我正在调查SUDS作为python的SOAP客户端.我想检查指定服务中可用的方法,以及指定方法所需的类型.
目的是生成用户界面,允许用户选择方法,然后以动态生成的形式填写值.
我可以获得有关特定方法的一些信息,但我不确定如何解析它:
client = Client(url) method = client.sd.service.methods['MyMethod']
我无法编程以 确定我需要创建哪种对象类型才能调用该服务
obj = client.factory.create('?') res = client.service.MyMethod(obj, soapheaders=authen)
有没有人有一些示例代码?
好的,所以SUDS确实有点神奇.
A suds.client.Client
,是从WSDL文件构建的:
client = suds.client.Client("http://mssoapinterop.org/asmx/simple.asmx?WSDL")
它下载WSDL并在其中创建定义client.wsdl
.当你使用SUDS调用一个方法时,client.service.
它实际上在幕后对着解释的WSDL进行了大量的递归解析.要发现方法的参数和类型,您需要内省此对象.
例如:
for method in client.wsdl.services[0].ports[0].methods.values(): print '%s(%s)' % (method.name, ', '.join('%s: %s' % (part.type, part.name) for part in method.soap.input.body.parts))
这应该打印如下:
echoInteger((u'int', http://www.w3.org/2001/XMLSchema): inputInteger)
echoFloatArray((u'ArrayOfFloat', http://soapinterop.org/): inputFloatArray)
echoVoid()
echoDecimal((u'decimal', http://www.w3.org/2001/XMLSchema): inputDecimal)
echoStructArray((u'ArrayOfSOAPStruct', http://soapinterop.org/xsd): inputStructArray)
echoIntegerArray((u'ArrayOfInt', http://soapinterop.org/): inputIntegerArray)
echoBase64((u'base64Binary', http://www.w3.org/2001/XMLSchema): inputBase64)
echoHexBinary((u'hexBinary', http://www.w3.org/2001/XMLSchema): inputHexBinary)
echoBoolean((u'boolean', http://www.w3.org/2001/XMLSchema): inputBoolean)
echoStringArray((u'ArrayOfString', http://soapinterop.org/): inputStringArray)
echoStruct((u'SOAPStruct', http://soapinterop.org/xsd): inputStruct)
echoDate((u'dateTime', http://www.w3.org/2001/XMLSchema): inputDate)
echoFloat((u'float', http://www.w3.org/2001/XMLSchema): inputFloat)
echoString((u'string', http://www.w3.org/2001/XMLSchema): inputString)
因此,部件类型元组的第一个元素可能就是你所追求的:
>>> client.factory.create(u'ArrayOfInt') (ArrayOfInt){ _arrayType = "" _offset = "" _id = "" _href = "" _arrayType = "" }
更新:
对于Weather服务,似乎"参数"是element
不具有type
以下内容的部分:
>>> client = suds.client.Client('http://www.webservicex.net/WeatherForecast.asmx?WSDL') >>> client.wsdl.services[0].ports[0].methods.values()[0].soap.input.body.parts[0].element (u'GetWeatherByZipCode', http://www.webservicex.net) >>> client.factory.create(u'GetWeatherByZipCode') (GetWeatherByZipCode){ ZipCode = None }
但这对于方法调用的参数来说是神奇的(la.IIRC client.service.GetWeatherByZipCode("12345")
这是SOAP RPC绑定样式吗?我认为这里有足够的信息可以帮助你开始.提示:Python命令行界面是你的朋友!
根据suds
文档,您可以检查service
对象__str()__
.以下是获取方法和复杂类型的列表:
from suds.client import Client; url = 'http://www.webservicex.net/WeatherForecast.asmx?WSDL' client = Client(url) temp = str(client);
上面的代码产生以下结果(内容temp
):
Suds ( https://fedorahosted.org/suds/ ) version: 0.3.4 (beta) build: R418-20081208 Service ( WeatherForecast ) tns="http://www.webservicex.net" Prefixes (1) ns0 = "http://www.webservicex.net" Ports (2): (WeatherForecastSoap) Methods (2): GetWeatherByPlaceName(xs:string PlaceName, ) GetWeatherByZipCode(xs:string ZipCode, ) Types (3): ArrayOfWeatherData WeatherData WeatherForecasts (WeatherForecastSoap12) Methods (2): GetWeatherByPlaceName(xs:string PlaceName, ) GetWeatherByZipCode(xs:string ZipCode, ) Types (3): ArrayOfWeatherData WeatherData WeatherForecasts
这将更容易解析.此外,还列出了每个方法及其参数及其类型.您可能甚至可以使用正则表达式来提取所需的信息.
这是我根据上述信息编写的快速脚本,列出了WSDL上可用的输入方法suds报告.传入WSDL URL.适用于我目前正在进行的项目,我无法保证为您服务.
import suds def list_all(url): client = suds.client.Client(url) for service in client.wsdl.services: for port in service.ports: methods = port.methods.values() for method in methods: print(method.name) for part in method.soap.input.body.parts: part_type = part.type if(not part_type): part_type = part.element[0] print(' ' + str(part.name) + ': ' + str(part_type)) o = client.factory.create(part_type) print(' ' + str(o))