/// <summary>
/// 登录信息在数据库中验证成功后调用
/// </summary>
/// <param name="userName">用户名</param>
/// <param name="sessionID">登录流水号</param>
/// <returns>
/// 0:用户及登录流水号成功保存于队列
/// -1:保存失败
/// </returns>
public static int AddUserToList(string userName, long sessionID)
{
// WriteLog.WriteData w = new WriteLog.WriteData();
int ret = 0;
try
{
HashElement hashElt = new HashElement();
hashElt.SessionID = sessionID;
//如果用户已经登录过，则只更新登录流水号及操作时间，否则新加入队列
lock (m_userList.SyncRoot)
{
if (m_userList.ContainsKey(userName))
{
{
m_userList[userName] = hashElt;
}
}
else
{
{
m_userList.Add(userName, hashElt);
}
}
}
}
catch (Exception exp)
{
//System.Console.Out.WriteLine(exp.StackTrace);
//System.Console.Out.WriteLine(exp.Message);
// w.WriteLine(exp.Message + exp.StackTrace, 01);
ret = -1;
}
return(ret);
}
/// <summary>
/// 检查保存在队列中的用户在线是否超过时限，该方法供线程调用
/// </summary>
private static void CheckListTO()
{
//WriteLog.WriteData w = new WriteLog.WriteData();
try
{
//保存待清理的超时在线用户的临时队列
List <string> toKeys = new List <string>();
while (true)
{
{
//线程每隔1分钟执行检查清理操作
Thread.Sleep(1000 * 60);
//遍历保存在线用户的哈希表
lock (m_userList.SyncRoot)
{
foreach (DictionaryEntry deElt in m_userList)
{
{
//如果有超时的在线用户，将超时用户时放入临时的队列中，
//检查完哈希表之后再进行清理操作
//不能在检查过程中执行哈希表的删除键值操作，否则会出现异常。
HashElement htElt = deElt.Value as HashElement;
if (DateTime.Now - htElt.Time > m_tsSub)
{
{
toKeys.Add((string)deElt.Key);
}
}
}
}
//如果有超时的在线用户则进行清理操作
if (0 < toKeys.Count)
{
{
foreach (string key in toKeys)
{
{
m_userList.Remove(key);
}
}
toKeys.Clear();
}
}
}
}
}
}
catch
{
//System.Console.Out.WriteLine(exp.StackTrace);
//System.Console.Out.WriteLine(exp.Message);
//w.WriteLine(exp.Message + exp.StackTrace, 03);
}
}
/// <summary>
/// 除登录外其他所有功能调用之前首先调用该方法
/// </summary>
/// <param name="userName">用户名</param>
/// <param name="sessionID">登录流水号</param>
/// <returns>
/// 0:验证用户登录成功
/// -1:验证用户登录失败
/// -2:用户未登录
/// -3:用户已重新登录或在别处登录
/// </returns>
public static int CheckUserLogin(string userName, long sessionID)
{
//WriteLog.WriteData w = new WriteLog.WriteData();
int ret = 0;
try
{
lock (m_userList.SyncRoot)
{
if (m_userList.ContainsKey(userName))
{
{
HashElement hashElt = m_userList[userName] as HashElement;
if (hashElt.SessionID.Equals(sessionID))
{
{
hashElt.Time = DateTime.Now;
m_userList[userName] = hashElt;
ret = 0;
}
}
else
{
{
ret = -3;
}
}
}
}
else
{
{
ret = -2;
}
}
}
}
catch
{
//w.WriteLine(exp.Message + exp.StackTrace, 02);
//System.Console.Out.WriteLine(exp.StackTrace);
//System.Console.Out.WriteLine(exp.Message);
ret = -1;
}
return(ret);
}