Question

我试图通过WSDL here从荷兰政府土地登记簿PySimpleSoap）获取SOAP服务的相关信息。到目前为止，我设法使用以下代码连接并请求有关特定属性的信息：

from pysimplesoap.client import SoapClient
client = SoapClient(wsdl='http://www1.kadaster.nl/1/schemas/kik-inzage/20141101/verzoekTotInformatie-2.1.wsdl', username='xxx', password='xxx', trace=True)

response = client.VerzoekTotInformatie(
    Aanvraag={
        'berichtversie': '4.7',  # Refers to the schema version
        'klantReferentie': klantReferentie,  # A reference we can set ourselves.
        'productAanduiding': '1185',  # a four-digit code referring to whether the response should be in "XML" (1185), "PDF" (1191) or "XML and PDF" (1057).
        'Ingang': {
            'Object': {
                'IMKAD_KadastraleAanduiding': {
                    'gemeente': 'ARNHEM AC',  # municipality
                    'sectie': 'AC',  # section code
                    'perceelnummer': '1234'  # Lot number
                }
            }
        }
    }
)

这＆＃34;有点＆＃34;作品。我设置trace=True所以我得到了大量的日志消息，在那些日志消息中，我看到了一个巨大的xml输出（paste here），它几乎包含了我请求的所有信息。但是，我也得到了这个追溯：

Traceback (most recent call last):
  File "<input>", line 1, in <module>
    'perceelnummer': perceelnummer
  File "/Library/Python/2.7/site-packages/pysimplesoap/client.py", line 181, in <lambda>
    return lambda *args, **kwargs: self.wsdl_call(attr, *args, **kwargs)
  File "/Library/Python/2.7/site-packages/pysimplesoap/client.py", line 346, in wsdl_call
    return self.wsdl_call_with_args(method, args, kwargs)
  File "/Library/Python/2.7/site-packages/pysimplesoap/client.py", line 372, in wsdl_call_with_args
    resp = response('Body', ns=soap_uri).children().unmarshall(output)
  File "/Library/Python/2.7/site-packages/pysimplesoap/simplexml.py", line 433, in unmarshall
    value = children and children.unmarshall(fn, strict)
  File "/Library/Python/2.7/site-packages/pysimplesoap/simplexml.py", line 433, in unmarshall
    value = children and children.unmarshall(fn, strict)
  File "/Library/Python/2.7/site-packages/pysimplesoap/simplexml.py", line 433, in unmarshall
    value = children and children.unmarshall(fn, strict)
  File "/Library/Python/2.7/site-packages/pysimplesoap/simplexml.py", line 380, in unmarshall
    raise TypeError("Tag: %s invalid (type not found)" % (name,))
TypeError: Tag: IMKAD_Perceel invalid (type not found)

据我了解，这意味着simplexml parser无法理解IMKAD_Perceel标记（我猜测）是因为它无法读取/找到此定义wdsl文件中的标记。

所以我检查了解析wsdl文件的（大量）日志消息，并显示了这些行：

DEBUG:pysimplesoap.helpers:Parsing Element element: IMKAD_Perceel
DEBUG:pysimplesoap.helpers:Processing element IMKAD_Perceel element
DEBUG:pysimplesoap.helpers:IMKAD_Perceel has no children!
DEBUG:pysimplesoap.helpers:complexContent/simpleType/element IMKAD_Perceel = IMKAD_Perceel
DEBUG:pysimplesoap.helpers:Parsing Element complexType: IMKAD_Perceel
DEBUG:pysimplesoap.helpers:Processing element IMKAD_Perceel complexType
DEBUG:pysimplesoap.helpers:complexContent/simpleType/element IMKAD_Perceel = IMKAD_OnroerendeZaak
DEBUG:pysimplesoap.helpers:Processing element IMKAD_Perceel complexType

我猜这些行意味着IMKAD_Perceel定义为空。所以我使用SoapUI来反省the WSDL file，其中我找到了an url to this .xsd-file，其中我找到了IMKAD_Perceel的定义：

<xs:element name="IMKAD_Perceel" 
    substitutionGroup="ipkbo:IMKAD_OnroerendeZaak" 
    type="ipkbo:IMKAD_Perceel"
    />

标签确实似乎正在关闭，这意味着它是空的。这是pysimplesoap认为IMKAD_Perceel未定义的原因吗？为什么它不能简单地解释xml并将其作为dict返回？（如前所述，我收到的完整xml输出位于this paste）。

有没有人知道如何使pysimplesoap解释xml并将其转换为dict，无论它是否遵守wsdl？

欢迎所有提示！

Answer 1

似乎pysimplesoap无法在xml架构中处理substitutionGroup。

您可以在xsd文件中看到：

<xs:element name="IMKAD_Perceel" 
substitutionGroup="ipkbo:IMKAD_OnroerendeZaak" 
type="ipkbo:IMKAD_Perceel"
/>

有substitutionGroup，这意味着IMKAD_Perceel和IMKAD_OnroerendeZaak是相同的东西，可以互相替代。

在soap模式中，响应的这一特定部分定义为：

<xs:complexType name="BerichtGegevens">
 <xs:annotation>
   <xs:documentation>Inhoud van het bericht.</xs:documentation>    
 </xs:annotation>
 <xs:sequence>
   <xs:element ref="ipkbo:IMKAD_OnroerendeZaak" minOccurs="1" maxOccurs="1"/>
   <xs:element ref="ipkbo:Recht" minOccurs="1" maxOccurs="1"/><xs:element ref="ipkbo:IMKAD_Stuk" minOccurs="0" maxOccurs="unbounded"/>
   <xs:element ref="ipkbo:IMKAD_Persoon" minOccurs="1" maxOccurs="unbounded"/>
   <xs:element ref="ipkbo:GemeentelijkeRegistratie" minOccurs="0" maxOccurs="unbounded"/>
 </xs:sequence>
</xs:complexType>

但是，您可以看到实际响应如下：

<ipkbo:BerichtGegevens>
  <ipkbo:IMKAD_Perceel>...</ipkbo:IMKAD_Perceel>
  <ipkbo:Recht>...</ipkbo:Recht>
  <ipkbo:IMKAD_AangebodenStuk>...</ipkbo:IMKAD_AangebodenStuk>
  <ipkbo:IMKAD_Persoon>...</ipkbo:IMKAD_Persoon>
</ipkbo:BerichtGegevens>

然后pysimplesoap似乎感到困惑，无法获得正确的响应类型。

SOAP请求中的TypeError（使用pysimplesoap）

1 个答案: