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私はVB.NETを初めて使い、JSONに2つの変数をシリアル化してデータをWebサーバーにPOSTする簡単なプログラムに取り組んでいます。データはPythonサーバーによって受信されていますが、データを逆シリアル化しようとするとエラーが発生しています。VB.NETでシリアル化されたJSONがWebサーバーによって認識されない
の入力は、以下のとおりです。当社のサーバーがエラーを与え、次のログを持ってい
{
"tester_id": 2,
"operation": "P"
}
：のように、これは見えシリアライズさ
tester_id = 2
operation = "P"
。
[Sat Aug 19 13:46:53.485257 2017] [:error] [pid 17352] <QueryDict: {u'{\\r\\n "tester_id": 2,\\r\\n "operation": "P"\\r\\n}': [u'']}>
これは、のキー受信していることを示唆している：の値で
{u'{\\r\\n "tester_id": 2,\\r\\n "operation": "P"\\r\\n}
を：
[u'']
これは正しくありませんし、それがなぜ私は理解していませんこのように受け取られると、どんな助けも大歓迎です！ VB.NETコードについては以下を参照してください。
クラス：
Public Class JSON_get_sensor_id_POST
Public Property tester_id() As Integer
Get
Return m_tester_id
End Get
Set(ByVal value As Integer)
m_tester_id = value
End Set
End Property
Private m_tester_id As Integer
Public Property operation() As String
Get
Return m_operation
End Get
Set(ByVal value As String)
m_operation = value
End Set
End Property
Private m_operation As String
End Class
コール機能：
Dim set_tester_id As Integer = 1
Dim set_operation As String = "P"
Dim manuf_url As String = "https://XYZ...."
Dim JSON_to_send As New JSON_get_sensor_id_POST
JSON_to_send.tester_id = set_tester_id
JSON_to_send.operation = set_operation
Dim postData = JsonConvert.SerializeObject(JSON_to_send, Formatting.Indented)
Dim return_object = POST_to_Server(manuf_url, postData)
アップロード機能：
Private Function POST_to_Server(ByVal post_url As String, ByVal JSON_to_post As Object)
Dim user_login As String = "[email protected]"
Dim user_pass As String = "blah"
Dim myCache As New CredentialCache()
myCache.Add(New Uri(post_url), "Basic", New NetworkCredential(user_login, user_pass))
' Create a request using a URL that can receive a post.
Dim request As WebRequest = WebRequest.Create(post_url)
' Set the Method property of the request to POST.
request.Credentials = myCache
request.Method = "POST"
request.ContentType = "application/json"
' Create POST data and convert it to a byte array.
Dim byteArray As Byte() = Encoding.Default.GetBytes(JSON_to_post)
' Set the ContentLength property of the WebRequest.
request.ContentLength = byteArray.Length
' Get the request stream.
Dim dataStream As Stream = request.GetRequestStream()
' Write the data to the request stream.
dataStream.Write(byteArray, 0, byteArray.Length)
' Close the Stream object.
dataStream.Close()
' Get the response.
Dim response As WebResponse = request.GetResponse()
' Display the status.
Console.WriteLine(CType(response, HttpWebResponse).StatusDescription)
' Get the stream containing content returned by the server.
dataStream = response.GetResponseStream()
' Open the stream using a StreamReader for easy access.
Dim reader As New StreamReader(dataStream)
' Read the content.
Dim responseFromServer As String = reader.ReadToEnd()
' Display the content.
DebugMessage(responseFromServer)
' Clean up the streams.
reader.Close()
dataStream.Close()
response.Close()
Dim myObject = JsonConvert.DeserializeObject(Of JSON_sensor_id_request_return)(responseFromServer)
Return myObject
End Function