登录信息存入session时成功读取失败。
一个手机网页，用户登录后，信息可以正常存入session，后面读的时候提示获取usersession出错session.cs
using System;--------------------编程问答-------------------- login.ashx
using System.Collections;
using System.Collections.Generic;
using System.Web;
namespace wap
{
[Serializable]
public class UserSession
{
/// <summary>
/// 初始化用户登录Session
/// </summary>
public UserSession(int _id, string _loginname, int _roleid, string _roleflag, int _allowflag, int _status, int _companyid, string _companyname, string _realname, int _companytype, bool _ismanager, int _grade, int _pid, int _companyflag)
{
this.Id = _id;
this.LoginName = _loginname;
this.RoleId = _roleid;
this.RoleFlag = _roleflag;
this.AllowFlag = _allowflag;
this.Status = _status;
this.CompanyId = _companyid;
this.CompanyName = _companyname;
this.RealName = _realname;
this.CompanyType = _companytype;
this.IsManager = _ismanager;
this.Grade = _grade;
this.Pid = _pid;
this.CompanyFlag = _companyflag;
}
public int Id;
public string LoginName;
public int RoleId;
public string RoleFlag;
public int AllowFlag;
public int Status;
public int CompanyId;
public string CompanyName;
public string RealName;
public int CompanyType;
public bool IsManager;
public int Grade;
public int Pid;
public int CompanyFlag;
}
[Serializable]
public class SessionBox
{
private SessionBox() { }
#region 用户Session操作
/// <summary>
/// 檢測User Session是否存在
/// </summary>
/// <returns></returns>
public static bool CheckUserSession()
{
object o = System.Web.HttpContext.Current.Session["USER"];
if (o == null)
return false;
else
return true;
}
/// <summary>
/// 登记User Session
/// </summary>
/// <param name="userinfo"></param>
public static void CreateUserSession(UserSession userinfo)
{
//if (System.Web.HttpContext.Current.Session["USER"] == null)
//{
HttpContext.Current.Session["USER"] = userinfo;
//}
}
/// <summary>
/// 获取User Session
/// </summary>
/// <returns></returns>
public static UserSession GetUserSession()
{
object o = System.Web.HttpContext.Current.Session["USER"];
if (o == null) throw new ExceptionSession("读取UserSession失败。");
else return (o as UserSession);----------一就是这一名报错 }
/// <summary>
/// 移除User Session
/// </summary>
public static void RemoveUserSession()
{
object o = System.Web.HttpContext.Current.Session["USER"];
if (o != null) System.Web.HttpContext.Current.Session.Remove("USER");
}
#endregion
}
public class ExceptionSession : Exception
{
public ExceptionSession() : base() { }
public ExceptionSession(string message) : base(message) { }
public ExceptionSession(string message, Exception inner) : base(message, inner) { }
}
}
--------------------编程问答-------------------- main.aspx.cs
using System;
using System.Collections.Generic;
using System.Web;
using System.Data;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Configuration;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using RsLib;
using RsDBUtility;
using RsModel;
using System.Web.SessionState;
namespace wap
{
/// <summary>
/// Handler1 的摘要说明
/// </summary>
public class Handler1 : IHttpHandler, IRequiresSessionState, IReadOnlySessionState
{
public void ProcessRequest(HttpContext context)
{
string txtName = context.Request.Form["username"].Trim();
string txtPassword = context.Request.Form["pwd"];
if (Checkusername(txtName, txtPassword))
{
int uid;
string ret = userlogin(txtName , txtPassword, out uid);
if (uid > 0 && ret == "成功登录")
{
Users model = new Users();
model = GetUserModel(uid);
model.RoleFlag = CheckRoleFlag(model.RoleFlag, model.RoleId);
UserSession us = new UserSession(model.Id,
model.UserName,
model.RoleId,
model.RoleFlag,
model.AllowFlag,
model.Status,
model.CompanyId,
model.CompanyName,
model.RealName,
model.CompanyType,
model.IsManager,
model.Grade,
model.Pid,
model.CompanyFlag);
SessionBox.CreateUserSession(us);
//context.Response.Buffer = true;
//context.Response.ExpiresAbsolute = DateTime.Now.AddDays(-1);
//context.Response.AddHeader("pragma", "no-cache");
//context.Response.AddHeader("cache-control", "");
//context.Response.CacheControl = "no-cache";
context.Response.ContentType = "text/vnd.wap.wml";
context.Response.Redirect("main.aspx");
}
else
{
context.Response.ContentType = "text/vnd.wap.wml";
context.Response.Redirect("error.aspx", false);
}
}
else
{
//System.Web.HttpContext.Current.Response.Write("您的用户名或密码错误");
context.Response.Redirect("error.aspx", false);
}
}
public bool Checkusername(string username, string password)
{
int uid;
string str = userlogin(username, password, out uid);
if (str=="成功登录")
{
return true;
}
else
{
return false;
}
}
public static string userlogin(string username,string passwrod,out int uid)
{
string str;
int ret = Login(username, SecurityEncryption.MD5(passwrod, 32), out uid);
switch (ret)
{
case 0:
str = "用户不存在"; break;
case 1:
str = "密码错误"; break;
case 2:
str = "用户锁定"; break;
case 3:
str = "成功登录"; break;
default:
str = "未知错误"; break;
}
return str;
}
public static int Login(string UserName, string pwd, out int uid)
{
IDataParameter[] parameters = {
new SqlParameter("@userName", SqlDbType.NVarChar,128),
new SqlParameter("@userPassword", SqlDbType.NVarChar,128),
new SqlParameter("@uid",SqlDbType.Int),
new SqlParameter("@ret",SqlDbType.Int)
};
parameters[0].Value = UserName;
parameters[1].Value = pwd;
parameters[2].Direction = ParameterDirection.Output;
parameters[3].Direction = ParameterDirection.Output;
int rows;
SqlServerHelper.RunProcedure("m_spUserLogin", parameters, out rows);
int ret = int.Parse(parameters[3].Value.ToString());
uid = int.Parse(parameters[2].Value.ToString());
return ret;
}
public Users GetUserModel(int UserID)
{
IDataParameter[] parameters = {
new SqlParameter("@Id",SqlDbType.Int)
};
parameters[0].Value = UserID;
RsModel.Users model = new RsModel.Users();
DataSet ds = SqlServerHelper.RunProcedure("m_spUserInfo", parameters, "UserInfo");
if (ds.Tables[0].Rows.Count > 0)
{
DataRow dr = ds.Tables[0].Rows[0];
model.Id = UserID;
model.UserName = dr["UserName"].ToString();
model.RealName = dr["RealName"].ToString();
model.Sex = dr["Sex"].ToString();
model.Mobile = dr["Mobile"].ToString();
model.Phone = dr["Phone"].ToString();
model.CardNo = dr["CardNo"].ToString();
model.CreateName = dr["CreateName"].ToString();
model.CreateTime = DateTime.Parse(dr["CreateTime"].ToString());
model.ModifyName = dr["ModifyName"].ToString();
if (dr["ModifyTime"].ToString() != "")
model.ModifyTime = DateTime.Parse(dr["ModifyTime"].ToString());
model.VerifyName = dr["VerifyName"].ToString();
if (dr["VerifyTime"].ToString() != "")
model.VerifyTime = DateTime.Parse(dr["VerifyTime"].ToString());
if (dr["LastTime"].ToString() != "" && dr["LastTime"] != null)
{
model.LastTime = DateTime.Parse(dr["LastTime"].ToString());
}
if (dr["Status"].ToString() != "")
{
model.Status = int.Parse(dr["Status"].ToString());
}
model.AllowFlag = int.Parse(dr["AllowFlag"].ToString());
model.IsOnline = int.Parse(dr["IsOnline"].ToString());
model.Remark = dr["Remark"].ToString();
//读取角色
model.RoleId = int.Parse(dr["RoleId"].ToString());
model.RoleFlag = dr["RoleFlag"].ToString();
if (dr["CompanyId"].ToString() != "")
{
DataTable dt = ds.Tables[1];
model.CompanyId = int.Parse(dr["CompanyId"].ToString());
if (dt.Rows.Count > 0)
{
model.CompanyType = int.Parse(dt.Rows[0]["CompanyType"].ToString());
if (dr["Id"].ToString() == dt.Rows[0]["Manager"].ToString())
model.IsManager = true;
else
model.IsManager = false;
model.CompanyName = dt.Rows[0]["CompanyName"].ToString();
model.Grade = int.Parse(dt.Rows[0]["Grade"].ToString());
model.Pid = int.Parse(dt.Rows[0]["Pid"].ToString());
model.CompanyFlag = int.Parse(dt.Rows[0]["AllowFlag"].ToString());
}
else
{
model.CompanyType = 1;
model.IsManager = true;
model.CompanyName = "";
model.Grade = 0;
model.Pid = 0;
model.CompanyFlag = 1;
}
}
return model;
}
else
{
return null;
}
}
protected string CheckRoleFlag(string rf, int rid)
{
string[] r = rf.Split(',');
string[] n = Role.GroupRole[rid].Split(',');
if (r.Length >= n.Length)
return rf;
else
{
string o = "";
for (int i = r.Length; i < n.Length; i++)
{
o += "," + n[i];
}
return rf + o;
}
}
public bool IsReusable
{
get
{
return false;
}
}
}
}
--------------------编程问答-------------------- 会不会你穿的类不是UserSession 而是null? --------------------编程问答-------------------- 在main.aspx页面，我用了<%=un%>来显示登录的用户名。
using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
namespace wap
{
public partial class main : System.Web.UI.Page
{
public string un;
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
un = SessionBox.GetUserSession().RealName;
}
}
}
}
在登录的过程中对session存入信息没有问题，
在读的时候，运行到
public static UserSession GetUserSession()
{
object o = System.Web.HttpContext.Current.Session["USER"];
if (o == null) throw new ExceptionSession("读取UserSession失败。");
else return (o as UserSession ///////这里报错：读取UserSession失败
}
--------------------编程问答--------------------
？？引用肯定是没有错的 --------------------编程问答-------------------- 那位大神知道，，速来回答一下，搞了两天，都是这个错误。3Q3Q
补充：.NET技术 , ASP.NET
