深入 Python

示例 12.7. 调试 SOAP Web 服务

>>> from SOAPpy import SOAPProxy
>>> url = 'http://services.xmethods.net:80/soap/servlet/rpcrouter'
>>> n = 'urn:xmethods-Temperature'
>>> server = SOAPProxy(url, namespace=n)     
>>> server.config.dumpSOAPOut = 1            
>>> server.config.dumpSOAPIn = 1
>>> temperature = server.getTemp('27502')    
*** Outgoing SOAP ******************************************************
<?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
  xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"
  xmlns:xsi="http://www.w3.org/1999/XMLSchema-instance"
  xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
  xmlns:xsd="http://www.w3.org/1999/XMLSchema">
<SOAP-ENV:Body>
<ns1:getTemp xmlns:ns1="urn:xmethods-Temperature" SOAP-ENC:root="1">
<v1 xsi:type="xsd:string">27502</v1>
</ns1:getTemp>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
************************************************************************
*** Incoming SOAP ******************************************************
<?xml version='1.0' encoding='UTF-8'?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SOAP-ENV:Body>
<ns1:getTempResponse xmlns:ns1="urn:xmethods-Temperature"
  SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
<return xsi:type="xsd:float">80.0</return>
</ns1:getTempResponse>

</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
************************************************************************

>>> temperature
80.0

	首先，像往常一样使用服务 URL 和命名空间创建 SOAPProxy。
	其次，通过设置 server.config.dumpSOAPIn 和 server.config.dumpSOAPOut 来开启调试。
	第三，像往常一样调用远程 SOAP 方法。SOAP 库将打印出传出的 XML 请求文档和传入的 XML 响应文档。这就是 SOAPProxy 为您所做的所有艰苦工作。是不是很吓人？让我们来分解一下。