使用RCurl CurlPerform访问Web服务:获取HTTP 500错误
问题描述:
我正在尝试使用使用RCurl包的web服务。使用RCurl CurlPerform访问Web服务:获取HTTP 500错误
此WebService“https://ngcsi.contigohosting.com/Entrader_Dev/wcfservices/TradingService.svc”有很多get方法只能由
认证进行访问,因此,我通过在头中的用户名和密码。
h=basicTextGatherer()
headerFields =
c(c(Accept="text/xml", Accept="multipart/*",
'Content-Type' = "text/xml; charset=utf-8"),
SOAPAction = "https://ngcsi.contigohosting.com/Entrader_Dev/wcfservices/TradingService.svc?wsdl")
body = '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:con="http://entrader.contigoenergy.com/Contigo.Entrader.Service">\
<soapenv:Header>\
<wsse:Security soapenv:mustUnderstand="1"\
xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">\
<wsse:UsernameToken wsu:Id="UsernameToken-37"\
xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">\
<wsse:Username>Username</wsse:Username>\
<wsse:Password
Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">Password</wsse:Password>\
</wsse:UsernameToken>\
</wsse:Security>\
</soapenv:Header>\
<soapenv:Body>\
</soapenv:Body>\
</soapenv:Envelope>\n'
curlPerform(url = "https://ngcsi.contigohosting.com/Entrader_Dev/wcfservices/TradingService.svc",
httpheader = headerFields,
postfields = body,
writefunction = h$update,
verbose=TRUE
)
body=h$value()
我得到一个HTTP/1.1 500内部服务器错误在执行上面和下面的正文内容
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/" xmlns:u="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"><s:Header><o:Security s:mustUnderstand="1" xmlns:o="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"><u:Timestamp u:Id="_0"><u:Created>2017-07-25T15:14:00.856Z</u:Created><u:Expires>2017-07-25T15:19:00.856Z</u:Expires></u:Timestamp></o:Security></s:Header><s:Body><s:Fault><faultcode xmlns:a="http://schemas.microsoft.com/ws/2005/05/addressing/none">a:ActionNotSupported</faultcode><faultstring xml:lang="en-GB">The message with Action 'https://ngcsi.contigohosting.com/Entrader_Dev/wcfservices/TradingService.svc?wsdl' cannot be processed at the receiver, due to a ContractFilter mismatch at the EndpointDispatcher. This may be because of either a contract mismatch (mismatched Actions between sender and receiver) or a binding/security mismatch between the sender and the receiver. Check that sender and receiver have the same contract and the same binding (including security requirements, e.g. Message, Transport, None).</faultstring></s:Fault></s:Body></s:Envelope>
任何帮助深表感谢。谢谢。
答
SOAPAction应该有一个方法,在这种情况下,根据上面使用的wsdl可以是以下任何一种。
http://entrader.contigoenergy.com/Contigo.Entrader.Service/TradingService/GetTrade
http://entrader.contigoenergy.com/Contigo.Entrader.Service/TradingService/GetByFilterTrade
因此,新的代码看起来应该像下面
h=basicTextGatherer()
headerFields =
c(c(Accept="text/xml", Accept="multipart/*",
'Content-Type' = "text/xml; charset=utf-8"),
SOAPAction = "http://entrader.contigoenergy.com/Contigo.Entrader.Service/TradingService/GetTrade")
body = '<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:con="http://entrader.contigoenergy.com/Contigo.Entrader.Service">\
<soapenv:Header>\
<wsse:Security soapenv:mustUnderstand="1"\
xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">\
<wsse:UsernameToken wsu:Id="UsernameToken-37"\
xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">\
<wsse:Username>Username</wsse:Username>\
<wsse:Password
Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">Password</wsse:Password>\
</wsse:UsernameToken>\
</wsse:Security>\
</soapenv:Header>\
<soapenv:Body>\
</soapenv:Body>\
</soapenv:Envelope>\n'
curlPerform(url = "https://ngcsi.contigohosting.com/Entrader_Dev/wcfservices/TradingService.svc",
httpheader = headerFields,
postfields = body,
writefunction = h$update,
verbose=TRUE
)
body=h$value()
上面的代码工作,我能够得到从WebService适当的反应,虽然我没有提到什么在所述示例的身体中。