Question

我尝试使用其他帖子的建议，但仍然没有解决方案。发送POST请求时，有时它会开始冻结并停止。我按如下方式设置了我的代码，现在基本上如果我无法弄清楚为什么它会冻结，那么它需要超时，处理异常并重启函数。

For i As Integer = 0 To searchItems.Count - 1
If uri.Scheme = uri.UriSchemeHttps Then
                        Dim request As HttpWebRequest = HttpWebRequest.Create(url)
                        request.Method = "POST"
                        request.ContentLength = data.Length
                        request.ContentType = "application/xml; charset=utf-8"
                        request.Timeout = 20000
                        Dim writer As New StreamWriter(request.GetRequestStream)

                        Dim postBytes As Byte() = System.Text.Encoding.UTF8.GetBytes(data)
                        writer.Write(postBytes)
                        ***Using oResponse As HttpWebResponse = request.GetResponse()*** ' this is where it freezes
                            Dim reader As New StreamReader(oResponse.GetResponseStream())
                            responseData = reader.ReadToEnd()
                            reader.Dispose()
                            oResponse.Close()
                        End Using
                        request.Abort()

                        writer.Close()
                    End If

                End If
            Next

    Catch e As WebException
        If e.Status = WebExceptionStatus.ProtocolError Then
         ....

有人知道这是编码错误还是别的什么？

好的弄明白为什么它挂起......我正在写请求并且我得到错误无法关闭流，因为即使我设置了内容的长度它也期望更多的字节

Answer 1

无法从此处给出的信息中判断，但如果指定的网址位于与运行此代码的位置不同的域中，则无法使用。

请参阅MSDN - Do a find on cross-domain

httpwebresponse = request.getresponse冻结

1 个答案: