我正在使用同事的代码尝试在控制台应用程序中重新创建他的REST Web服务。我对Web服务和VB都很陌生，所以对我来说这很困难。它会在他的工作正常，但我不断收到内部服务器错误（500）。我已经看了这个，我发现一些建议正在改变“POST”到“GET”，但我收到了“无法获得这个动词类型的内容体”。我见过关于这样的事情的论坛不能在另一个人的机器上工作。我的同事和我一遍又一遍地尝试过，但得到了相同的结果。
这是控制台应用
Imports System
Imports System.Collections.Generic
Imports System.IO
Imports System.Linq
Imports System.Net
Imports System.Reflection
Imports System.Text
Imports System.Threading.Tasks
Imports System.Web
Imports System.Web.UI
Imports System.Xml
Module RestConsoleClient
Private req As HttpWebRequest = Nothing
Private res As HttpWebResponse = Nothing
Private responseText As String = ""
Sub Main(args As String())
Dim url As String = ""
Try
If args.Count < 1 OrElse String.IsNullOrEmpty(args(0)) Then
Console.WriteLine("Endpoint Address is required as commandline argument;" _
& vbCrLf & "Copy/Paste one of the endpoint addresses from My.Settings into the Debug commandline arguments section" _
& vbCrLf & vbCrLf & "Press ENTER to start over...")
Console.ReadKey()
Return
Else
url = args(0)
End If
req = CType(WebRequest.Create(url), HttpWebRequest)
req.Method = "POST"
'** The conditions below allowed for generic raw data to be input as text vs. processing input data as a json object.
'** These conditions became redundant with the addition of config for WebContentTypeMapper and corresponding class to accept
'** a post declared with application/json ContentType as generic raw data, and then SUBSEQUENTLY de/serialize the json data as necessary
'If url.Contains("streamweaver") Then
' req.ContentType = "text"
'ElseIf url.Contains("auth") Then
' req.ContentType = "application/json" '; charset=utf-8"
'Else
' 'No other options are yet determined
'End If
req.Timeout = 30000
Dim sJson As String = "{""Name"":""Ashu"",""Age"":""29"",""Exp"":""7 Years"",""Technology"":"".NET""}"
Dim postBytes = Encoding.UTF8.GetBytes(sJson)
req.ContentLength = postBytes.Length
Dim requestStream As Stream = req.GetRequestStream()
requestStream.Write(postBytes, 0, postBytes.Length)
res = CType(req.GetResponse(), HttpWebResponse)
' I retained the basics for response reception even though it was not integral to this test
Dim responseStream As Stream = res.GetResponseStream()
Dim streamReader = New StreamReader(responseStream)
responseText = streamReader.ReadToEnd()
Console.WriteLine("HTTP Response: " & res.StatusCode & " - " & res.StatusDescription.Trim)
Console.WriteLine("[ Response Data: " & responseText.Trim & " ]")
Console.ReadKey()
Catch ex As Exception
Console.WriteLine(ex.Message)
Console.ReadKey()
End Try
End Sub
End Module
这是界面
Imports System.IO
Imports System.ServiceModel
Imports System.ServiceModel.Web
<ServiceContract> _
Public Interface IRestServiceImpl
'<OperationContract> _
'<WebInvoke(Method:="GET", ResponseFormat:=WebMessageFormat.Xml, BodyStyle:=WebMessageBodyStyle.Wrapped, UriTemplate:="xml/{id}")> _
'Function XMLData(id As String) As String
'<OperationContract> _
'<WebInvoke(Method:="GET", ResponseFormat:=WebMessageFormat.Json, BodyStyle:=WebMessageBodyStyle.Wrapped, UriTemplate:="json/{id}")> _
'Function JSONData(id As String) As String
<OperationContract> _
<WebInvoke(Method:="POST", ResponseFormat:=WebMessageFormat.Json, RequestFormat:=WebMessageFormat.Json, BodyStyle:=WebMessageBodyStyle.Bare, UriTemplate:="auth")> _
Function Auth(rData As Stream) As ResponseData
<OperationContract> _
<WebInvoke(Method:="POST", ResponseFormat:=WebMessageFormat.Json, RequestFormat:=WebMessageFormat.Json, BodyStyle:=WebMessageBodyStyle.Bare, UriTemplate:="streamweaver")> _
Function StreamWeaver(sData As Stream) As String
End Interface
这是班级
Imports System
Imports System.IO
Imports System.Reflection
Imports System.Security.AccessControl
Imports System.Text
Imports Newtonsoft.Json
Public Class RestServiceImpl
Implements IRestServiceImpl
Private filePathOnServer As String = My.Settings.OutputFolder
'Public Function XMLData(id As String) As String Implements IRestServiceImpl.XMLData
' Return "You requested product " & id
'End Function
'Public Function JSONData(id As String) As String Implements IRestServiceImpl.JSONData
' Return "You requested product " & id
'End Function
Public Function Auth(request As Stream) As ResponseData Implements IRestServiceImpl.Auth
Dim streamReader = New StreamReader(request)
Dim requestText As String = streamReader.ReadToEnd()
Dim rData As RequestData = JsonConvert.DeserializeObject(Of RequestData)(requestText)
Dim response = New ResponseData() With { _
.Name = rData.Name, _
.Age = rData.Age, _
.Exp = rData.Exp, _
.Technology = rData.Technology _
}
Dim fileOutput As String = "As of " & DateTime.Now & ", " _
& response.Name.Trim & " is a person who is " _
& response.Age.Trim & " years old, having " _
& response.Exp.Trim & " of experience with " _
& response.Technology.Trim & " technology."
Console.SetError(New StreamWriter("C:\Users\apearson\Documents\Eureka.txt"))
Console.[Error].WriteLine(fileOutput)
Console.[Error].Close()
Dim ctx As WebOperationContext = WebOperationContext.Current
If rData IsNot Nothing Then
ctx.OutgoingResponse.StatusCode = Net.HttpStatusCode.Accepted
Else
ctx.OutgoingResponse.StatusCode = Net.HttpStatusCode.NotAcceptable
End If
Return response
End Function
Public Function StreamWeaver(reqData As Stream) As String Implements IRestServiceImpl.StreamWeaver
StreamWeaver = Nothing
Dim ctx As WebOperationContext = WebOperationContext.Current
If reqData IsNot Nothing Then
ctx.OutgoingResponse.StatusCode = Net.HttpStatusCode.Accepted
Else
ctx.OutgoingResponse.StatusCode = Net.HttpStatusCode.NotAcceptable
End If
Dim streamReader As StreamReader = New StreamReader(reqData)
StreamWeaver = streamReader.ReadToEnd()
Console.SetError(New StreamWriter(filePathOnServer.Trim & "\RestServiceJSONRaw.txt"))
Console.[Error].WriteLine(DateTime.Now & ": " & vbCrLf & StreamWeaver.Trim)
Console.[Error].Close()
Return StreamWeaver
End Function
End Class
如果还有其他信息，请告诉我。再次，这对我来说是一种新的东西。