为什么*.ashx一般处理程序不能访问Session值?-优快云博客

本文介绍了一个使用C#实现的ASP.NET WebHandler示例代码，该Handler用于处理不同模块请求，如获取产品类型列表、根据ID获取公司信息及插入新产品等操作。通过具体的代码实例展示了如何使用WebHandler进行数据交互。

<%@ WebHandler Language="C#" Class="productHandler" %>

using System;
using System.Web;
using JBTCard.Entity.CompanyEntity;
using JBTCard.Business.CompanyBS;
using System.Collections.Generic;
using Newtonsoft.Json;
[b]using System.Web.SessionState;[/b]

public class productHandler : IHttpHandler, [b]IRequiresSessionState, IReadOnlySessionState[/b]{

public void ProcessRequest (HttpContext context) {
string moduleId = context.Request.Form["moduleId"].ToString();
string message = "";
switch (moduleId)
{
case "getPTypeList":
IList<ProductTypeIdNameEntity> list = ProductTypeBS.GetPTypeListIdName();
message = JavaScriptConvert.SerializeObject(list);
break;
case "getCompanyById":
[b]int cid = Convert.ToInt32(context.Session["cid"]);[/b] CompanyEntity company = CompanyBS.GetCompanyEntyById(1);
message = JavaScriptConvert.SerializeObject(company);
break;
case "insert":
string condis = context.Request.Form["condi"].ToString();
ProductEntity model = (ProductEntity)JavaScriptConvert.DeserializeObject(condis, typeof(ProductEntity));

bool b = ProductBS.AddProduct(model);
if (b)
{
message = "{success:true}";
}
else
{
throw new Exception("商品添加失败！");
}
break;
}
context.Response.ContentType = "text/javascript";
context.Response.Write(message);
}

public bool IsReusable {
get {
return false;
}
}

}

只需要加上黑体部分的接口就好了!