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python编撰soap服务

更新时间: 2014-01-05 02:01:51 责任编辑: Author_N1

 

python编写SOAP服务
SOAP简介


参考: http://stackoverflow.com/questions/206154/whats-the-best-soap-client-library-for-python-and-where-is-the-documentation-f

用SOAPpy编写的一个简单例子

SOAPpy包:http://pypi.python.org/pypi/SOAPpy/

A simple "Hello World" http SOAP server:
import SOAPpy
def hello():
    return "Hello World"
server = SOAPpy.SOAPServer(("localhost", 8080))
server.registerFunction(hello)
server.serve_forever()


And the corresponding client:

import SOAPpy
server = SOAPpy.SOAPProxy("http://localhost:8080/")
print server.hello()


soaplib编写soap server

选用soaplib,因为看对各包的简介,soaplib对服务器端的编写更加简单

soaplib包: http://pypi.python.org/pypi/soaplib/0.8.1

soaplib 2.0的安装

git clone git://github.com/soaplib/soaplib.git
cd soaplib
python setup.py install

参考:http://soaplib.github.com/soaplib/2_0/

soaplib2.0 和 wsgi webserver 编写的一个简单例子

Declaring a Soaplib Service

import soaplib
from soaplib.core.service import rpc, DefinitionBase
from soaplib.core.model.primitive import String, Integer
from soaplib.core.server import wsgi
from soaplib.core.model.clazz import Array


class HelloWorldService(DefinitionBase):
    @soap(String,Integer,_returns=Array(String))
    def say_hello(self,name,times):
        results = []
        for i in range(0,times):
            results.append('Hello, %s'%name)
        return results

if __name__=='__main__':
    try:
        from wsgiref.simple_server import make_server
        soap_application = soaplib.core.Application([HelloWorldService], 'tns')
        wsgi_application = wsgi.Application(soap_application)
        server = make_server('localhost', 7789, wsgi_application)
        server.serve_forever()
    except ImportError:
        print "Error: example server code requires Python >= 2.5"

SOAP Client

>>> from suds.client import Client
>>> hello_client = Client('http://localhost:7789/?wsdl')
>>> result = hello_client.service.say_hello("Dave", 5)
>>> print result

(stringArray){
   string[] =
      "Hello, Dave",
      "Hello, Dave",
      "Hello, Dave",
      "Hello, Dave",
      "Hello, Dave",
 }


  

soaplib 2.0 的一个bug

在运行上面的小例子时,服务器端报错:

......
  File "/usr/local/lib/python2.6/dist-packages/soaplib-2.0.0_beta2-py2.6.egg/soaplib/core/_base.py", line 331, in parse_xml_string
    return _parse_xml_string(xml_string, charset)
NameError: global name 'x' is not defined

修改源码包:/usr/local/lib/python2.6/dist-packages/soaplib-2.0.0_beta2-py2.6.egg/soaplib/core/_base.py

line 331
...
    def parse_xml_string(self, xml_string, charset=None):
        #return _parse_xml_string(x, charset)
        return _parse_xml_string(xml_string, charset)
...


修改后,例子可以正常运行,这么明显的错误都有,果然是2.0beta版

用rpclib实现soap server

文档:http://arskom.github.com/rpclib/

rpclib服务器端接收对象参数

一个简单例子的实现

SERVER

import logging
from rpclib.application import Application
from rpclib.decorator import srpc
from rpclib.interface.wsdl import Wsdl11
from rpclib.protocol.soap import Soap11
from rpclib.service import ServiceBase
from rpclib.model.complex import Iterable
from rpclib.model.primitive import Integer
from rpclib.model.primitive import String
from rpclib.server.wsgi import WsgiApplication
from rpclib.util.simple import wsgi_soap11_application

class HelloWorldService(ServiceBase):
    @srpc(String, Integer, _returns=Iterable(String))
    def say_hello(name, times):
        '''
        Docstrings for service methods appear as documentation in the wsdl
        <b>what fun</b>
        @param name the name to say hello to
        @param the number of times to say hello
        @return the completed array
        '''
        print times

        for i in xrange(times):
            yield u'Hello, %s' % name

if __name__=='__main__':
    try:
        from wsgiref.simple_server import make_server
    except ImportError:
        print "Error: example server code requires Python >= 2.5"

    logging.basicConfig(level=logging.DEBUG)
    logging.getLogger('rpclib.protocol.xml').setLevel(logging.DEBUG)

    application = Application([HelloWorldService], 'rpclib.examples.hello.soap', interface=Wsdl11(), in_protocol=Soap11(), out_protocol=Soap11())

    server = make_server('192.168.0.31', 7789, WsgiApplication(application))

    print "listening to http://192.168.0.31:7789"
    print "wsdl is at: http://192.168.0.31:7789/?wsdl"

    server.serve_forever()


 

Client
from suds.client import Client
c = Client('http://192.168.0.31:7789/?wsdl')
a = c.service.say_hello(u'punk', 5)
print a

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