从类库访问会话对象 [英] access session object from classlibrary

问题描述

我正在开发一个使用两个子项目的应用程序体系结构:a)asp.net Web应用程序(涵盖用户界面和业务逻辑)和b)类库. (它涵盖了数据访问层)

系统用户成功登录后，用户信息将存储在会话对象中.

我面临的问题是，当我尝试访问类库项目(数据访问层)中的该会话对象时，它始终返回null.

我需要访问类库项目中的会话对象，因为在我的情况下，每个用户都有用于数据库访问的自己的用户名和密码(出于安全原因)；

因此，如何在类库项目

中从会话对象读取和写入会话对象

解决方案

可能有帮助

 使用 System.Web.SessionState;
///  <  > 
 ///  Class1的摘要描述
 ///  <  /summary  > 
 公共  class  Class1:IRequiresSessionState
{
    公共 Class1()
    {
        //  
        //  TODO:在此处添加构造函数逻辑
        //  
    }
    公共 对象 GetSession(字符串键){

         对象 sessionKey = HttpContext.Current.Session [key];
         返回 sessionKey；
    }
} 

非常感谢raju melveetilpurayil，我尝试了您的代码，在我所质疑的情况下效果很好.
但是现在，我需要在Web项目和类库项目之间实现wcf层.

现在，我的Web应用程序(用户界面)调用wcf服务(我的服务/功能)，并且wcf与类库(数据访问层)进行交互.

Web应用程序< =====> WCF< =====>类库< =====>数据库


我如何实现与上一个方案所解决的相同的事情.

I am developing an application architecture that uses 2 sub projects: a) asp.net web application (it covers user interface and business logic) and b) class library. (it covers data access layer)

After system user successfully logs in , the user information is stored in a session object.

The problem i am facing is when i try to access that session object in class library project(data access layer), it always returns null.

I need to access the session object in class library project because, in my case each user has their own username and password for database access(for security reasons);

So, How how do i read and write from/to session object in class library project

解决方案

might help

using System.Web.SessionState;
/// <summary>
/// Summary description for Class1
/// </summary>
public class Class1:IRequiresSessionState
{
    public Class1()
    {
        //
        // TODO: Add constructor logic here
        //
    }
    public object GetSession(string key) {

         object sessionKey = HttpContext.Current.Session[key];
         return sessionKey;
    }
}

thank u very much raju melveetilpurayil,i tried your code and it works quite well for the scenario i questioned about.
but now, i need to implement wcf layer between web project and class library project.

Now My web application(User Interface) calls wcf service(My services/functions) and wcf interacts with the class library(data access layer).

Web Application <=====> WCF <=====> Class Library <=====> Database


how do i achieve the same thing that you solved for previous scenario.

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