Ruby Savon 2 gem：无法指定 XML 子元素和子子元素以向 SOAP API Webservice 发出有效请求

Question

已经进行了大量的谷歌搜索并查看了 Savon 2 文档，但我认为我没有在我的 ruby​​ 代码中正确指定 XML 子元素和子子元素，我需要对这个 SOAP 网络服务运行成功的请求.

在 main2.rb 中，我尝试使用方括号语法将文档从 BookReservationRequest 到 Booker 再到 UserWithoutALogin。 （这种方括号方法在响应方面的另一个示例中起作用）。不知何故，我没有在 Ruby 中正确指定这些，因为当我在 SOAP UI 中删除这些标签时，我在下面得到完全相同的错误消息。 （注意，我对 Ruby 还是很陌生！）

完整的错误跟踪：

ruby main2.rb
/Users/dan14/.rbenv/versions/2.1.4/lib/ruby/gems/2.1.0/gems/savon-2.11.1/lib/savon/response.rb:85:in `raise_soap_and_http_errors!': (soap:Server) System.Web.Services.Protocols.SoapException: Server was unable to process request. ---> System.NullReferenceException: Object reference not set to an instance of an object. (Savon::SOAPFault)
   at Services.Internal.Helpers.CustomerHelper.GetCustomerIdFromGuestOrBookerType(Nullable`1 partnerServiceId, GuestOrBookerType guestOrBookerType) in c:\TeamCity\LB-QA-04\work\e2ec20c745b940f9\Source\Services\Internal\Helpers\CustomerHelper.cs:line 64
   at Services.Internal.Service.BookReservation(BookReservationRequest bookReservationRequest) in c:\TeamCity\LB-QA-04\work\e2ec20c745b940f9\Source\Services\Internal\Service.asmx.cs:line 289
   --- End of inner exception stack trace ---
    from /Users/dan14/.rbenv/versions/2.1.4/lib/ruby/gems/2.1.0/gems/savon-2.11.1/lib/savon/response.rb:14:in `initialize'
    from /Users/dan14/.rbenv/versions/2.1.4/lib/ruby/gems/2.1.0/gems/savon-2.11.1/lib/savon/operation.rb:72:in `new'
    from /Users/dan14/.rbenv/versions/2.1.4/lib/ruby/gems/2.1.0/gems/savon-2.11.1/lib/savon/operation.rb:72:in `create_response'
    from /Users/dan14/.rbenv/versions/2.1.4/lib/ruby/gems/2.1.0/gems/savon-2.11.1/lib/savon/operation.rb:58:in `call'
    from /Users/dan14/.rbenv/versions/2.1.4/lib/ruby/gems/2.1.0/gems/savon-2.11.1/lib/savon/client.rb:36:in `call'
    from main2.rb:11:in `core_info'
    from main2.rb:23:in `<main>'

Ruby 代码（main2.rb）：

require 'savon'

class BookReservation

  def client
    client = Savon.client(wsdl: "http://some-example-soap-wsdl-link", follow_redirects: :follow_redirects)
  end

  def core_info(partner_code, restaurant_location_id, session_id, dining_date_and_time, size)
    message = { 'PartnerCode' => partner_code, 'RestaurantLocationId' => restaurant_location_id, 'SessionId' => session_id, 'DiningDateAndTime' => dining_date_and_time, 'Size' => size }
    response = client.call(:book_reservation, message: message)
    response.hash[:book_reservation_response]
  end

  def booker_info(first_name, last_name, email, guest_accepts_email_marketing)
    message = { 'FirstName' => first_name, 'LastName' => last_name, 'EMail' => email, 'GuestAcceptsEmailMarketingFromPartner' => guest_accepts_email_marketing }
    response = client.call([:book_reservation][:booker][:user_without_a_login], message: message)
    response.body[:book_reservation_response]
  end
end

  book = BookReservation.new
  puts book.core_info("DEV-DAN-BETH:73411", "10799", "DINNER", "2015-06-20T21:00:00", "2", )
  puts book.booker_info("John", "Smith", "john.smith@example.com", "true")

SoapUI 中的这个 xml 文档每次都返回一个有效/成功的响应：

<?xml version="1.0" encoding="UTF-8"?>
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns="http://schemas.livebookings.net/OneFormat/Aggregator/Internal/1/0/">
    <soapenv:Header/>
    <soapenv:Body>      
        <ns:BookReservationRequest>            
            <ns:PartnerCode>DEV-DAN-BETH:73411</ns:PartnerCode>
            <ns:RestaurantLocationId>10799</ns:RestaurantLocationId>
            <ns:SessionId>DINNER</ns:SessionId>
            <ns:DiningDateAndTime>2015-06-20T21:00:00</ns:DiningDateAndTime>
            <ns:Size>2</ns:Size>
            <ns:Booker>
                <ns:UserWithoutALogin>
                    <ns:FirstName>John</ns:FirstName>
                    <ns:LastName>Smith</ns:LastName>
                    <ns:EMail>john.smith@example.com</ns:EMail>                      
                    <ns:GuestAcceptsEmailMarketingFromPartner>true</ns:GuestAcceptsEmailMarketingFromPartner>
               </ns:UserWithoutALogin>
            </ns:Booker>       
        </ns:BookReservationRequest>
    </soapenv:Body>
</soapenv:Envelope>

SoapUI 中的成功响应示例：

<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
   <soap:Body>
      <BookReservationResponse xmlns="http://schemas.livebookings.net/OneFormat/Aggregator/Internal/1/0/">
         <ConfirmationNumber>T2NVGBUN</ConfirmationNumber>
         <ReservationId>34277666</ReservationId>
         <AllowedToCancelOnline>true</AllowedToCancelOnline>
      </BookReservationResponse>
   </soap:Body>
</soap:Envelope>

提前非常感谢！

Answer 1

您的 SOAP 消息示例包含一个 Body，该 Body 包含一个 Book Reservation Request，其中包括一个 Booker 块。

但是，您的 BookReservation 类包含两个调用 Savon 客户端的方法 - 其中一个发送一个 BookReservationRequest - 但您从未在调度之前将 Booker 添加到消息哈希中。

几乎 100% 确定您的客户端正在发送无效的 SOAP 请求，因为您没有在 SOAP 正文中指定 <ns:Booker> 块。

我怀疑如果你更新你的类以包含一个如下所示的方法：

def execute(partner_code, restaurant_location_id, session_id, dining_date_and_time, size, first_name, last_name, email, guest_accepts_email_marketing)
    message = { 'PartnerCode' => partner_code, 'RestaurantLocationId' => restaurant_location_id, 'SessionId' => session_id, 'DiningDateAndTime' => dining_date_and_time, 'Size' => size }
    message.merge!('Booker' => { 'FirstName' => first_name, 'LastName' => last_name, 'EMail' => email, 'GuestAcceptsEmailMarketingFromPartner' => guest_accepts_email_marketing })

    response = client.call(:book_reservation, message: message)
    response.hash[:book_reservation_response]

结束

并用以下方式调用它：

book.execute(
  "DEV-DAN-BETH:73411", "10799", "DINNER", "2015-06-20T21:00:00", "2",
   "John", "Smith", "john.smith@example.com", "true" )

你会有更好的运气。