我需要创建这个xml:
<soapenv:Envelope
xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<soapenv:Header>
<wsse:Security xmlns:wsse="http://schemas.xmlsoap.org/ws/2002/04/secext">
<wsse:UsernameToken>
<wsse:Username>user</wsse:Username>
<wsse:Password>password</wsse:Password>
</wsse:UsernameToken>
</wsse:Security>
</soapenv:Header>
<soapenv:Body>
<vb:getAirportInfo xmlns:vb="http://www.example.com/schema/2005/02/booking.xsd">
<airport>BNE</airport>
<airport>PPP</airport>
<airport>MEL</airport>
</vb:getAirportInfo>
</soapenv:Body>
</soapenv:Envelope>
我是使用 SoapClients 的新手,需要一些帮助。我该怎么做?