11:31 p.m.
Hi Burak,
Thanks much for your replay.
part 1:
What you want to said is below, is not it?
1: soaplib work as client is incomplete. A good choice for webservice
client is suds.
2: "Currently, the only advantage of using rpclib as a soap client is its
speed and if you need speed that bad, you should not be using soap (or xml)
anyway.",
do you mean that soap is slow and we did nothing about it.
part 2:
"Does this answer your question, or is there any more", In fact, i want to
know why sometimes suds throws a stack of exceptions when invoke soaplib
sever. I have to admire most of time it's okay and wastes longer time.
The details is reported in problem 2 of my mail.
part 3: Do you have some experience about Java Axis2?
I developed a webservice server-side using tornadows(tornadow
webservice.Besides soaplib, tornadows is the best server-side I have meet).
I use suds-client invoke tornadows-server successfully. While, if i use
Java Axis2 invoke it, nothing happened and the request nearly not reach the
server.
In actual fact, how to invoke a webservice server-side successfully is my
true question. What I need is provide a python webservice server-side which
can be invoked by Java Axis2. This is why i try to find a good webservice
server-side, including soaplib.
you can see the code in detail:
# server-side: tornadows
import logging
import tornado.httpserver
import tornado.ioloop
import tornado.web
from tornadows import soaphandler
from tornadows import webservices
from tornadows import xmltypes
from tornadows.soaphandler import webservice
from tornado.options import define, options
define('mode', default='deploy')
define('port', type=int, default=8000)
options['logging'].set('warning')
class SMSService(soaphandler.SoapHandler):
@webservice(_params=xmltypes.Integer,_returns=xmltypes.Integer)
def getPrice(self,a):
return 1987
if __name__ == '__main__':
service = [('SMSService',SMSService)]
app = webservices.WebService(service)
ws = tornado.httpserver.HTTPServer(app)
ws.listen(options.port)
logging.warn("SMSService running on: localhost:%d", options.port)
tornado.ioloop.IOLoop.instance().start()
# wsdl: you can find it in web browser through the url “
http://172.16.2.46:8000/SMSService?wsdl”
<wsdl:definitions xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns:tns="http://127.0.1.1:8000/SMSService/getPrice"
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsd="
http://www.w3.org/2001/XMLSchema"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
name="SMSService"
targetNamespace="http://127.0.1.1:8000/SMSService/getPrice">
<wsdl:types>
<xsd:schema targetNamespace="http://127.0.1.1:8000/SMSService/getPrice">
<xsd:complexType name="paramsTypes">
<xsd:sequence>
<xsd:element name="a" type="xsd:integer"/>
</xsd:sequence>
</xsd:complexType>
<xsd:element name="params" type="tns:paramsTypes"/>
<xsd:element name="returns" type="xsd:integer"/>
</xsd:schema>
</wsdl:types>
<wsdl:message name="SMSServiceRequest">
<wsdl:part element="tns:params" name="parameters"/>
</wsdl:message>
<wsdl:message name="SMSServiceResponse">
<wsdl:part element="tns:returns" name="parameters"/>
</wsdl:message>
<wsdl:portType name="SMSServicePortType">
<wsdl:operation name="getPrice">
<wsdl:input message="tns:SMSServiceRequest"/>
<wsdl:output message="tns:SMSServiceResponse"/>
</wsdl:operation>
</wsdl:portType>
<wsdl:binding name="SMSServiceBinding"
type="tns:SMSServicePortType">
<soap:binding style="document" transport="
http://schemas.xmlsoap.org/soap/http"/>
<wsdl:operation name="getPrice">
<soap:operation soapAction="http://127.0.1.1:8000/SMSService"
style="document"/>
<wsdl:input>
<soap:body use="literal"/>
</wsdl:input>
<wsdl:output>
<soap:body use="literal"/>
</wsdl:output>
</wsdl:operation>
</wsdl:binding>
<wsdl:service name="SMSService">
<wsdl:port binding="tns:SMSServiceBinding"
name="SMSServicePort">
<soap:address location="http://127.0.1.1:8000/SMSService"/>
</wsdl:port>
</wsdl:service>
</wsdl:definitions>
# client:
package client;
import javax.xml.namespace.QName;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.rpc.client.RPCServiceClient;
public class client_for_python {
public static void main(String[] args) throws Exception {
// step 1: 使用RPC方式调用WebService
RPCServiceClient serviceClient = new RPCServiceClient();
Options options = serviceClient.getOptions();
// step 2: 指定调用WebService的URL
// url for python
String url2 = "http://172.16.2.46:8000/SMSService";
EndpointReference targetEPR = new EndpointReference(url2);
options.setTo(targetEPR);
// step 3: 指定getGreeting方法的参数值
// step 5-6: (similiar whit
// it!)下面是调用getPrice方法的代码，这些代码与调用getGreeting方法的代码类似
Class[] classes = new Class[] { int.class };
QName opAddEntry = new QName(
"http://172.16.2.46:8000/SMSService/getPrice");
System.out.println(serviceClient.invokeBlocking(opAddEntry,
new Object[] {1}, classes)[0]);
}
}
# NOTE: the client get nothing from sever-side and server-side get nothing
from Axis2-client.
Apart from it, I made a server-side using soaplib. Still be failed though.
# server-side: soaplib
from soaplib.wsgi_soap import SimpleWSGISoapApp
from soaplib.service import soapmethod
from soaplib.serializers.clazz import ClassSerializer
from soaplib.serializers.primitive import String, Integer, Array, DateTime
class SMSService(SimpleWSGISoapApp):
@soapmethod(_returns=Integer)
def getPrice(self):
return 11
if __name__=='__main__':
try:
from wsgiref.simple_server import make_server
server = make_server('localhost', 7789,SMSService())
server.serve_forever()
except ImportError:
print "Error: example server code requires Python >= 2.5"
#wsdl: I cannot get wsdl form web browser, and I get the wsdl using "w3m
http//localhost:7789/?wsdl' from the server-side.
<definitions xmlns:plnk="http://schemas.xmlsoap.org/ws/2003/05/partner-link/
"
xmlns:tns="SMSService.SMSService"
xmlns:typens="SMSService.SMSService"
xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="
http://www.w3.org/1999/XMLSchema-
instance" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
xmlns="http://schemas.xmlsoap.org/wsdl/"
targetNamespace="SMSService.SMSService"
name="SMSService">
<types>
<schema xmlns="http://www.w3.org/2001/XMLSchema"
targetNamespace="SMSService.SMSService">
<xs:element name="getPriceResponse"
type="tns:getPriceResponse"/>
<xs:complexType name="getPrice">
<xs:sequence/>
</xs:complexType>
<xs:complexType name="getPriceResponse">
<xs:sequence>
<xs:element name="getPriceResult" type="xs:int"/>
</xs:sequence>
</xs:complexType>
<xs:element name="getPrice" type="tns:getPrice"/>
</schema>
</types>
<message name="getPrice"/>
<message name="getPriceResponse">
<part name="getPriceResponse" element="tns:getPriceResponse"/>
</message>
<portType name="SMSService">
<operation name="getPrice" parameterOrder="getPrice">
<documentation/>
<input name="getPrice" message="tns:getPrice"/>
<output name="getPriceResponse"
message="tns:getPriceResponse"/>
</operation>
</portType>
<plnk:partnerLinkType name="SMSService">
<plnk:role name="SMSService">
<plnk:portType name="tns:SMSService"/>
</plnk:role>
</plnk:partnerLinkType>
<binding name="SMSService" type="tns:SMSService">
<soap:binding style="document" transport="
http://schemas.xmlsoap.org/soap/http"/>
<operation name="getPrice">
<soap:operation soapAction="getPrice" style="document"/>
<input name="getPrice">
<soap:body use="literal"/>
</input>
<output name="getPriceResponse">
<soap:body use="literal"/>
</output>
</operation>
</binding>
<service name="SMSService">
<port name="SMSService" binding="tns:SMSService">
<soap:address location="http://localhost:7789/?wsdl"/>
</port>
</service>
</definitions>
# client: Java Axis2
package client;
import javax.xml.namespace.QName;
import org.apache.axis2.addressing.EndpointReference;
import org.apache.axis2.client.Options;
import org.apache.axis2.rpc.client.RPCServiceClient;
public class client_for_python_soaplib {
public static void main(String[] args) throws Exception {
// step 1: 使用RPC方式调用WebService
RPCServiceClient serviceClient = new RPCServiceClient();
Options options = serviceClient.getOptions();
// step 2: 指定调用WebService的URL
// url for python
String url2 = "http://172.16.2.46:7789";
EndpointReference targetEPR = new EndpointReference(url2);
options.setTo(targetEPR);
// step 3: 指定getGreeting方法的参数值
// step 5-6: (similiar whit
// it!)下面是调用getPrice方法的代码，这些代码与调用getGreeting方法的代码类似
Class[] classes = new Class[] { int.class };
QName opAddEntry = new QName(url2,
"SMSService.SMSService");
System.out.println(serviceClient.invokeBlocking(opAddEntry,
new Object[] {1}, classes)[0]);
}
}
# output:
Exception in thread "main" org.apache.axis2.AxisFault: Connection refused:
connect
at org.apache.axis2.AxisFault.makeFault(AxisFault.java:430)
at
org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:197)
at org.apache.axis2.transport.http.HTTPSender.send(HTTPSender.java:75)
at
org.apache.axis2.transport.http.CommonsHTTPTransportSender.writeMessageWithCommons(CommonsHTTPTransportSender.java:404)
at
org.apache.axis2.transport.http.CommonsHTTPTransportSender.invoke(CommonsHTTPTransportSender.java:231)
at org.apache.axis2.engine.AxisEngine.send(AxisEngine.java:443)
at
org.apache.axis2.description.OutInAxisOperationClient.send(OutInAxisOperation.java:406)
at
org.apache.axis2.description.OutInAxisOperationClient.executeImpl(OutInAxisOperation.java:229)
at org.apache.axis2.client.OperationClient.execute(OperationClient.java:165)
at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:555)
at org.apache.axis2.client.ServiceClient.sendReceive(ServiceClient.java:531)
at
org.apache.axis2.rpc.client.RPCServiceClient.invokeBlocking(RPCServiceClient.java:102)
at client.client_for_python_soaplib.main(client_for_python_soaplib.java:25)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:519)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
org.apache.commons.httpclient.protocol.ReflectionSocketFactory.createSocket(ReflectionSocketFactory.java:140)
at
org.apache.commons.httpclient.protocol.DefaultProtocolSocketFactory.createSocket(DefaultProtocolSocketFactory.java:125)
at
org.apache.commons.httpclient.HttpConnection.open(HttpConnection.java:707)
at
org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.open(MultiThreadedHttpConnectionManager.java:1361)
at
org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:387)
at
org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171)
at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397)
at
org.apache.axis2.transport.http.AbstractHTTPSender.executeMethod(AbstractHTTPSender.java:621)
at
org.apache.axis2.transport.http.HTTPSender.sendViaPost(HTTPSender.java:193)
... 11 more
Thanks ahead for your time and sprit.
-- Jia Xiaolei
On Tue, Dec 6, 2011 at 10:59 PM, Burak Arslan <burak.arslan(a)arskom.com.tr>wrote:
Hi Jia,
If you need a soap client, just use suds and don't bother with
rpclib/soaplib. It's just incomplete. Currently, the only advantage of
using rpclib as a soap client is its speed and if you need speed that bad,
you should not be using soap (or xml) anyway.
Does this answer your question, or is there any more questions hidden in
the heap below?
best,
burak
On 12/06/11 16:03, 贾晓磊 wrote:
Hi, all:
Recently, I have been do something about python webservice. Above all
the methods of python webservice, soaplib is welcome and popular. When
using soaplib, some problems puzzled me as follows.
porlbem 1: soaplib provide client-side or not？
Usually, I use soaplib as follows:
# file-name: soaplib_server.py:
# -*- coding:utf-8 -*-
from soaplib.wsgi_soap import SimpleWSGISoapApp
from soaplib.service import soapmethod
from soaplib.serializers.clazz import ClassSerializer
from soaplib.serializers.primitive import String, Integer, Array, DateTime
class SMS(ClassSerializer):
class types:
mobile = String
content = String
class SMSService(SimpleWSGISoapApp):
@soapmethod(String, _returns=Array(SMS))
def get_sms(self,id):
sms_lst = []
sms = SMS()
sms.mobile = "13011292217"
sms.content = "hi, it's a test!"
sms_lst.append(sms)
return sms_lst
def make_client():
from soaplib.client import make_service_client
client = make_service_client('http://localhost:7789/' ,SMSService())
return client
if __name__=='__main__':
try:
from wsgiref.simple_server import make_server
server = make_server('localhost', 7789,SMSService())
server.serve_forever()
except ImportError:
print "Error: example server code requires Python >= 2.5"
#file-name: suds_client.py
import suds
def test_soaplib3():
import logging
logging.basicConfig(level=logging.ERROR)
url = "http://localhost:7789/?wsdl"
client = suds.client.Client(url,cache=None)
print 'client', client
output = client.service.get_sms('jia')
print 'output', output
#NOTE: Certainly, it's okay. Below is the output:
#output:
client
Suds ( https://fedorahosted.org/suds/ ) version: 0.3.7 GA build:
R580-20091016
Service ( SMSService ) tns="SMSService.SMSService"
Prefixes (1)
ns0 = "SMSService.SMSService"
Ports (1):
(SMSService)
Methods (1):
get_sms(xs:string id, )
Types (4):
SMS
SMSArray
get_sms
get_smsResponse
output (SMSArray){
_type = "tns:SMSArray"
SMS[] =
(SMS){
content = "hi, it's a test!"
mobile = "13011292217"
},
}
#NOTE: do you find the "def make_client():" in the server-side ? It's no
use when we use suds_client.py. Now, let me talk the problem:
I think soaplib is only a server-side and without client, you also can
find the words as follows in "http://soaplib.github.com/soaplib/2_0/":
"Soaplib is an easy to use Python library for publishing SOAP web services
using WSDL 1.1 standard, and answering SOAP 1.1 requests. With a very small
amount of code, soaplib allows you to write a useful web service and deploy
it as a WSGI application. (Non-WSGI scenarios are also supported.)"
Most of scenes, soaplib make as server and suds did for client. They can
work together well.
In a web page, I found someone use client by soaplib, the client can be
write as follows:
# file-name: soaplib_client.py
# -*- coding:utf-8 -*-
from soaplib_server3 import SMSService
from soaplib_server3 import make_client
import lxml.etree as et
a = make_client()
ret = a.get_sms('jia')
print 'ret:', ret
print 'type of ret:', type(ret)
for i,r in enumerate(ret):
print 'i:',i, r.mobile, r.content
#output:
ret: [<soaplib_server3.SMS object at 0x8ecf7ec>]
type of ret: <type 'list'>
i: 0 13011292217 hi, it's a test!
#NOTE: now, the questions are :
1: Whether soaplib can provide client?
2: If the answer for question 1 is okay, then the second question is : how
to provide a webservice client using soaplib? Is the method "client =
make_service_client('http://localhost:7789/' ,SMSService())" which is be
used in my soaplib_serve.py?
3: if you agree that soaplib can make as websevice client-side, I would
like to ask: The client relays so heavily on sever-side, in the
client-side, it requests some classes or modules in server side are
imported. If we use soaplib-client to invoke a remote server(it may be
developed in Java, C#, php or other language, or python which is not in the
some local), how we get the class in server?
I do not whether i speak my question clearly. In actual fact, what I
eager to know is how to provide a client-side using soaplib if soaplib can.
part 2: Is there someone find it spend much time and not stable to
invoke soaplib using suds as follows.
#NOTE: the code can also be found in "
http://soaplib.github.com/soaplib/2_0/pages/helloworld.html"
# soaplib_server.py
import soaplib
from soaplib.core.service import soap
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
from soaplib.core import Application
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__':
print 'server begin running...'
try:
from wsgiref.simple_server import make_server
soap_application = 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"
# suds.py
import suds
def test_soaplib():
url = "http://localhost:7789/?wsdl"
client = suds.client.Client(url,cache=None)
print 'client', client
output = client.service.say_hello('jia',3)
print 'output', output
when you invoke sus.py , it takes much time and a long time later
returns the right result
”output (stringArray){
string[] =
"Hello, jia",
"Hello, jia",
"Hello, jia",
}
“
or the exception below(it‘s not present exceptions as follows. most of
time it return the result successfully after 2 or 3 minutes).
Traceback (most recent call last):
File "suds_client.py", line 774, in <module>
test_soaplib()
File "suds_client.py", line 627, in test_soaplib
client = suds.client.Client(url,cache=None)
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/client.py",
line 109, in __init__
self.wsdl = Definitions(url, options)
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/wsdl.py",
line 194, in __init__
self.build_schema()
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/wsdl.py",
line 255, in build_schema
self.schema = container.load()
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/xsd/schema.py",
line 90, in load
child.open_imports()
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/xsd/schema.py",
line 277, in open_imports
imported = imp.open()
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/xsd/sxbasic.py",
line 608, in open
result = self.download()
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/xsd/sxbasic.py",
line 628, in download
return self.schema.instance(root, url)
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/xsd/schema.py",
line 367, in instance
return Schema(root, baseurl, self.options)
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/xsd/schema.py",
line 200, in __init__
self.open_imports()
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/xsd/schema.py",
line 277, in open_imports
imported = imp.open()
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/xsd/sxbasic.py",
line 608, in open
result = self.download()
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/xsd/sxbasic.py",
line 626, in download
root = Parser(transport).parse(url=url).root()
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/sax/parser.py",
line 133, in parse
fp = self.transport.open(Request(url))
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/transport/https.py",
line 69, in open
return HttpTransport.open(self, request)
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/transport/http.py",
line 69, in open
fp = self.__open(u2request)
File
"/usr/local/lib/python2.6/dist-packages/suds-0.3.7-py2.6.egg/suds/transport/http.py",
line 107, in __open
return self.urlopener.open(u2request)
File "/usr/lib/python2.6/urllib2.py", line 391, in open
response = self._open(req, data)
File "/usr/lib/python2.6/urllib2.py", line 409, in _open
'_open', req)
File "/usr/lib/python2.6/urllib2.py", line 369, in _call_chain
result = func(*args)
File "/usr/lib/python2.6/urllib2.py", line 1161, in http_open
return self.do_open(httplib.HTTPConnection, req)
File "/usr/lib/python2.6/urllib2.py", line 1134, in do_open
r = h.getresponse()
File "/usr/lib/python2.6/httplib.py", line 986, in getresponse
response.begin()
File "/usr/lib/python2.6/httplib.py", line 391, in begin
version, status, reason = self._read_status()
File "/usr/lib/python2.6/httplib.py", line 355, in _read_status
raise BadStatusLine(line)
# okay, the problem is why sometimes the client return the exception and
most of time return the correct results some minutes later?
Thanks for your time and concentration. Any relay is welcome.
-- Jia Xiaolei
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NAME: 贾晓磊/Jia Xiaolei
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