本文整理汇总了VB.NET中System.Net.FileWebRequest.BeginGetResponse方法的典型用法代码示例。如果您正苦于以下问题:VB.NET FileWebRequest.BeginGetResponse方法的具体用法?VB.NET FileWebRequest.BeginGetResponse怎么用?VB.NET FileWebRequest.BeginGetResponse使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Net.FileWebRequest 的用法示例。
在下文中一共展示了FileWebRequest.BeginGetResponse方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。
示例1: RequestDeclare
Public Class RequestDeclare
Public myFileWebRequest As FileWebRequest
Public Sub New()
myFileWebRequest = Nothing
End Sub
End Class
Class FileWebRequest_resbeginend
Public Shared allDone As New ManualResetEvent(False)
' Entry point which delegates to C-style main Private Function.
Public Overloads Shared Sub Main()
Main(GetCommandLineArgs())
End Sub
Overloads Shared Sub Main(args() As String)
If args.Length < 2 Then
Console.WriteLine(ControlChars.Cr + "Please enter the file name as command line parameter:")
Console.WriteLine("Usage:FileWebRequest_resbeginend " + ChrW(60) + "systemname" + ChrW(62) + "/" + ChrW(60) + "sharedfoldername" + ChrW(62) + "/" + ChrW(60) + "filename" + ChrW(62) + ControlChars.Cr + "Example:FileWebRequest_resbeginend shafeeque/shaf/hello.txt")
Else
Try
' Place a webrequest.
Dim myWebRequest As WebRequest = WebRequest.Create(("file://" + args(1)))
' Create an instance of the 'RequestDeclare' and associating the 'myWebRequest' to it.
Dim myRequestDeclare As New RequestDeclare()
myRequestDeclare.myFileWebRequest = CType(myWebRequest, FileWebRequest)
' Begin the Asynchronous request for getting file content using 'BeginGetResponse()' method.
Dim asyncResult As IAsyncResult = CType(myRequestDeclare.myFileWebRequest.BeginGetResponse(AddressOf RespCallback, myRequestDeclare), IAsyncResult)
allDone.WaitOne()
Catch e As ArgumentNullException
Console.WriteLine(("ArgumentNullException is :" + e.Message))
Catch e As UriFormatException
Console.WriteLine(("UriFormatException is :" + e.Message))
End Try
End If
End Sub
Private Shared Sub RespCallback(ar As IAsyncResult)
' State of request is asynchronous.
Dim requestDeclare As RequestDeclare = CType(ar.AsyncState, RequestDeclare)
Dim myFileWebRequest As FileWebRequest = requestDeclare.myFileWebRequest
' End the Asynchronus request by calling the 'EndGetResponse()' method.
Dim myFileWebResponse As FileWebResponse = CType(myFileWebRequest.EndGetResponse(ar), FileWebResponse)
' Reade the response into Stream.
Dim streamReader As New StreamReader(myFileWebResponse.GetResponseStream())
Dim readBuffer(256) As [Char]
Dim count As Integer = streamReader.Read(readBuffer, 0, 256)
Console.WriteLine("The contents of the file are :"+ControlChars.Cr)
While count > 0
Dim str As New [String](readBuffer, 0, count)
Console.WriteLine(str)
count = streamReader.Read(readBuffer, 0, 256)
End While
streamReader.Close()
' Release the response object resources.
myFileWebResponse.Close()
allDone.Set()
Console.WriteLine("File reading is over.")
End Sub
End Class
开发者ID:VB.NET开发者,项目名称:System.Net,代码行数:82,代码来源:FileWebRequest.BeginGetResponse
注:本文中的System.Net.FileWebRequest.BeginGetResponse方法示例整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。 |
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