我正在编写一个必须通过API样式调用(POST请求)与基于PHP / web的后端进行通信的程序。我目前的代码非常慢 - 每个请求需要2-3秒 - 是否有更快的方法或我可以用来加速当前请求方法的东西:
Function PostData(ByRef Data() As PostData, ByVal URL As String)
Dim Requester As HttpWebRequest = HttpWebRequest.Create(URL)
Requester.Method = "post"
'Requester.Proxy = New System.Net.WebProxy("localhost", 1234)
'Requester.
Dim ASCIIEncoding As Encoding = New ASCIIEncoding
Dim DataString As String = "apirequest=true"
For Each DataItem As PostData In Data
DataString = DataString & "&" & DataItem.Key & "=" & DataItem.Value
Next
DataString = Right(DataString, Len(DataString) - 1)
Dim RawData() As Byte = ASCIIEncoding.GetBytes(DataString)
Requester.Method = "POST"
Requester.ContentType = "application/x-www-form-urlencoded"
Requester.ContentLength = RawData.Length
Requester.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6"
Dim NewStream As Stream = Requester.GetRequestStream()
NewStream.Write(RawData, 0, RawData.Length)
NewStream.Close()
Dim ResponseStreamReader As StreamReader = New StreamReader(Requester.GetResponse().GetResponseStream())
Return ResponseStreamReader.ReadToEnd()
End Function
答案 0 :(得分:1)
您应该将响应和StreamReader包装在Using
语句中,以确保它们在您完成后立即处理。
此外,您应该直接写入GetRequestStream
(使用StreamWriter
),而不是手动连接循环中的字符串。
然而,它很慢的真正原因是您的互联网连接和/或服务器端脚本太慢。
让它们更快。
答案 1 :(得分:0)
我记得如果您没有使用代理,请将Proxy属性设置为null。
我仍然同意字符串连接和处理建议,并认为使用WebClient可以轻松实现代码。