在Web服务中接收JSON数组作为参数

Question

我正在使用Visual Basic .NET 3.5中编写的Web服务来接收从其他应用程序发送的JSON数组.

我正在发送一个像这样的JSON字符串:

[{"idRecoleccion":1,"PIN":"553648138"},{"idRecoleccion":2,"PIN":"553648138"}]

我在Visual Basic .NET中收到的代码如下:

<WebMethod()> _
Public Function ConfirmaRecol(ByVal ArrayConfirma() As cConfirmaRecoleccion) As Boolean  
     For X = 0 To ArrayConfirma.Length -1
              ' Usage example
              ArrayConfirma(X).PIN
              ArrayConfirma(X).idRecoleccion
         End If
    Next
End Function

我正在用这种方式定义类cConfirmaRecolecciones:

Public Class cConfirmaRecoleccion
Dim p_idRecoleccion As Integer
Dim p_PIN As String

Public Property idRecoleccion() As Integer
  Get
      Return p_idRecoleccion
  End Get
  Set(ByVal value As Integer)
      p_idRecoleccion = value
  End Set
End Property

Public Property PIN() As String
  Get
      Return p_PIN
  End Get
  Set(ByVal value As String)
      p_PIN = value
  End Set
End Property
End Class

我只是想能够使用由JSON发送的1个整数和1个字符串的数组,这就是我试图以他的方式使用它的原因.

几个重要的事情要知道:

• 我已经能够使用具有更简单参数的方法的Web服务,因此我必须使用Web服务的配置是正确的.

这是我通过服务器得到的错误:

{"Message":"Type \u0027System.Collections.Generic.IDictionary`2[[System.String, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089],[System.Object, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]\u0027 is not supported for deserialization of an array.","StackTrace":"   at System.Web.Script.Serialization.ObjectConverter.ConvertListToObject(IList list, Type type, JavaScriptSerializer serializer, Boolean throwOnError, IList& convertedList)\r\n   at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeInternal(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)\r\n   at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToTypeMain(Object o, Type type, JavaScriptSerializer serializer, Boolean throwOnError, Object& convertedObject)\r\n   at System.Web.Script.Serialization.ObjectConverter.ConvertObjectToType(Object o, Type type, JavaScriptSerializer serializer)\r\n   at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit)\r\n   at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input)\r\n   at System.Web.Script.Services.RestHandler.GetRawParamsFromPostRequest(HttpContext context, JavaScriptSerializer serializer)\r\n   at System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData methodData, HttpContext context)\r\n   at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.InvalidOperationException"}

对于我如何在Visual Basic .NET中接收自定义对象数组,您是否有任何其他建议？

任何帮助将非常感谢!

Answer 1

我找到了解决方案,这是正确的方法:

{"ArrayConfirma": [{"idRecoleccion":1,"PIN":"553648138"},{"idRecoleccion":2,"PIN":"553648138"}]}

我必须指定一个数组,其中包含Web服务方法正在接收的参数的名称.