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我的應用程序當前發送GET httpwberequests並在讀取每個請求的響應流之後分析內容,並且一遍又一遍地重複此過程。據我所知,我需要實現一個連續的http流,它使用相同的GET請求,但連接保持打開狀態。我將如何更改現有代碼來執行此操作?連續的http流
Dim responseReader As StreamReader = Nothing
Dim Reader As StreamReader = Nothing
Dim responseData As String = ""
Dim webresponse As HttpWebResponse = Nothing
Dim responseStream As Stream = Nothing
Dim returnContent As String = Nothing
Dim cdata As Integer = 0
webRequest = TryCast(System.Net.WebRequest.Create(url), HttpWebRequest)
Try
webresponse = DirectCast(webRequest.GetResponse(), HttpWebResponse)
responseStream = webresponse.GetResponseStream
If webresponse.ContentEncoding.ToLower().Contains("gzip") Then
responseStream = New GZipStream(responseStream, CompressionMode.Decompress)
ElseIf webresponse.ContentEncoding.ToLower().Contains("deflate") Then
responseStream = New DeflateStream(responseStream, CompressionMode.Decompress)
End If
Reader = New StreamReader(responseStream, Encoding.Default)
responseData = Reader.ReadToEnd()
Catch
Throw
Finally
webRequest.GetResponse().GetResponseStream().Close()
Reader.close()
End Try
Return responseData
流式HTTP實現允許通過單個持久HTTp請求實時化數據。它訪問一個數據源,繼續發送該響應的活動。我需要從響應中讀取數據,處理它,然後繼續讀取響應並繼續此過程,直到連接關閉。 這是否會像一個異步請求呢?
http的設計不是連續的。它旨在發送和接收(相對)短的消息。 – David 2010-10-25 19:25:34