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最新推荐文章于 2025-05-07 08:30:00 发布

原创最新推荐文章于 2025-05-07 08:30:00 发布 · 175 阅读

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#HTML

本文介绍了一个使用ASP.NET实现的应用程序状态管理方案。通过解析HTTP请求的内容类型，并根据特定条件更新应用程序中的站点状态，实现了在线离线状态的切换。此外，还介绍了如何利用定时器定期检查并重置站点状态。

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服务器端
Request.ContentType = "text/html";
Response.ContentType = "text/html";
StreamReader reader = new StreamReader(Request.InputStream);

string test = reader.ReadToEnd();
Application.Lock();
if(test=="1010")
{
if( Session["StationName"]==null)
{
return;
}
string statioNname = Session["StationName"].ToString();
string stationId = Session["LockNo"].ToString();
StationState ss=new StationState {StationID = stationId, StationName = statioNname, online = "online"};

List<StationState> list = (List<StationState>)Application["BufferdStations"] ?? new List<StationState>();

if(list.Count<1)
{

list.Add(ss);
Application["BufferdStations"] = list;

}
foreach (StationState item in list)
{
if (item.StationName == statioNname&&item.online=="offline")
{
item.online = "online";
}
}
Application["BufferdStations"] = list;
}
Application.UnLock();

全局Global

System.Timers.Timer t = new System.Timers.Timer(1000 * Convert.ToInt32(System.Configuration.ConfigurationManager.AppSettings["server_time"]));

protected void Application_Start(object sender, EventArgs e)
{
t.AutoReset = true;
t.Enabled = true;
//if (common.func.get_key("can_do") == "1")//也是在web.config中存取是否进行定时处理，其中common.func.get_key是自定义的获取设置的函数
t.Elapsed += Fun;

List<StationState> States =
new List<StationState>();

Application.Add("BufferdStations", States);

System.Diagnostics.Debug.WriteLine("Application_Start");
}
private void Fun(object sender, System.Timers.ElapsedEventArgs e)
{
try{
List<StationState> list = (List<StationState>)Application["BufferdStations"];
if(list==null)
{list=new List<StationState>();

}
if (list.Count<1)
{
return;
}
Application.Lock();
foreach (StationState item in list)
{
if (item.online != "online")
{
list.Remove(item);

}
}
Application["BufferdStations"] = list;
Application.UnLock();

List<StationState> listReSet = (List<StationState>) Application["BufferdStations"];
Application.Lock();
foreach (StationState item in listReSet)
{

item.online = "offline";

}
Application["BufferdStations"] = listReSet;

Application.UnLock();
}
catch(Exception se)
{

}
}