UserCommonOperation用户类

namespace Web2ASPNET2.UserCommonOperation
{
 public class UserInfo
 {
  #region 定义属性

  private int userID;
  private string username;
  private DateTime loginDate;

  public int UserID
  {
   get { return userID; }
   set { userID = value; }
  }

  public string UserName
  {
   get { return username; }
   set { username = value; }
  }

  public DateTime LoginDate
  {
   get { return loginDate; }
   set { loginDate = value; }
  }

  #endregion

  #region 构造函数

  public UserInfo() { }

  /// <summary>
  /// 只使用用户ID
  /// </summary>
  /// <param name="userID"></param>
  public UserInfo(int userID)
  {
   this.userID = userID;
   this.username = string.Empty;
   this.loginDate = DateTime.Now;
  }
  /// <summary>
  /// 使用用户ID和用户名称
  /// </summary>
  /// <param name="userID"></param>
  /// <param name="username"></param>
  public UserInfo(int userID,string username)
  {
   this.userID = userID;
   this.username = username;
   this.loginDate = DateTime.Now;
  }
  /// <summary>
  /// 使用用户ID、用户名称和登录时间
  /// </summary>
  /// <param name="userID"></param>
  /// <param name="username"></param>
  /// <param name="loginDate"></param>
  public UserInfo(int userID,string username,DateTime loginDate)
  {
   this.userID = userID;
   this.username = username;
   this.loginDate = loginDate;
  }

  #endregion
 }

 public class UserCommonOperation
 {
  private readonly static string UserIDKey = "USERIDKEY";

  #region 存储用户登录信息

  public UserCommonOperation() { }

  /// <summary>
  /// 存储用户ID
  /// </summary>
  /// <param name="session"></param>
  /// <param name="userID"></param>
  public static void StoreUserInfo(HttpSessionState session,int userID)
  {
   if(session == null) return;
   ///存储用户信息
   session.Add(session.SessionID + UserIDKey,new UserInfo(userID));
  }

  /// <summary>
  /// 存储用户ID和名称
  /// </summary>
  /// <param name="session"></param>
  /// <param name="userID"></param>
  /// <param name="username"></param>
  public static void StoreUserInfo(HttpSessionState session,int userID,
   string username)
  {
   if(session == null) return;
   ///存储用户信息
   session.Add(session.SessionID + UserIDKey,new UserInfo(userID,username));
  }

  /// <summary>
  /// 存储用户ID、用户名称和登录时间
  /// </summary>
  /// <param name="session"></param>
  /// <param name="userID"></param>
  /// <param name="username"></param>
  /// <param name="loginDate"></param>
  public static void StoreUserInfo(HttpSessionState session,int userID,
   string username,DateTime loginDate)
  {
   if(session == null) return;
   ///存储用户信息
   session.Add(session.SessionID + UserIDKey,new UserInfo(userID,username,loginDate));
  }
  
  /// <summary>
  /// 存储保存用户ID、用户名称和登录时间的UserInfo对象
  /// </summary>
  /// <param name="session"></param>
  /// <param name="info"></param>
  public static void StoreUserInfo(HttpSessionState session,UserInfo info)
  {
   if(session == null) return;
   ///存储用户信息
   session.Add(session.SessionID + UserIDKey,info);
  }

  /// <summary>
  /// 获取用户登录信息
  /// </summary>
  /// <param name="session"></param>
  /// <returns></returns>
  public static UserInfo GetUserInfo(HttpSessionState session)
  {
   return (UserInfo)session[session.SessionID + UserIDKey];
  }

  /// <summary>
  /// 清空用户登录信息
  /// </summary>
  /// <param name="session"></param>
  public static void ClearAndAbandon(HttpSessionState session)
  {   ///清空所有对象并取消会话
   session.Clear();
   session.Abandon();
  }

  #endregion
 }
}