我被要求向服务器发送请求以在线注册积分收集系统的交易。我对这个请求-响应程序了解不多。
他们告诉我请求应该是这样的：
request(
p1 - loginInfo:UN|PASS|MP1
p2 - XMLTransactionInfo (below)
p3 - returnPointBalance:1
)
<transaction>
<partnernum>000001</partnernum>
<trxndate>2012-10->12T07:18:27</trxndate>
<cardnum>1234567891234567</cardnum>
<trxnamount>5.4</trxnamount>
<trxnpoints>729</trxnpoints>
<posnum>000-001</posnum>
<contactidnum></contactidnum>
<contactphone>357</contactphone>
<trxnseqnum>12345612345612</trxnseqnum>
</transaction>
响应应该是这样的：
response(
<?xml version="1.0" encoding="UTF-8"?>
<transactionresponse xmlns="C:\path\Sth.ear\Sth.war/xmlschema/TransactionResponse.rng">
<sequencenum>123123121312</sequencenum>
<errorcode>0</errorcode>
<errormessage></errormessage>
<trxnnum>6399575</trxnnum>
<balancebefore>1942</balancebefore>
<balanceafter>1213</balanceafter>
<mpcontrib>729</mpcontrib>
<partnercontrib>0</partnercontrib>
</transactionresponse>
)
他们还告诉我：“您可以使用以下 URL 获取 WSDL：url1...”和“WS 端点是：url2...”
到目前为止，我已经设法做到以下几点：
Dim request As WebRequest = Nothing
'Create a request for the URL.
request =WebRequest.Create("URL1")
'set the credentials.
Dim credentials As NetworkCredential
loginUser = "username"
loginPass = "pass"
credentials = New NetworkCredential(loginUser, loginPass, "MP1")
request.Credentials = credentials
'create the transaction xml
request.ContentType = "text/xml"
Dim transaction As XmlElement
transaction = xml2.CreateElement("transaction")
xml2.AppendChild(transaction)
Dim partnernum As XmlElement
partnernum = xml2.CreateElement("partnernum")
partnernum.InnerText = "00001"
transaction.AppendChild(partnernum)
'and so on until i create the exact same xml as above...
然后我将 XML 文件打印到控制台进行目视检查，然后请求响应
'print to console
xml2.Save(Console.Out)
Dim response As WebResponse = request.GetResponse()
Console.WriteLine(response.ToString())
'write the response to a textbox
responseText.Text = response.Headers.ToString()
文本框中响应的结果是
Content-Language: el-GR
Transfer-Encoding: chunked
Content-Type: text/xml
Date: Thu, 13 Dec 2012 18:52:33
GMT Server: WebSphere Application Server/6.0
首先，我应该使用他们给我的 2 个网址中的哪一个？
其次，我如何创建他们告诉我的请求以获得我想得到的响应？
有没有分步指南？
我正在使用 VB.net，WinForms。感谢您的时间。