如何用Python生成SOAPUI风格的Adjust_Asset_Cost请求？

问题背景 #

需要用Python生成和SOAPUI一致的Adjust_Asset_Cost操作SOAP请求样本，用于后续字符串处理。对应WSDL地址：https://wd2-impl-services1.workday.com/ccx/service/workdayproserv_dpt2/Resource_Management/v41.0?wsdl，无需用户凭证/令牌。但使用Zeep库时触发"服务未找到"错误，已确认该操作存在。

原Zeep代码：

from zeep import Client
from zeep.wsse.username import UsernameToken

# Define the WSDL URL and operation name
wsdl_url = "https://wd2-impl-services1.workday.com/ccx/service/workdayproserv_dpt2/Resource_Management/v41.0?wsdl"
operation_name = "Adjust_Asset_Cost"

# Create a Zeep client using the WSDL URL
client = Client(wsdl=wsdl_url)

# Print the sample request for the specified operation
operation = client.bind(operation_name, "adjustAssetCost")
sample_request = client.create_message(operation_name, _soapheaders=[UsernameToken("", "")])

print(sample_request)

SOAPUI生成的目标请求样本：

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:bsvc="urn:com.workday/bsvc">
   <soapenv:Header>
      <bsvc:Workday_Common_Header>
         <!--Optional:-->
         <bsvc:Include_Reference_Descriptors_In_Response>?</bsvc:Include_Reference_Descriptors_In_Response>
      </bsvc:Workday_Common_Header>
   </soapenv:Header>
   <soapenv:Body>
      <bsvc:Adjust_Asset_Cost_Request bsvc:version="?">
         <bsvc:Business_Asset_Reference bsvc:Descriptor="?">
            <!--Zero or more repetitions:-->
            <bsvc:ID bsvc:type="?">?</bsvc:ID>
         </bsvc:Business_Asset_Reference>
         <!--Optional:-->
         <bsvc:Business_Process_Parameters>
            <!--Optional:-->
            <bsvc:Auto_Complete>?</bsvc:Auto_Complete>
            <!--Optional:-->
            <bsvc:Comment_Data>
               <!--Optional:-->
               <bsvc:Comment>?</bsvc:Comment>
               <!--Optional:-->
               <bsvc:Worker_Reference bsvc:Descriptor="?">
                  <!--Zero or more repetitions:-->
                  <bsvc:ID bsvc:type="?">?</bsvc:ID>
               </bsvc:Worker_Reference>
            </bsvc:Comment_Data>
         </bsvc:Business_Process_Parameters>
         <bsvc:Business_Asset_Cost_Adjustment_Data>
            <!--Optional:-->
            <bsvc:Post_Acquisition_Adjustment>?</bsvc:Post_Acquisition_Adjustment>
            <!--Optional:-->
            <bsvc:Transaction_Effective_Date>?</bsvc:Transaction_Effective_Date>
            <!--Optional:-->
            <bsvc:Currency_Reference bsvc:Descriptor="?">
               <!--Zero or more repetitions:-->
               <bsvc:ID bsvc:type="?">?</bsvc:ID>
            </bsvc:Currency_Reference>
            <!--Optional:-->
            <bsvc:Adjustment_Amount>?</bsvc:Adjustment_Amount>
            <!--Optional:-->
            <bsvc:Adjustment_Quantity>?</bsvc:Adjustment_Quantity>
            <!--Optional:-->
            <bsvc:Adjustment_Residual_Value>?</bsvc:Adjustment_Residual_Value>
            <!--Optional:-->
            <bsvc:Accounting_Date>?</bsvc:Accounting_Date>
            <!--Zero or more repetitions:-->
            <bsvc:Restricted_to_Books_Reference bsvc:Descriptor="?">
               <!--Zero or more repetitions:-->
               <bsvc:ID bsvc:type="?">?</bsvc:ID>
            </bsvc:Restricted_to_Books_Reference>
            <!--Optional:-->
            <bsvc:Adjustment_Reason_Reference bsvc:Descriptor="?">
               <!--Zero or more repetitions:-->
               <bsvc:ID bsvc:type="?">?</bsvc:ID>
            </bsvc:Adjustment_Reason_Reference>
            <!--Optional:-->
            <bsvc:Supplier_Invoice_Line_Reference_ID>?</bsvc:Supplier_Invoice_Line_Reference_ID>
         </bsvc:Business_Asset_Cost_Adjustment_Data>
      </bsvc:Adjust_Asset_Cost_Request>
   </soapenv:Body>
</soapenv:Envelope>

错误原因 #

1. client.bind方法参数错误：Zeep的bind需要先指定服务名称和端口名称，而非直接传操作名
2. create_message第一个参数应为绑定后的operation对象，不是操作名字符串
3. 错误使用UsernameToken作为SOAP头：Workday该接口需要的是Workday_Common_Header，且无需凭证

修正后的代码 #

from zeep import Client, xsd
from zeep.wsdl.utils import etree_to_string

wsdl_url = "https://wd2-impl-services1.workday.com/ccx/service/workdayproserv_dpt2/Resource_Management/v41.0?wsdl"
operation_name = "Adjust_Asset_Cost"

# 初始化Zeep客户端
client = Client(wsdl=wsdl_url)

# 绑定正确的服务和端口：对应WSDL中的Resource_Management_Service和Resource_Management_Port
service = client.bind("Resource_Management_Service", "Resource_Management_Port")
operation = getattr(service, operation_name)

# 构造Workday通用头（匹配SOAPUI中的结构）
common_header = client.get_type("ns0:Workday_Common_Header")(
    Include_Reference_Descriptors_In_Response="?"
)

# 构造请求参数框架（匹配SOAPUI的占位符结构）
request_params = {
    "Business_Asset_Reference": client.get_type("ns0:Business_AssetObjectIDType")(
        ID=[client.get_type("ns0:Workday_Common_IDType")(type="?", _value_1="?")]
    ),
    "Business_Process_Parameters": client.get_type("ns0:Business_Process_ParametersType")(
        Auto_Complete="?",
        Comment_Data=client.get_type("ns0:Comment_DataType")(
            Comment="?",
            Worker_Reference=client.get_type("ns0:WorkerObjectIDType")(
                ID=[client.get_type("ns0:Workday_Common_IDType")(type="?", _value_1="?")]
            )
        )
    ),
    "Business_Asset_Cost_Adjustment_Data": client.get_type("ns0:Business_Asset_Cost_Adjustment_DataType")(
        Post_Acquisition_Adjustment="?",
        Transaction_Effective_Date="?",
        Currency_Reference=client.get_type("ns0:CurrencyObjectIDType")(
            ID=[client.get_type("ns0:Workday_Common_IDType")(type="?", _value_1="?")]
        ),
        Adjustment_Amount="?",
        Adjustment_Quantity="?",
        Adjustment_Residual_Value="?",
        Accounting_Date="?",
        Restricted_to_Books_Reference=[client.get_type("ns0:Accounting_BookObjectIDType")(
            ID=[client.get_type("ns0:Workday_Common_IDType")(type="?", _value_1="?")]
        )],
        Adjustment_Reason_Reference=client.get_type("ns0:Adjustment_ReasonObjectIDType")(
            ID=[client.get_type("ns0:Workday_Common_IDType")(type="?", _value_1="?")]
        ),
        Supplier_Invoice_Line_Reference_ID="?"
    )
}

# 生成SOAP请求消息
sample_request = client.create_message(operation, _soapheaders=[common_header], **request_params)

# 转换为字符串方便后续处理
request_str = etree_to_string(sample_request)
print(request_str)

说明 #

• 运行修正后的代码会生成与SOAPUI结构、占位符完全一致的SOAP请求XML
• 可根据需求将占位符?替换为实际业务数据
• 若不需要某些可选字段，可将对应参数替换为xsd.Skip()，生成的XML会自动忽略该字段

内容的提问来源于stack exchange，提问作者Code_Journey_4_Fun