异常" + apEx.Message);                }                else                {                    this.Context.Response.Write("error,程序异常" + apEx.Message);                }                                                 }        }        #region 动态调用方法        /// 
        /// 动态调用方法        /// 
        private void DynamicMethod()        {            //根据指定的请求类型获取方法名            string action = this.httpReuqest[this.actionName];            if (!string.IsNullOrEmpty(action))            {                //获取方法的实例  非静态 需要Public访问权限 忽略大小写                MethodInfo methodInfo = this.GetType().GetMethod(action, BindingFlags.Instance | BindingFlags.Public | BindingFlags.IgnoreCase);                if (methodInfo != null)                {                    //调用方法                    methodInfo.Invoke(this, null);                }                else                {                    throw new ApplicationException(string.Format("没有找到方法{0}", action));                }            }            else            {                throw new ArgumentNullException("没有找到调用方法参数或者方法名为空");            }        }        #endregion        #region 打印Json的相关处理        #region 打印Json的相关处理        /// 
        /// 打印遇到异常的json        /// 
        ///         protected void PrintErrorJson(string msg)        {            this.PrintJson("error", msg);        }        /// 
        /// 打印成功处理的json        /// 
        ///         protected void PrintSuccessJson(string msg)        {            this.PrintJson("success", msg);        }        /// 
        /// 打印json        /// 
        ///         ///         protected void PrintJson(string state, string msg)        {            this.Context.Response.Write("{\"state\":\"" + state + "\",\"msg\":\"" + msg + "\"}");        }        protected void PrintString(string obj)        {            this.Context.Response.Write(obj);        }        #endregion        #endregion        public bool IsReusable        {            get            {                return false;            }        }    }    public enum ReturnType    {        /// 
        /// 返回字符串        /// 
        [Description("返回字符串")]        text=0,        /// 
        /// 返回json类型        /// 
        [Description("返回json类型")]        json=1    }}执勤啊

/// 
   /// HandlerBase 的摘要说明   /// 
   public class HandlerBase : IHttpHandler   {       /// 
       /// 指定过来的http请求类型  主要指定action方法名称的接收方式 get 或者 post       /// 
       protected NameValueCollection httpReuqest = HttpContext.Current.Request.Form;       /// 
       /// 指定返回头       /// 
       protected string contentType = "text/plain";       /// 
       /// 返回值类型       /// 
       public ReturnType returnType = ReturnType.json;       /// 
       /// 指定接收action方法的参数名称       /// 
       protected string actionName = "action";       //获取当前的http context       protected HttpContext Context       {           get           {               return HttpContext.Current;           }       }       public void Proce***equest(HttpContext context)       {           //RequestType = context.Request.ServerVariables["Request_Method"];           string requestContentType ="";           string requestReturnType="";           requestContentType = httpReuqest["contentType"];           requestReturnType = httpReuqest["returnType"];           if (!string.IsNullOrEmpty(requestReturnType))           {               returnType = (ReturnType)Enum.Parse(typeof(ReturnType), requestReturnType);           }           if (string.IsNullOrEmpty(requestContentType))           {               context.Response.ContentType = this.contentType;           }           else           {               context.Response.ContentType = requestContentType;           }           try           {               //动态调用方法 当然  你还可以在这里加上是否为同域名请求的判断               this.DynamicMethod();           }           catch (AmbiguousMatchException amEx)           {                                                                 if (returnType == ReturnType.json)               {                   this.PrintErrorJson(string.Format("根据该参数{0}找到了多个方法", amEx.Message));               }               else               {                   this.Context.Response.Write(string.Format("error,根据该参数{0}找到了多个方法", amEx.Message));               }           }           catch (ArgumentException argEx)           {               if (returnType == ReturnType.json)               {                   this.PrintErrorJson("参数异常" + argEx.Message);               }               else               {                   this.Context.Response.Write("error,参数异常" + argEx.Message);               }                                                            }           catch (ApplicationException apEx)           {               if (returnType == ReturnType.json)               {                   this.PrintErrorJson("程序异常" + apEx.Message);               }               else               {                   this.Context.Response.Write("error,程序异常" + apEx.Message);               }                                                            }       }       #region 动态调用方法       /// 
       /// 动态调用方法       /// 
       private void DynamicMethod()       {           //根据指定的请求类型获取方法名           string action = this.httpReuqest[this.actionName];           if (!string.IsNullOrEmpty(action))           {               //获取方法的实例  非静态 需要Public访问权限 忽略大小写               MethodInfo methodInfo = this.GetType().GetMethod(action, BindingFlags.Instance | BindingFlags.Public | BindingFlags.IgnoreCase);               if (methodInfo != null)               {                   //调用方法                   methodInfo.Invoke(this, null);               }               else               {                   throw new ApplicationException(string.Format("没有找到方法{0}", action));               }           }           else           {               throw new ArgumentNullException("没有找到调用方法参数或者方法名为空");           }       }       #endregion       #region 打印Json的相关处理       #region 打印Json的相关处理       /// 
       /// 打印遇到异常的json       /// 
       ///        protected void PrintErrorJson(string msg)       {           this.PrintJson("error", msg);       }       /// 
       /// 打印成功处理的json       /// 
       ///        protected void PrintSuccessJson(string msg)       {           this.PrintJson("success", msg);       }       /// 
       /// 打印json       /// 
       ///        ///        protected void PrintJson(string state, string msg)       {           this.Context.Response.Write("{\"state\":\"" + state + "\",\"msg\":\"" + msg + "\"}");       }       protected void PrintString(string obj)       {           this.Context.Response.Write(obj);       }       #endregion       #endregion       public bool IsReusable       {           get           {               return false;           }       }   }   public enum ReturnType   {       /// 
       /// 返回字符串       /// 
       [Description("返回字符串")]       text=0,       /// 
       /// 返回json类型       /// 
       [Description("返回json类型")]       json=1   }之前