无论windows服务执行什么样的处理,创建与安装服务的步骤都十分相似.visual studio提供了windows services项目类型,利用它可以迅速创建windows服务,一下介绍简单的步骤:1)新建项目,在new project对话框中,选择windows服务图标,在对话框name字段输入服务名称,确定.visual studio将显示服务的设计视图.2)在服务属性里面进行设置:servicebase类的属性如下: a.autolog 获得或设置指定服务是否在时间日志中自动报告start,stop,pause和contunue操作的布尔值 b.canhandlepowerevent 获得或设置指定服务是否可以对应于电源状态变化的布尔值,假如服务提供了onpowreevent方法,该属性应设置为true, c.canstop 获得或设置服务是否可以停止的布尔值,假如提供了onstop方法,则设置为true d.servicename 获得或设置使系统识别服务的名称编写你的服务信息,例如:Imports System.ServiceProcess
Imports System.Threading
Imports System.Data.SqlClientPublic Class Service1
Inherits System.ServiceProcess.ServiceBase
Private Shared bstop As Boolean
Private mythread As Thread
#Region " 组件设计器生成的代码 " '组件设计器所必需的
Private components As System.ComponentModel.IContainer '注重: 以下过程是组件设计器所必需的
' 可以使用组件设计器修改此过程。
' 不要使用代码编辑器修改它。
Private Sub startserver()
bstop = False
Dim OrderForm, ddh, matnrh As String
Dim MyLocalDataReader As SqlDataReader
Dim MyprdDataReader As SqlDataReader
Dim mykc As SqlDataReader
Dim kcsl, prdsl, tempsl As Long
Dim flag As Boolean = False
Dim mat As String
Dim vrm As Long
While Not bstop
Try
SqlCMDtemp.CommandText = "delete from tb_ty_cctemp"
SqlCMDtemp.Connection = SqlConnection_local
SqlCMDtemp.ExecuteNonQuery()
If SqlCMDtemp.ExecuteNonQuery() = 0 Then
mythread.Sleep(180000)
End If
End While
mythread.Sleep(180000)
Catch ex As Exception
bstop = True
End Try
End While
End Sub
Private Sub stopserver()
Dim i As Integer = 0
bstop = True
Try
SqlConnection_local.Close()
SCMlocal.CommandText = "insert into MyServiceLog(vc_status,dt_created) values('服务关闭',getdate())"
SqlConnection_local.Open()
SCMlocal.Connection = SqlConnection_local
i = SCMlocal.ExecuteNonQuery
Catch ex As Exception
bstop = True
End Try
End Sub
Protected Overrides Sub OnStart(ByVal args() As String)
' 在此处添加启动服务的代码。此方法应设置具体的操作
' 以便服务可以执行它的工作。
Dim i As Integer
Try
SqlConnection_local.Close()
SCMlocal.CommandText = ""
SCMlocal.CommandText = "insert into MyServiceLog(vc_status,dt_created) values('服务启动',getdate())"
SqlConnection_local.Open()
SCMlocal.Connection = SqlConnection_local
i = SCMlocal.ExecuteNonQuery
Catch ex As Exception
bstop = True
End Try
mythread = New Thread(AddressOf startserver)
mythread.Start()
End Sub
Protected Overrides Sub OnPause()
mythread.Suspend()
End Sub
Protected Overrides Sub OnContinue()
mythread.Resume()
End Sub
Protected Overrides Sub OnStop()
' 在此处添加代码以执行停止服务所需的关闭操作。
Me.stopserver()
End SubEnd Class假如需要把服务时间写入windows事件日志,以下的代码片断使用eventlog对象把一个项放入application日志中:dim log as new eventlog("application")log.source="program name"log.writeentry("message to place into the event log")log.close添加安装在设计视图右击,选择添加安装程序并进行相应的设置使用installutil程序进行安装
