用wmi实现iis智能重启
2020-10-03 17:18:09
供稿：网友
公司的web服务器老是由于dllhost.exe 的内存无法释放而当掉自己,导致asp页面不能正常访问，最可气的是这种情况每每发生在我休假的时候，不得已被拉回来重启一下iis，为了使自己的五一长假能安稳些，写了个iis的自动重启程序，我见网上类似的程序，都是定时重启，我理想的状况是不要过于频繁启动，只在dllhost.exe这个进程当掉的时候，再重启，于是有了下面这段代码，原理是监视应用程序日志，当出现事件id是5的错误时（无法为asp程序提供足够内存），重启iis,呵呵。
strFullName = Wscript.FullName
strWshHost = Right(strFullName, 11)
Wscript.Echo "Default script host: " & strWshHost
If strWshHost = "Wscript.exe" Then
Set objShell = CreateObject("Wscript.Shell")
objShell.Run _
"%comspec% /k ""cscript //h:cscript&&cscript fu.vbs""", _
MAXIMIZE_WINDOW
If Err.Number <> 0 Then
Wscript.Echo "Error 0x" & hex(Err.Number) & " occurred. " & _
Err.Description & ". " & VbCrLf & _
"Could not temporarily change the default script host to Cscript."
Err.Clear
Wscript.Quit
End If
Wscript.Quit
End If
'----上面这段代码是强制到cscript命令行，一般要在cmd命令行下输入cscript *.vbs,如果直接执行vbs会用wscript打开，这样只会弹个对话框，我不喜欢，有不想每次都cscript，所以要写点额外的代码，双击后会调用一个wscript执行csript，然后再消灭自己，幸好微软的网站上提供了这个代码------------------------------------
strComputer = "."
Set objWMIService = GetObject("winmgmts:" _
& "{impersonationLevel= impersonate, (Security)}!/" & strComputer & "ootcimv2")
Set colMonitoredEvents = objWMIService.ExecNotificationQuery _
("Select * from __instancecreationevent where TargetInstance isa'Win32_NTLogEvent' and TargetInstance.EventCode = '4' ")
Wscript.Echo "开始监视iis于 "&now
Do
Set objLatestEvent = colMonitoredEvents.NextEvent
Wscript.Echo "重新启动iis "&now
Set objShell = CreateObject("Wscript.Shell")
objShell.Run "%COMSPEC% /c IISRESET.EXE",,1
'------核心程序，呵呵，短吧，wmi万岁
whichfile=("iisresetlog.htm")
set fso=createobject("scripting.FileSystemObject")
if Not fso.FileExists(whichfile) then
iomode=2 : create=true
'Set MyFile = fso.CreateTextFile(whichfile,True)
else
iomode=8 : create=false
'Set MyFile = fso.CreateTextFile(whichfile)
end if
set MyFile = fso.OpenTextFile(whichfile,iomode,create)
'MyFile.writeLine("事件发生于 "&now&" 重启iis成功"&vbctrf)
if create=true then
MyFile.WriteLine ""
MyFile.WriteLine ""
MyFile.WriteLine ""
MyFile.WriteLine ""
MyFile.WriteLine ""
MyFile.WriteLine "
iisreset Report
" & vbCrLf
end if
MyFile.WriteLine ""
MyFile.WriteLine " "
MyFile.WriteLine _
" iis重启时间: " &now& " "
MyFile.WriteLine " 是否成功: 是 "
MyFile.WriteLine "
"
MyFile.WriteLine " "
MyFile.Close
set fso=nothing
Loop
'-----用fso记录iis 重启日志。
