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我有以下的网络的服务,完美的,只要它是从客户端脚本访问工作(JavaScript的,jQuery的)Web服务时,从浏览器直接访问给错误
<%@ WebService Language="VB" Class="WebService" %>
Imports System.Web.Script.Services
Imports System.Web.Services
<ScriptService()> _
Public Class WebService
Inherits System.Web.Services.WebService
Public Class Person
Public FirstName As String
Public LastName As String
Public Sub New(ByVal m_FirstName As String, ByVal m_LastName As String)
FirstName = m_FirstName
LastName = m_LastName
End Sub
End Class
<WebMethod()> _
Public Function GetPersons() As List(Of Person)
Dim People As List(Of Person) = New List(Of Person)
People.Add(New Person("firstname_1", "surname_1"))
People.Add(New Person("firstname_2", "surname_2"))
Return People
End Function
End Class
但由于某些原因,它给我的错误,如果我试图直接访问它在浏览器中
http://localhost/webservices/WebService.asmx
http://localhost/webservices/WebService.asmx/GetPersons
看到显示所有操作标准的Web服务服务描述支持
我得到的错误是:
WebService.Person cannot be serialized because it does not have a parameterless constructor.
为什么不加入一个参数的构造函数呢? – olix20
我怀疑我是否会发布这个问题,如果我知道那是什么。 – oshirowanen
VB.NET是如此丑陋.. – algiecas