<%@ Page Language="C#" AutoEventWireup="true" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> protected void Page_Load(object sender, EventArgs e) { Response.Expires = -1; var m = Request["m"]; if (string.Compare(m, "GetData", true) == 0) { GetData(); Response.End(); } sqlCmd.InnerText = sql; } private List<ElecStatus> ElecScaleList = new List<ElecStatus>() { new ElecStatus(){GroupId="192.168.77.1",Status=-1}, new ElecStatus(){GroupId="192.168.77.2",Status=-1}, new ElecStatus(){GroupId="192.168.77.3",Status=-1}, new ElecStatus(){GroupId="192.168.77.4",Status=-1}, new ElecStatus(){GroupId="192.168.77.5",Status=-1}, new ElecStatus(){GroupId="192.168.77.6",Status=-1} }; private void GetData() { var list = Query(); var expScaleList = ElecScaleList.Except(list); var retList = list.Union(expScaleList).OrderBy(ent => ent.GroupId); //专发器访问状态 if (HealthMoniter.Running) { foreach (var webSite in HealthMoniter.WebSiteList) { var it=retList.FirstOrDefault(ent => ent.GroupId == webSite.Url); if (it != null) { it.RepeaterStatus = webSite.Status; } } } else { var q= ElecScaleList.Select(ent => new WebSiteStatus() { Url = ent.GroupId, Status = -1, LastCheckTime = DateTime.Now }); HealthMoniter.StartMonitor(q.ToList()); } var sb = new StringBuilder(); using (var writer = new HtmlTextWriter(new System.IO.StringWriter(sb))) { Repeater1.DataSource = retList; Repeater1.DataBind(); Repeater1.RenderControl(writer); writer.Flush(); } Response.Write("监控数:" + HealthMoniter.WebSiteList.Count +"<br/>"); Response.Write("获取时间:" + DateTime.Now + "<br/>" + sb.ToString()); } private static string ConnStr = @"data source=192.168.1.91;initial catalog=JL_MFG;persist security info=True;user id=sa;password=admin;multipleactiveresultsets=True;"; private String sql = @"select * from ElecScale where RecId in ( select max(RecId) from ElecScale where AddTime>= dateAdd(ss,-5,getdate()) group by GroupId ) "; private List<ElecStatus> Query() { #region cmd #endregion var list = new List<ElecStatus>(); using (System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection(ConnStr)) { using (System.Data.SqlClient.SqlCommand cmd = new System.Data.SqlClient.SqlCommand(sql, conn)) { conn.Open(); using (var reader = cmd.ExecuteReader()) { while (reader.Read()) { var ent = new ElecStatus(); ent.GroupId = reader["GroupId"].ToString(); ent.Legend = reader["Legend"].ToString(); ent.V = reader["V"].ToString(); ent.Status = 0; list.Add(ent); } } } } return list; } public class ElecStatus { public String GroupId { get; set; } public String V { get; set; } public String Legend { get; set; } /// <summary> /// 0:正常1:异常 /// </summary> public int Status { get; set; } public DateTime AddTime { get; set; } public int? RepeaterStatus { get; set; } public override bool Equals(object obj) { if (obj == null) return false; var ent = (obj as ElecStatus); return this.GroupId.Equals(ent.GroupId); } public override int GetHashCode() { return GroupId.GetHashCode(); } } public class WebSiteStatus { public String Url { get; set; } public int? Status { get; set; } public DateTime? LastCheckTime { get; set; } } public class HealthMoniter : IDisposable { private static readonly HealthMoniter _Instance = new HealthMoniter(); public static void StartMonitor(List<WebSiteStatus> list) { _Instance.WebSites.Clear(); _Instance.WebSites.AddRange(list); _Instance.Start(); } public static void StopMonitor() { _Instance.Stop(); } public static List<WebSiteStatus> WebSiteList { get { return _Instance.WebSites; } } public static bool Running { get { return _Instance.IsRunning; } } private bool IsRunning { get; set; } private bool IsEnabled { get; set; } private List<WebSiteStatus> WebSites { get; set; } private HealthMoniter() { IsRunning = false; IsEnabled = false; this.WebSites = new List<WebSiteStatus>(); } public void Start() { lock (this) { if (IsRunning) return; IsEnabled = true; System.Threading.Tasks.Task.Factory.StartNew(_Start); } } private void _Start() { IsRunning = true; while (IsEnabled) { var taskList = new List<System.Threading.Tasks.Task>(); foreach (var it in WebSites) { var website = it; System.Threading.Tasks.Task task = new System.Threading.Tasks.Task(() => { try { var rnd = "/login.cgi?" + DateTime.Now.Ticks; System.Net.WebClient wc = new System.Net.WebClient(); var str = wc.DownloadString("http://" + website.Url + rnd); Console.WriteLine("http://" + website.Url + rnd); if (!string.IsNullOrWhiteSpace(str)) { if (str.IndexOf("www.usr.cn") > 0) { website.Status = 0; website.LastCheckTime = DateTime.Now; } } } catch (Exception) { website.LastCheckTime = DateTime.Now; website.Status = -4; } }); taskList.Add(task); task.Start(); } System.Threading.Tasks.Task.WaitAll(taskList.ToArray()); System.Threading.Thread.Sleep(1000 * 5); } IsRunning = false; } public void Stop() { IsEnabled = false; } private bool disposed = false; /// <summary> /// Performs application-defined tasks associated with freeing, /// releasing, or resetting unmanaged resources. /// </summary> public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } /// <summary> /// Releases unmanaged and - optionally - managed resources /// </summary> /// <param name="disposing"><c>true</c> to release both managed /// and unmanaged resources; <c>false</c> /// to release only unmanaged resources. /// </param> protected virtual void Dispose(bool disposing) { if (!this.disposed) { if (disposing) { try { Stop(); } catch { } } disposed = true; } } } </script> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>电子称状态监控</title> <script type="text/javascript" src="Scripts/jquery-1.4.1-vsdoc.js"></script> <script type="text/javascript" src="Scripts/jquery.timers-1.1.2.js"></script> <script type="text/javascript"> $(document).ready(function () { setInterval(queryScale, 1000); }); function queryScale() { var url = "/ESM.aspx"; $("#panelShow").load(url, { m: "GetData", rnd: new Date().getTime() }); } </script> <style type="text/css"> body { font-size: 12px; } </style> </head> <body> <form id="form1" runat="server"> <div id="panelShow"> <asp:Repeater ID="Repeater1" runat="server"> <HeaderTemplate> <table style=" 100%; background-color: #eeeeee" cellspacing="2"> <tr style="background-color: White; font-weight: bold"> <td style=" 6%"> 编号 </td> <td style=" 20%"> 读数 </td> <td style=" 10%; text-align: center"> 状态 </td> <td style="text-align: center"> 转发器状态 </td> </tr> </HeaderTemplate> <ItemTemplate> <tr style="background-color: White;"> <td> <%#Eval("GroupId").ToString().Substring(11) %> </td> <td> <%#Eval("V") %> </td> <td style="text-align: center"> <%# (int)Eval("Status") == 0 ? "<font color='green'>正常</font>" : "<font color='red'>异常</font>"%> </td> <td style="text-align: center"> <a href='http://<%#Eval("GroupId") %>' target="_blank"><%# (int)Eval("RepeaterStatus") == 0 ? "<font color='green'>正常</font>" : "<font color='red'>异常</font>"%></a> </td> </tr> </ItemTemplate> <FooterTemplate> </table> </FooterTemplate> </asp:Repeater> </div> <hr /> <strong>使用下列语句轮询数据</strong><br /> <textarea id="sqlCmd" runat="server" style=" 100%" name="S1" rows="9"></textarea> </form> </body> </html>
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