通过HTTP请求，将XML以SOAP消息的方式发给JWSDP、.NET的webservice

浅浅的花香味﹌ 2022-05-14 13:42 126阅读 0赞

###                  通过HTTP请求，将XML以SOAP消息的方式发给JWSDP、.NET的webservice ###

本节将展示一种代码模板，它会以‘手动’方式向JWSDP的webservice(document/literal)传递SOAP消息。后面也会用相同的方法访问 Infobel webservice。

####    １．XML通过HTTP请求到JWSDP  webservice ####

使用python向web服务器传送一个文件相对容易些。对于JWSDP webservice，不要忘了在消息头中增加Content-type，只有这样，调用才能被服务器正常接收。下面是一个命令行示例，SOAP响应都不加解析地被打印出来。由于返回数据相对复杂，我会在稍后的Infobel web service示例中讲解如何使用PyXml解析SOAP消息。

##### 例3．如何用python传递SOAP消息 #####

在接下来的示例中我们访问readLS(),它带有一个string类型的返回值。

\# post方式提交 xml的 soap 消息  
import sys, httplib  
   
\# a "as lighter as possible" soap message:  
SM\_TEMPLATE = """<?xml version="1.0" encoding="UTF-8"?>  
<SOAP-ENV:Envelope  
SOAP-ENV:encodingStyle="[http://schemas.xmlsoap.org/soap/encoding/][http_schemas.xmlsoap.org_soap_encoding]"   
xmlns:SOAP-ENV="[http://schemas.xmlsoap.org/soap/envelope/][http_schemas.xmlsoap.org_soap_envelope]">  
<SOAP-ENV:Body>  
<ns1:readLS xmlns:ns1="[http://phonedirlux.homeip.net/types][http_phonedirlux.homeip.net_types]">  
<String\_1>%s</String\_1>  
</ns1:readLS>  
</SOAP-ENV:Body>  
</SOAP-ENV:Envelope>  
"""  
   
SoapMessage = SM\_TEMPLATE%("Your message or e-mail")  
   
print SoapMessage  
   
\#构造并发送消息头  
webservice = httplib.HTTP("[www.pascalbotte.be][]")  
webservice.putrequest("POST", "/rcx-ws/rcx")  
webservice.putheader("Host", "[www.pascalbotte.be][]")  
webservice.putheader("User-Agent", "Python post")  
webservice.putheader("Content-type", "text/xml; charset=/"UTF-8/"")  
webservice.putheader("Content-length", "%d" % len(SoapMessage))  
webservice.putheader("SOAPAction", "/"/"")  
webservice.endheaders()  
webservice.send(SoapMessage)  
   
\# 获取返回  
statuscode, statusmessage, header = webservice.getreply()  
print "Response: ", statuscode, statusmessage  
print "headers: ", header  
res = webservice.getfile().read()  
print res

如果你想使用我的webservice测试这段代码，请点击这里（如果在线）。通常，你可以使用自己喜爱的开发工具做一个客户端，并修改SOAP消息访问别的webservice，用以捕获客户端与服务端的SOAP消息交换。

#### ２．使用PyXml的DOM做一个SOAP消息请求到webservice ####

如何投递（POST）动态的SOAP消息呢？下面示例介绍怎样使用PyXml的DOM创建SOAP消息：

\# post 一个 xml 文件, 使用 DOM 创建SOAP消息  
import sys, httplib  
   
from xml.dom     import implementation  
from xml.dom.ext import PrettyPrint  
   
import StringIO  
   
\# 定义所需的名字空间  
ec = "[http://schemas.xmlsoap.org/soap/encoding/][http_schemas.xmlsoap.org_soap_encoding]"  
soapEnv = "[http://schemas.xmlsoap.org/soap/envelope/][http_schemas.xmlsoap.org_soap_envelope]"  
myns = "[http://phonedirlux.homeip.net/types][http_phonedirlux.homeip.net_types]"  
   
\# DOM 文档  
domdoc = implementation.createDocument(None, '', None)  
   
\# SOAP 封装名字空间  
seObj = domdoc.createElementNS(soapEnv, "SOAP-ENV:Envelope")  
seObj.setAttributeNS(soapEnv, "SOAP-ENV:encodingStyle", ec)  
   
\# 加到根部  
domdoc.appendChild(seObj)  
   
header = domdoc.createElement("SOAP-ENV:Header")  
seObj.appendChild(header)  
body = domdoc.createElement("SOAP-ENV:Body")  
readls = domdoc.createElementNS(myns, "ns1:readLS")  
string\_1 = domdoc.createElement("String\_1")  
string\_1.appendChild(domdoc.createTextNode("Message created with PyXml, your e-mail"))  
readls.appendChild(string\_1)  
body.appendChild(readls)  
   
seObj.appendChild(body)  
   
soapStr = StringIO.StringIO()  
PrettyPrint(domdoc, soapStr)  
   
\# 查看SOAP消息  
print soapStr.getvalue()  
   
\# 构造头部并投递  
webservice = httplib.HTTP("[www.pascalbotte.be][]")  
webservice.putrequest("POST", "/rcx-ws/rcx")  
webservice.putheader("Host", "[www.pascalbotte.be][]")  
webservice.putheader("User-Agent", "My post")  
webservice.putheader("Content-type", "text/xml; charset=/"UTF-8/"")  
webservice.putheader("Content-length", "%d" % len(soapStr.getvalue()))  
webservice.putheader("SOAPAction", "/"/"")  
webservice.endheaders()  
webservice.send(soapStr.getvalue())  
   
\# 获取返回  
statuscode, statusmessage, header = webservice.getreply()  
print "Response: ", statuscode, statusmessage  
print "headers: ", header  
res = webservice.getfile().read()  
print res

转自：[http://hi.baidu.com/moatlzy/blog/item/410fe43b5a12ebf83a87ce99.html][http_hi.baidu.com_moatlzy_blog_item_410fe43b5a12ebf83a87ce99.html]

[http_schemas.xmlsoap.org_soap_encoding]: http://schemas.xmlsoap.org/soap/encoding/
[http_schemas.xmlsoap.org_soap_envelope]: http://schemas.xmlsoap.org/soap/envelope/
[http_phonedirlux.homeip.net_types]: http://phonedirlux.homeip.net/types
[www.pascalbotte.be]: http://www.pascalbotte.be
[http_hi.baidu.com_moatlzy_blog_item_410fe43b5a12ebf83a87ce99.html]: http://hi.baidu.com/moatlzy/blog/item/410fe43b5a12ebf83a87ce99.html