如何解决Vb.net 将 xml 发送到 Web 服务
我想将 xml 发送到 Web 服务 xml看起来像这样
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Header/>
<soap:Body>
<OTA_HotelRatePlanRQ Version="2.1" PrimaryLangID="en-us" TimeStamp="2001-12-17T09:30:47Z" xmlns="http://www.opentravel.org/OTA/2003/05">
<POS>
<Source>
<RequestorID ID="aa" MessagePassword="bb" Type="cc">
<CompanyName Code="C" CodeContext="dd"/>
</RequestorID>
</Source>
</POS>
</OTA_HotelRatePlanRQ>
</soap:Body>
</soap:Envelope>
我知道我可以手动构建 xml,但是有简单的方法吗? 例如
Web 服务名为 webs_test 所以在 vb.net 我写
Dim trip As New webs_test.OTA_HotelRatePlanRQ
trip.POS.Source.RequestorID.ID = "aa"
trip.POS.Source.RequestorID.MessagePassword = "bb"
trip.POS.Source.RequestorID.Type = "cc"
trip.POS.Source.RequestorID.CompanyName.Code = "C"
trip.POS.Source.RequestorID.CompanyName.CodeContext = "dd"
从这里开始,有没有一种简单的方法来构建 xml 并发送到 Web 服务?
谢谢
解决方法
假设此服务位于 http://someserver.com/Some.svc
并且它导出一个 WSDL 来描述它自己在 http://someserver.com/Some.svc?WSDL
,您右键单击您的解决方案资源管理器引用节点,您选择添加服务引用,然后您粘贴 WSDL URL(或者甚至是非 WSDL URL;尝试在末尾添加 ?WSDL 就足够聪明了)。稍后点击几下并选择命名,您就可以编写如下所示的代码:
Dim x as New SomeServiceNamespace.SomeClient()
x.GetRatePlan("aa","bb","cc","C","dd") 'method name comes from the WSDL
剩下的就交给它了..
顺便说一句,如果服务没有描述自己,并不意味着一切都丢失了;一些 Web 服务提供商关闭了服务本身的 WSDL 生成,但他们愿意向您提供服务将发送的相同 WSDL,作为 XML 文件。在这种情况下,把它放在例如c:\temp
并在 Add Service reference.. 对话框中,将 c:\temp\the_wsdl_filename.xml
放入地址框中
我使用 Xml linq 来做:
Imports System.Xml
Imports System.Xml.Linq
Module Module1
Sub Main()
Dim soap As String = _
"<soap:Envelope xmlns:soap=""http://schemas.xmlsoap.org/soap/envelope/"">" & _
"<soap:Header/>" & _
"<soap:Body>" & _
"<OTA_HotelRatePlanRQ Version=""2.1"" PrimaryLangID=""en-us"" TimeStamp=""2001-12-17T09:30:47Z"" xmlns=""http://www.opentravel.org/OTA/2003/05"">" & _
"<POS>" & _
"<Source>" & _
"<RequestorID ID=""aa"" MessagePassword=""bb"" Type=""cc"">" & _
"<CompanyName Code=""C"" CodeContext=""dd""/>" & _
"</RequestorID>" & _
"</Source>" & _
"</POS>" & _
"</OTA_HotelRatePlanRQ>" & _
"</soap:Body>" & _
"</soap:Envelope>"
Dim envelope As XElement = XElement.Parse(soap)
Dim now As DateTime = DateTime.Now
Dim id As String = "John"
Dim password As String = "apple"
Dim type As String = "123"
Dim company = "XYZ"
Dim codeContext = "STU"
Dim ota As XElement = envelope.Descendants().Where(Function(x) x.Name.LocalName = "OTA_HotelRatePlanRQ").FirstOrDefault()
Dim ns As XNamespace = ota.GetDefaultNamespace()
ota.SetAttributeValue("TimeStamp",now.ToString("D"))
Dim requestorID As XElement = ota.Descendants(ns + "RequestorID").FirstOrDefault()
requestorID.SetAttributeValue("ID",id)
requestorID.SetAttributeValue("MessagePassword",password)
requestorID.SetAttributeValue("Type",type)
Dim companyName As XElement = requestorID.Element(ns + "CompanyName")
companyName.SetAttributeValue("Code",company)
companyName.SetAttributeValue("CodeContext",codeContext)
End Sub
End Module
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