心跳監控系統
何為心跳監控系統？
故名思義，就是監控某個或某些個程序的運行狀態，就好比醫院里面的心跳監視儀一樣，能夠隨時顯示病人的心跳情況。
心跳監控的目的是什么？
與醫院里面的心跳監視儀目的類似，監控程序運行狀態，一旦出現問題（比如：一些自動運行的服務、程序等突然停止運行了），那么心跳監控系統就能“感知到”並及時的顯示在監控界面上，同時可以通過微信、短信告之相關的人員，以便他們及時處理程序異常，從而避免一些自動運行的服務、程序等突然停止運行而造成的一系列損失
心跳監控系統實現的思路是怎樣的？
核心技術：WCF的雙工通訊
實現步驟：
1.定義WCF的服務契約接口以及回調接口，服務方法主要包括：Start（被監控的程序啟動時調用，即通知監控系統，我已經啟動了）、Stop（被監控的程序停止時調用，即通知監控系統，我已經停止了）、ReportRunning（被監控的程序運行中定時調用，即通知監控系統，我是正常的並在運行中，同時還起到檢測監控系統是否在運行的一個功能，一舉兩得），回調服務方法應有：Listen（這個是給監控系統主動去定時回調被監控的程序（心跳），如果被監控的程序能正常的返回狀態，那么就是正常的，否則有可能已經“死了”，這時監控系統就需要按照預設指令作出相應的操作，比如：監控主界面顯示異常的程序，同時發送異常通知消息給相關人員）
2.建立一個心跳監控系統Winform項目，並實現WCF服務，即集成實現WCF服務宿主程序，同時每一個WCF服務方法均需關聯界面，即：程序啟動了、停止了、運行中均會在界面實時顯示出來或做一些實時統計；
3.其它被監控的程序（指自動運行的服務、程序等）需要集成實現WCF回調接口及開啟WCF服務通訊的功能；
心跳監控系統的運行順序是怎樣的？如何保證監控方與被監控方實時不間斷通訊？
運行順序：
1.開啟心跳監控系統（即：同時開啟WCF服務宿主程序），確保監控服務正常運行；
2.開啟其它被監控的程序，確保開啟客戶端與監控系統的WCF雙工通訊服務正常；
注意：一定要先開啟心跳監控系統，否則其它被監控的程序因無法與監控系統的WCF雙工通訊服務正常連接而報錯或多次嘗試重連；
保證監控方與被監控方實時不間斷通訊：
在保證按照上面所說的運行順序依次開啟心跳監控系統，再開啟其它被監控的程序，正常建立一次通訊后，后續只要任何一方出現通訊中斷，均會自動嘗試重連（主要是客戶端重連，心跳監控系統除非停止運行，否則不會中斷，若因停止運行造成雙方通訊中斷，只需重啟心跳監控系統即可）
通訊模式：
推模式：被監控的程序通過主動的調用WCF服務方法：Start、Stop、ReportRunning 向心跳監控系統告之運行狀態，若通訊失敗，則自動嘗試重連，直至連接成功；
拉模式：心跳監控系統主動回調Listen方法，向被監控的程序索取運行狀態，若通訊失敗，則會在指定時間內多次重試回調客戶端，若客戶端在規定的時間范圍內仍無法返回消息，則視為客戶端異常，那么心跳監控系統則會進行異常的處理；
實現源代碼：
ProgramMonitor.Core 類庫項目：主要是定義WCF服務的相關接口以及實現回調的接口（因為每個客戶端都需實現一遍回調接口，故統一實現，客戶端集成后直接可以用，簡化集成客戶端的開發成本），心跳監控系統及需要被監控的程序均需要依賴該DLL；
ProgramMonitor WINFORM項目：心跳監控系統
整個解決方案如下圖示：
注：由於源代碼相對較多，故不再一一說明，只對重點的代碼作解釋
ProgramMonitor.Core
IListenService：（心跳監控WCF服務契約接口）
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using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Text;
using
System.ServiceModel;
namespace
ProgramMonitor.Core
{
[ServiceContract(Namespace =
"http://www.zuowenjun.cn"
, SessionMode = SessionMode.Required, CallbackContract =
typeof
(IListenCall))]
public
interface
IListenService
{
[OperationContract(IsOneWay =
true
)]
void
Start(ProgramInfo programInfo);
[OperationContract(IsOneWay =
true
)]
void
Stop(
string
programId);
[OperationContract(IsOneWay =
true
)]
void
ReportRunning(ProgramInfo programInfo);
}
}
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IListenCall：（監聽回調服務接口，主用被心跳監控系統調用）
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using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.ServiceModel;
using
System.Text;
namespace
ProgramMonitor.Core
{
public
interface
IListenCall
{
[OperationContract]
int
Listen(
string
programId);
}
}
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ProgramInfo：（程序信息類，主要用於獲取被監控程序的基本信息）
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using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Text;
using
System.ServiceModel;
using
System.Runtime.Serialization;
namespace
ProgramMonitor.Core
{
[DataContract(Namespace =
"http://www.zuowenjun.cn"
)]
public
class
ProgramInfo
{
public
ProgramInfo()
{
}
[DataMember]
public
string
Id {
get
;
internal
set
; }
[DataMember]
public
string
Name {
get
;
set
; }
[DataMember]
public
string
Version {
get
;
set
; }
[DataMember]
public
string
InstalledLocation {
get
;
set
; }
[DataMember]
public
string
Description {
get
;
set
; }
private
int
runState = -1;
/// <summary>
/// 運行狀態，-1:表示停止，0表示啟動，1表示運行中
/// </summary>
[DataMember]
public
int
RunState
{
get
{
return
runState;
}
set
{
this
.UpdateStateTime = DateTime.Now;
if
(value < 0)
{
runState = -1;
this
.StopTime =
this
.UpdateStateTime;
}
else
if
(value == 0)
{
runState = 0;
this
.StartTime =
this
.UpdateStateTime;
}
else
{
runState = 1;
}
}
}
[DataMember]
public
DateTime UpdateStateTime {
get
;
private
set
; }
[DataMember]
public
DateTime StartTime {
get
;
private
set
; }
[DataMember]
public
DateTime StopTime {
get
;
private
set
; }
}
}
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ListenClient：（監聽客戶端類，實現WCF回調服務接口，主要用於被監控的程序）
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using
System;
using
System.Collections.Generic;
using
System.Diagnostics;
using
System.IO;
using
System.Linq;
using
System.Security.Cryptography;
using
System.ServiceModel;
using
System.ServiceModel.Description;
using
System.Text;
namespace
ProgramMonitor.Core
{
public
class
ListenClient : IListenCall
{
private
static
object
syncObject =
new
object
();
private
static
ListenClient instance =
null
;
private
ProgramInfo programInfo =
null
;
private
string
serviceHostAddr =
null
;
private
int
autoReportRunningInterval = 300;
private
DuplexChannelFactory<IListenService> listenServiceFactory =
null
;
private
IListenService proxyListenService =
null
;
private
System.Timers.Timer reportRunningTimer =
null
;
private
ListenClient(ProgramInfo programInfo,
string
serviceHostAddr =
null
,
int
autoReportRunningInterval = 300)
{
programInfo.Id = CreateProgramId();
this
.programInfo = programInfo;
this
.serviceHostAddr = serviceHostAddr;
if
(autoReportRunningInterval >= 60)
//最低1分鍾的間隔
{
this
.autoReportRunningInterval = autoReportRunningInterval;
}
BuildAutoReportRunningTimer();
}
private
void
BuildAutoReportRunningTimer()
{
reportRunningTimer =
new
System.Timers.Timer(autoReportRunningInterval * 1000);
reportRunningTimer.Elapsed += (s, e) =>
{
ReportRunning();
};
}
private
void
BuildListenClientService()
{
if
(listenServiceFactory ==
null
)
{
if
(
string
.IsNullOrEmpty(serviceHostAddr))
{
serviceHostAddr = System.Configuration.ConfigurationManager.AppSettings[
"ServiceHostAddr"
];
}
InstanceContext instanceContext =
new
InstanceContext(instance);
NetTcpBinding binding =
new
NetTcpBinding();
binding.ReceiveTimeout =
new
TimeSpan(0, 5, 0);
binding.SendTimeout =
new
TimeSpan(0, 5, 0);
Uri baseAddress =
new
Uri(
string
.Format(
"net.tcp://{0}/ListenService"
, serviceHostAddr));
listenServiceFactory =
new
DuplexChannelFactory<IListenService>(instanceContext, binding,
new
EndpointAddress(baseAddress));
}
proxyListenService = listenServiceFactory.CreateChannel();
}
public
static
ListenClient GetInstance(ProgramInfo programInfo,
string
serviceHostAddr =
null
,
int
autoReportRunningInterval = 300)
{
if
(instance ==
null
)
{
lock
(syncObject)
{
if
(instance ==
null
)
{
instance =
new
ListenClient(programInfo, serviceHostAddr, autoReportRunningInterval);
instance.BuildListenClientService();
}
}
}
return
instance;
}
public
void
ReportStart()
{
proxyListenService.Start(programInfo);
reportRunningTimer.Start();
}
public
void
ReportStop()
{
proxyListenService.Stop(programInfo.Id);
reportRunningTimer.Stop();
}
public
void
ReportRunning()
{
try
{
proxyListenService.ReportRunning(programInfo);
}
catch
{
BuildListenClientService();
}
}
int
IListenCall.Listen(
string
programId)
{
if
(programInfo.Id.Equals(programId, StringComparison.OrdinalIgnoreCase))
{
if
(programInfo.RunState >= 0)
{
return
1;
}
}
return
-1;
}
private
string
CreateProgramId()
{
Process currProcess = Process.GetCurrentProcess();
int
procCount = Process.GetProcessesByName(currProcess.ProcessName).Length;
string
currentProgramPath = currProcess.MainModule.FileName;
return
GetMD5HashFromFile(currentProgramPath) +
"_"
+ procCount;
}
private
string
GetMD5HashFromFile(
string
fileName)
{
try
{
byte
[] hashData =
null
;
using
(FileStream fs =
new
FileStream(fileName, System.IO.FileMode.Open, FileAccess.Read))
{
MD5 md5 =
new
MD5CryptoServiceProvider();
hashData = md5.ComputeHash(fs);
fs.Close();
}
StringBuilder sb =
new
StringBuilder();
for
(
int
i = 0; i < hashData.Length; i++)
{
sb.Append(hashData[i].ToString(
"x2"
));
}
return
sb.ToString();
}
catch
(Exception ex)
{
throw
new
Exception(
"GetMD5HashFromFile Error:"
+ ex.Message);
}
}
}
}
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這里特別說一下：CreateProgramId方法，因為心跳監控系統主要是依據ProgramId來識別每個不同的程序，故ProgramId非常重要，而我這里采用的是文件的 MD5值+進程數作為ProgramId，有些人可能要問，為什么要加進程數呢？原因很簡單，因為有些程序是允許開啟多個的實例的，如果不加進程數，那么心跳監控系統就無法識別多個同一個程序到底是哪個。
ProgramMonitor
ListenService：（WCF心跳監控服務接口實現類）
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using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Text;
using
ProgramMonitor.Core;
using
System.ServiceModel;
namespace
ProgramMonitor.Service
{
[ServiceBehavior(ConcurrencyMode = ConcurrencyMode.Reentrant, InstanceContextMode = InstanceContextMode.PerCall)]
public
class
ListenService : IListenService
{
public
void
Start(ProgramInfo programInfo)
{
var
listenCall = OperationContext.Current.GetCallbackChannel<IListenCall>();
Common.SaveProgramStartInfo(programInfo, listenCall);
}
public
void
Stop(
string
programId)
{
Common.SaveProgramStopInfo(programId);
}
public
void
ReportRunning(ProgramInfo programInfo)
{
var
listenCall = OperationContext.Current.GetCallbackChannel<IListenCall>();
Common.SaveProgramRunningInfo(programInfo, listenCall);
}
}
}
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Common:（通用業務邏輯類，主要用於WCF與UI實時溝通與聯動）
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using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Text;
using
ProgramMonitor.Core;
using
System.Collections.Concurrent;
using
System.Timers;
using
System.Threading;
using
Timer = System.Timers.Timer;
using
ProgramMonitor.Service;
using
System.Data.SqlClient;
using
log4net;
namespace
ProgramMonitor
{
public
static
class
Common
{
public
static
ConcurrentDictionary<
string
, ProgramInfo> ProgramInfos =
null
;
public
static
ConcurrentDictionary<
string
, IListenCall> ListenCalls =
null
;
public
static
ConcurrentBag<
string
> ManualStopProgramIds =
null
;
public
static
System.Timers.Timer loadTimer =
null
;
public
static
Timer listenTimer =
null
;
public
static
SynchronizationContext SyncContext =
null
;
public
static
Action<ProgramInfo,
bool
> RefreshListView;
public
static
Action<ProgramInfo,
bool
> RefreshTabControl;
public
static
int
ClearInterval = 5;
public
static
int
ListenInterval = 2;
public
static
bool
Listening =
false
;
public
static
string
DbConnString =
null
;
public
static
string
[] NoticePhoneNos =
null
;
public
static
string
NoticeWxUserIds =
null
;
public
static
ILog Logger = LogManager.GetLogger(
"ProgramMonitor"
);
public
const
string
SqlProviderName =
"System.Data.SqlClient"
;
public
static
void
SaveProgramStartInfo(ProgramInfo programInfo, IListenCall listenCall)
{
programInfo.RunState = 0;
ProgramInfos.AddOrUpdate(programInfo.Id, programInfo, (key, value) => programInfo);
ListenCalls.AddOrUpdate(programInfo.Id, listenCall, (key, value) => listenCall);
RefreshListView(programInfo,
false
);
RefreshTabControl(programInfo,
true
);
WriteLog(
string
.Format(
"程序名：{0}，版本：{1}，已啟動運行"
, programInfo.Name, programInfo.Version),
false
);
}
public
static
void
SaveProgramStopInfo(
string
programId)
{
ProgramInfo programInfo;
if
(ProgramInfos.TryGetValue(programId,
out
programInfo))
{
programInfo.RunState = -1;
RefreshListView(programInfo,
false
);
IListenCall listenCall =
null
;
ListenCalls.TryRemove(programId,
out
listenCall);
RefreshTabControl(programInfo,
true
);
}
WriteLog(
string
.Format(
"程序名：{0}，版本：{1}，已停止運行"
, programInfo.Name, programInfo.Version),
false
);
}
public
static
void
SaveProgramRunningInfo(ProgramInfo programInfo, IListenCall listenCall)
{
if
(!ProgramInfos.ContainsKey(programInfo.Id) || !ListenCalls.ContainsKey(programInfo.Id))
{
SaveProgramStartInfo(programInfo, listenCall);
}
programInfo.RunState = 1;
RefreshTabControl(programInfo,
true
);
WriteLog(
string
.Format(
"程序名：{0}，版本：{1}，正在運行中"
, programInfo.Name, programInfo.Version),
false
);
}
public
static
void
AutoLoadProgramInfos()
{
if
(loadTimer ==
null
)
{
loadTimer =
new
Timer(1 * 60 * 1000);
loadTimer.Elapsed +=
delegate
(
object
sender, ElapsedEventArgs e)
{
var
timer = sender
as
Timer;
try
{
timer.Stop();
foreach
(
var
item
in
ProgramInfos)
{
var
programInfo = item.Value;
RefreshListView(programInfo,
false
);
}
}
finally
{
if
(Listening)
{
timer.Start();
}
}
};
}
else
{
loadTimer.Interval = 1 * 60 * 1000;
}
loadTimer.Start();
}
public
static
void
AutoListenPrograms()
{
if
(listenTimer ==
null
)
{
listenTimer =
new
Timer(ListenInterval * 60 * 1000);
listenTimer.Elapsed +=
delegate
(
object
sender, ElapsedEventArgs e)
{
var
timer = sender
as
Timer;
try
{
timer.Stop();
foreach
(
var
item
in
ListenCalls)
{
bool
needUpdateStatInfo =
false
;
var
listenCall = item.Value;
var
programInfo = ProgramInfos[item.Key];
int
oldRunState = programInfo.RunState;
try
{
programInfo.RunState = listenCall.Listen(programInfo.Id);
}
catch
{
if
(programInfo.RunState != -1)
{
programInfo.RunState = -1;
needUpdateStatInfo =
true
;
}
}
if
(programInfo.RunState == -1 && programInfo.StopTime.AddMinutes(5) < DateTime.Now)
//如果停了5分鍾，則發一次短信
{
SendNoticeSms(programInfo);
SendNoticeWeiXin(programInfo);
programInfo.RunState = -1;
//重新刷新狀態
}
if
(oldRunState != programInfo.RunState)
{
needUpdateStatInfo =
true
;
WriteLog(
string
.Format(
"程序名：{0}，版本：{1}，運行狀態變更為：{2}"
, programInfo.Name, programInfo.Version,programInfo.RunState),
false
);
}
RefreshTabControl(programInfo, needUpdateStatInfo);
}
}
finally
{
if
(Listening)
{
timer.Start();
}
}
};
}
else
{
listenTimer.Interval = ListenInterval * 60 * 1000;
}
listenTimer.Start();
}
public
static
void
SendNoticeSms(ProgramInfo programInfo)
{
if
(NoticePhoneNos ==
null
|| NoticePhoneNos.Length <= 0)
return
;
using
(DataAccess da =
new
DataAccess(Common.DbConnString, Common.SqlProviderName))
{
da.UseTransaction();
foreach
(
string
phoneNo
in
NoticePhoneNos)
{
var
parameters = da.ParameterHelper.AddParameter(
"@Mbno"
, phoneNo)
.AddParameter(
"@Msg"
,
string
.Format(
"程序名：{0}，版本：{1}，安裝路徑：{2}，已停止運行了，請盡快處理！"
,
programInfo.Name, programInfo.Version, programInfo.InstalledLocation))
.AddParameter(
"@SendTime"
, DateTime.Now)
.AddParameter(
"@KndType"
,
"監控異常通知"
)
.ToParameterArray();
da.ExecuteCommand(
"insert into OutBox(Mbno,Msg,SendTime,KndType) values(@Mbno,@Msg,@SendTime,@KndType)"
, paramObjs: parameters);
}
da.Commit();
WriteLog(
string
.Format(
"程序名：{0}，版本：{1}，已停止運行超過5分鍾，成功發送短信通知到：{2}"
,
programInfo.Name, programInfo.Version,
string
.Join(
","
, NoticePhoneNos)),
false
);
}
}
public
static
void
SendNoticeWeiXin(ProgramInfo programInfo)
{
if
(
string
.IsNullOrEmpty(NoticeWxUserIds))
return
;
string
msg =
string
.Format(
"程序名：{0}，版本：{1}，安裝路徑：{2}，已停止運行了，請盡快處理！"
,
programInfo.Name, programInfo.Version, programInfo.InstalledLocation);
var
wx =
new
WeChat();
var
result = wx.SendMessage(NoticeWxUserIds, msg);
if
(result[
"errmsg"
].ToString().Equals(
"ok"
, StringComparison.OrdinalIgnoreCase))
{
WriteLog(
string
.Format(
"程序名：{0}，版本：{1}，已停止運行超過5分鍾，成功發送微信通知到：{2}"
, programInfo.Name, programInfo.Version,NoticeWxUserIds),
false
);
}
}
public
static
void
BuildConnectionString(
string
server,
string
db,
string
uid,
string
pwd)
{
SqlConnectionStringBuilder connStrBuilder =
new
SqlConnectionStringBuilder();
connStrBuilder.DataSource = server;
connStrBuilder.InitialCatalog = db;
connStrBuilder.UserID = uid;
connStrBuilder.Password = pwd;
connStrBuilder.IntegratedSecurity =
false
;
connStrBuilder.ConnectTimeout = 15;
DbConnString = connStrBuilder.ToString();
}
public
static
void
WriteLog(
string
msg,
bool
isError =
false
)
{
if
(isError)
{
Logger.Error(msg);
}
else
{
Logger.Info(msg);
}
}
}
}
|
FrmMain：（心跳監控系統窗體類）
|
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|
using
ProgramMonitor.Core;
using
ProgramMonitor.Service;
using
System;
using
System.Collections.Concurrent;
using
System.Collections.Generic;
using
System.ComponentModel;
using
System.Data;
using
System.Drawing;
using
System.Linq;
using
System.ServiceModel;
using
System.ServiceModel.Description;
using
System.Text;
using
System.Threading;
using
System.Windows.Forms;
namespace
ProgramMonitor
{
public
partial
class
FrmMain : Form
{
private
ServiceHost serviceHost =
null
;
public
FrmMain()
{
InitializeComponent();
tabControl1.SizeMode = TabSizeMode.Fixed;
tabControl1.ItemSize =
new
Size(0, 1);
#if (DEBUG)
btnTestSend.Visible =
true
;
#else
btnTestSend.Visible =
false
;
#endif
Common.SyncContext = SynchronizationContext.Current;
Common.ProgramInfos =
new
ConcurrentDictionary<
string
, ProgramInfo>();
Common.ListenCalls =
new
ConcurrentDictionary<
string
, IListenCall>();
Common.ManualStopProgramIds =
new
ConcurrentBag<
string
>();
Common.RefreshListView = RefreshListView;
Common.RefreshTabControl = RefreshTabControl;
}
#region 自定義方法區域
private
void
RefreshListView(ProgramInfo programInfo,
bool
needUpdateStatInfo)
{
Common.SyncContext.Post(o =>
{
string
listViewItemKey =
string
.Format(
"lvItem_{0}"
, programInfo.Id);
if
(!listView1.Items.ContainsKey(listViewItemKey))
{
var
lstItem = listView1.Items.Add(listViewItemKey, programInfo.Name, 0);
lstItem.Name = listViewItemKey;
lstItem.Tag = programInfo.Id;
lstItem.SubItems.Add(programInfo.Version);
lstItem.SubItems.Add(programInfo.InstalledLocation);
lstItem.ToolTipText = programInfo.Description;
if
(needUpdateStatInfo)
{
UpdateProgramListenStatInfo();
}
}
else
{
if
(!Common.ListenCalls.ContainsKey(programInfo.Id) && programInfo.RunState == -1 && Common.ClearInterval > 0
&& programInfo.StopTime.AddMinutes(Common.ClearInterval) < DateTime.Now)
//當屬於正常關閉的程序在指定時間后從監控列表中移除
{
RemoveListenItem(programInfo.Id);
}
}
},
null
);
}
private
void
RefreshTabControl(ProgramInfo programInfo,
bool
needUpdateStatInfo)
{
Common.SyncContext.Post(o =>
{
string
tabPgName =
string
.Format(
"tabpg_{0}"
, programInfo.Id);
string
msgCtrlName =
string
.Format(
"{0}_MsgText"
, tabPgName);
if
(!tabControl1.TabPages.ContainsKey(tabPgName))
{
RichTextBox rchTextBox =
new
RichTextBox();
rchTextBox.Name = msgCtrlName;
rchTextBox.Dock = DockStyle.Fill;
rchTextBox.ReadOnly =
true
;
AppendTextToRichTextBox(rchTextBox, programInfo);
var
tabPg =
new
TabPage();
tabPg.Name = tabPgName;
tabPg.Controls.Add(rchTextBox);
tabControl1.TabPages.Add(tabPg);
}
else
{
var
tabPg = tabControl1.TabPages[tabPgName];
var
rchTextBox = tabPg.Controls[msgCtrlName]
as
RichTextBox;
AppendTextToRichTextBox(rchTextBox, programInfo);
}
if
(needUpdateStatInfo)
{
UpdateProgramListenStatInfo();
}
},
null
);
}
private
void
UpdateProgramListenStatInfo()
{
int
runCount = Common.ProgramInfos.Count(p => p.Value.RunState >= 0);
labRunCount.Text =
string
.Format(
"{0}個"
, runCount);
labStopCount.Text =
string
.Format(
"{0}個"
, Common.ProgramInfos.Count - runCount);
foreach
(ListViewItem lstItem
in
listView1.Items)
{
string
programId = lstItem.Tag.ToString();
if
(Common.ProgramInfos[programId].RunState == -1)
{
lstItem.ForeColor = Color.Red;
}
else
{
lstItem.ForeColor = Color.Black;
}
}
}
private
void
RemoveListenItem(
string
programInfoId)
{
ProgramInfo programInfo = Common.ProgramInfos[programInfoId];
listView1.Items.RemoveByKey(
string
.Format(
"lvItem_{0}"
, programInfo.Id));
tabControl1.TabPages.RemoveByKey(
string
.Format(
"tabpg_{0}"
, programInfo.Id));
Common.ProgramInfos.TryRemove(programInfo.Id,
out
programInfo);
IListenCall listenCall =
null
;
Common.ListenCalls.TryRemove(programInfoId,
out
listenCall);
UpdateProgramListenStatInfo();
}
private
void
AppendTextToRichTextBox(RichTextBox rchTextBox, Core.ProgramInfo programInfo)
{
Color msgColor = Color.Black;
string
lineMsg =
string
.Format(
"{0:yyyy-MM-dd HH:mm}\t{1}({2})\t{3} \n"
, DateTime.Now, programInfo.Name, programInfo.Version, GetRunStateString(programInfo.RunState,
out
msgColor));
rchTextBox.SelectionColor = msgColor;
rchTextBox.SelectionStart = rchTextBox.Text.Length;
rchTextBox.AppendText(lineMsg);
rchTextBox.SelectionLength = rchTextBox.Text.Length;
if
(rchTextBox.Lines.Length>1000)
{
}
}
private
string
GetRunStateString(
int
runState,
out
Color msgColor)
{
if
(runState < 0)
{
msgColor = Color.Red;
return
"程序已停止運行"
;
}
else
if
(runState == 0)
{
msgColor = Color.Blue;
return
"程序已啟動運行"
;
}
else
{
msgColor = Color.Black;
return
"程序已在運行中"
;
}
}
private
void
StartListenService()
{
if
(serviceHost ==
null
)
{
string
serviceHostAddr = System.Configuration.ConfigurationManager.AppSettings[
"ServiceHostAddr"
];
string
serviceMetaHostAddr = System.Configuration.ConfigurationManager.AppSettings[
"ServiceMetaHostAddr"
];
serviceHost =
new
ServiceHost(
typeof
(ListenService));
NetTcpBinding binding =
new
NetTcpBinding();
binding.ReceiveTimeout =
new
TimeSpan(0, 5, 0);
binding.SendTimeout =
new
TimeSpan(0, 5, 0);
serviceHost.AddServiceEndpoint(
typeof
(IListenService), binding,
string
.Format(
"net.tcp://{0}/ListenService"
, serviceHostAddr));
if
(serviceHost.Description.Behaviors.Find<ServiceMetadataBehavior>() ==
null
)
{
ServiceMetadataBehavior behavior =
new
ServiceMetadataBehavior();
behavior.HttpGetEnabled =
true
;
behavior.HttpGetUrl =
new
Uri(
string
.Format(
"http://{0}/ListenService/metadata"
, serviceMetaHostAddr));
serviceHost.Description.Behaviors.Add(behavior);
}
serviceHost.Opened += (s, arg) =>
{
SetUIStyle(
"S"
);
Common.Listening =
true
;
Common.AutoLoadProgramInfos();
Common.AutoListenPrograms();
};
serviceHost.Closed += (s, arg) =>
{
SetUIStyle(
"C"
);
Common.loadTimer.Stop();
Common.listenTimer.Stop();
Common.Listening =
false
;
};
}
serviceHost.Open();
}
private
void
StopListenService()
{
try
{
if
(serviceHost !=
null
&& serviceHost.State != CommunicationState.Closed)
{
serviceHost.Close();
}
serviceHost =
null
;
}
catch
{ }
}
private
void
SetUIStyle(
string
state)
{
if
(state ==
"S"
)
{
labSericeState.BackColor = Color.Green;
txtRefreshInterval.Enabled =
false
;
txtListenInterval.Enabled =
false
;
btnExec.Tag =
"C"
;
btnExec.Text =
"停止監控"
;
panel1.Enabled =
false
;
panel2.Enabled =
false
;
}
else
{
labSericeState.BackColor = Color.Red;
txtRefreshInterval.Enabled =
true
;
txtListenInterval.Enabled =
true
;
btnExec.Tag =
"S"
;
btnExec.Text =
"開啟監控"
;
panel1.Enabled =
true
;
panel2.Enabled =
true
;
}
}
private
void
InitListViewStyle()
{
ImageList imgList =
new
ImageList();
imgList.ImageSize =
new
Size(32, 32);
imgList.Images.Add(Properties.Resources.monitor);
listView1.SmallImageList = imgList;
listView1.LargeImageList = imgList;
listView1.View = View.Details;
listView1.GridLines =
false
;
listView1.FullRowSelect =
true
;
listView1.Columns.Add(
"程序名稱"
, -2);
listView1.Columns.Add(
"版本"
);
listView1.Columns.Add(
"運行路徑"
);
int
avgWidth = listView1.Width / 3;
}
private
void
InitNoticeSetting()
{
if
(chkSendSms.Checked)
{
bool
dbConnected =
false
;
Common.BuildConnectionString(txtServer.Text, txtDb.Text, txtUID.Text, txtPwd.Text);
using
(
var
da =
new
DataAccess(Common.DbConnString, Common.SqlProviderName))
{
try
{
da.ExecuteScalar<DateTime>(
"select getdate()"
);
dbConnected =
true
;
}
catch
(Exception ex)
{
MessageBox.Show(
"數據庫測試連接失敗，原因："
+ ex.Message);
}
}
if
(dbConnected)
{
if
(txtPhoneNos.Text.Trim().IndexOf(
","
) >= 0)
{
Common.NoticePhoneNos = txtPhoneNos.Text.Trim().Split(
new
[] {
","
}, StringSplitOptions.RemoveEmptyEntries);
}
else
{
Common.NoticePhoneNos =
new
[] { txtPhoneNos.Text.Trim() };
}
}
}
else
{
Common.NoticePhoneNos =
null
;
}
if
(chkSendWx.Checked)
{
Common.NoticeWxUserIds = txtWxUIDs.Text.Trim();
}
else
{
Common.NoticeWxUserIds =
null
;
}
}
private
bool
IsRightClickSelectedItem(Point point)
{
foreach
(ListViewItem item
in
listView1.SelectedItems)
{
if
(item.Bounds.Contains(point))
{
return
true
;
}
}
return
false
;
}
#endregion
private
void
btnExec_Click(
object
sender, EventArgs e)
{
string
state = (btnExec.Tag ??
"S"
).ToString();
if
(state ==
"S"
)
{
InitNoticeSetting();
Common.ClearInterval =
int
.Parse(txtRefreshInterval.Text);
Common.ListenInterval =
int
.Parse(txtListenInterval.Text);
StartListenService();
}
else
{
StopListenService();
}
}
private
void
listView1_SelectedIndexChanged(
object
sender, EventArgs e)
{
if
(listView1.SelectedItems.Count <= 0)
return
;
string
programId = listView1.SelectedItems[0].Tag.ToString();
string
tabPgName =
string
.Format(
"tabpg_{0}"
, programId);
if
(tabControl1.TabPages.ContainsKey(tabPgName))
{
tabControl1.SelectedTab = tabControl1.TabPages[tabPgName];
}
else
{
MessageBox.Show(
"未找到相應的程序監控記錄！"
);
listView1.SelectedItems[0].ForeColor = Color.Red;
}
}
private
void
FrmMain_Load(
object
sender, EventArgs e)
{
InitListViewStyle();
}
private
void
FrmMain_FormClosing(
object
sender, FormClosingEventArgs e)
{
if
(MessageBox.Show(
"您確定要退出嗎？退出后將無法正常監控各程序的運行狀況"
,
"退出提示"
, MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.Cancel)
{
e.Cancel =
true
;
return
;
}
StopListenService();
}
private
void
btnTestSend_Click(
object
sender, EventArgs e)
{
var
wx =
new
WeChat();
var
msg = wx.SendMessage(
"kyezuo"
,
"測試消息，有程序停止運行了，趕緊處理！"
);
MessageBox.Show(msg[
"errmsg"
].ToString());
}
private
void
listView1_MouseUp(
object
sender, MouseEventArgs e)
{
if
(e.Button == MouseButtons.Right && IsRightClickSelectedItem(e.Location))
{
ctxMuPop.Show(listView1, e.Location);
}
}
private
void
removeToolStripMenuItem_Click(
object
sender, EventArgs e)
{
if
(listView1.SelectedItems.Count <= 0)
return
;
string
programId = listView1.SelectedItems[0].Tag.ToString();
if
(Common.ProgramInfos[programId].RunState != -1)
{
MessageBox.Show(
"只有被監控的程序處於已停止狀態的監控項才能移除，除外情況請務必保持正常！"
);
return
;
}
RemoveListenItem(programId);
}
}
}
|
窗體類中主要是用到了幾個更新UI上控件信息的方法以及開啟、關閉WCF服務的方法，很簡單，一看就明白，無需多講。
FrmMain.Designer.cs：（Form窗體設計類，系統自動生成的，再此貼出是便於大家可以直接COPY到自己的代碼中直接用）
被監控的客戶端程序集成WCF監聽客戶端很簡單，只需引用ProgramMonitor.Core，然后實例化ListenClient，最后就可以通過該ListenClient與心跳監控系統進行雙工通訊，在此就不貼出源代碼了。
上述代碼中還有用到兩個類：
DataAccess：數據訪問類，這個我之前的文章有介紹，詳見：DataAccess通用數據庫訪問類，簡單易用，功能強悍
WeChat：微信企業號發送消息類，注意是微信企業號，不是公眾號，這里我也貼出源代碼來，供大家了解：
|
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|
using
Newtonsoft.Json;
using
Newtonsoft.Json.Linq;
using
System;
using
System.Collections.Generic;
using
System.IO;
using
System.Linq;
using
System.Net;
using
System.Text;
using
System.Web;
namespace
ProgramMonitor.Service
{
public
class
WeChat
{
private
readonly
string
_url =
null
;
private
readonly
string
_corpid =
null
;
private
readonly
string
_secret =
null
;
public
WeChat()
{
_url =
"https://qyapi.weixin.qq.com/cgi-bin"
;
_corpid =
"CorpID是企業號的標識，每個企業號擁有一個唯一的CorpID"
;
_secret =
"secret是管理組憑證密鑰，系統管理員在企業號管理后台創建管理組時，企業號后台為該管理組分配一個唯一的secret"
;
}
public
string
GetToken(
string
url_prefix =
"/"
)
{
string
urlParams =
string
.Format(
"corpid={0}&corpsecret={1}"
, HttpUtility.UrlEncodeUnicode(_corpid), HttpUtility.UrlEncodeUnicode(_secret));
string
url = _url + url_prefix +
"gettoken?"
+ urlParams;
string
result = HttpGet(url);
var
content = JObject.Parse(result);
return
content[
"access_token"
].ToString();
}
public
JObject PostData(dynamic data,
string
url_prefix =
"/"
)
{
string
dataStr = JsonConvert.SerializeObject(data);
string
url = _url + url_prefix +
"message/send?access_token="
+ GetToken();
string
result = HttpPost(url, dataStr);
return
JObject.Parse(result);
}
public
JObject SendMessage(
string
touser,
string
message)
{
var
data =
new
{ touser = touser, toparty =
"1"
, msgtype =
"text"
, agentid =
"2"
, text =
new
{ content = message }, safe =
"0"
};
var
jResult = PostData(data);
return
jResult;
}
private
string
HttpPost(
string
Url,
string
postDataStr)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);
request.Method =
"POST"
;
request.ContentType =
"application/x-www-form-urlencoded"
;
byte
[] data = Encoding.UTF8.GetBytes(postDataStr);
request.ContentLength = data.Length;
Stream myRequestStream = request.GetRequestStream();
myRequestStream.Write(data, 0, data.Length);
myRequestStream.Close();
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream myResponseStream = response.GetResponseStream();
StreamReader myStreamReader =
new
StreamReader(myResponseStream, Encoding.UTF8);
string
retString = myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close();
return
retString;
}
public
string
HttpGet(
string
Url,
string
urlParams =
null
)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url + (
string
.IsNullOrEmpty(urlParams) ?
""
:
"?"
) + urlParams);
request.Method =
"GET"
;
request.ContentType =
"text/html;charset=UTF-8"
;
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream myResponseStream = response.GetResponseStream();
StreamReader myStreamReader =
new
StreamReader(myResponseStream, Encoding.UTF8);
string
retString = myStreamReader.ReadToEnd();
myStreamReader.Close();
myResponseStream.Close();
return
retString;
}
}
}
|
具體的關於微信企業號開發文檔，可參見：http://qydev.weixin.qq.com/wiki/index.php
最后的效果如下：
心跳監控程序監控效果：
手機收到異常消息：
（《-這是企業號發出的消息） 
（《-這里短信消息，當然發短信是我公司的平台接口發出的，發短信是需要RMB的，故不建議）
好了本文就到此結束，可能功能相對簡單，還有一些不足，歡迎大家評論交流，謝謝！
分類:
WinForm