python实现简单xml-rpc服务器

以下程序均来自《Python.UNIX和Linux系统管理指南》

XML-RPC在两个进程之间交换指定格式的XML文档，以实现远程过程调用，还有一个更加高级的工具Pyro,由于现在的版本是Pyro4与书中所使用的版本有很大差异，等有时间再去研究一下

xml_rpc_server.py
#!/usr/bin/en python
import SimpleXMLRPCServer
import os
def ls(directory):
        try:
                return os.listdir(directory)
        except OSError:
                return []
def ls_boom(directory):
        return os.listdir(directory)
def cb(obj):
        print "OPBJECT::", obj
        print "OBJECT.__class__::", obj.__class__
        return obj.cb()
if __name__ == '__main__':
        s = SimpleXMLRPCServer.SimpleXMLRPCServer(('127.0.0.1', 8765))
        s.register_function(ls)
        s.register_function(ls_boom)
        s.register_function(cb)
        s.serve_forever()

运行结果：

服务端

[root@centos python]# python xml_rpc_server.py

127.0.0.1 - - [19/Jun/2013 12:04:05] "POST /RPC2 HTTP/1.1" 200 -

127.0.0.1 - - [19/Jun/2013 12:04:19] "POST /RPC2 HTTP/1.1" 200 -

127.0.0.1 - - [19/Jun/2013 12:04:36] "POST /RPC2 HTTP/1.1" 200 -

127.0.0.1 - - [19/Jun/2013 12:04:50] "POST /RPC2 HTTP/1.1" 200 -

客户端

[root@centos python]# python

Python 2.7.5 (default, Jun 19 2013, 07:19:44)

[GCC 4.1.2 20080704 (Red Hat 4.1.2-52)] on linux2

Type "help", "copyright", "credits" or "license" for more information.

>>> import xmlrpclib

>>> x = xmlrpclib.ServerProxy('http://localhost:8765')

>>> x.ls('.')

['check_web.py', 'ftp_client.py', 'helloworld.pdf', 'email_attachment.py', 'sendemail.py', 'pdf.py', 'xml_rpc_server.py', 'diskreport.py', 'httplib_check_web.py', 'check_tcp_port.py', 'disk_report.pdf']

>>> x.ls_boom('.')

['check_web.py', 'ftp_client.py', 'helloworld.pdf', 'email_attachment.py', 'sendemail.py', 'pdf.py', 'xml_rpc_server.py', 'diskreport.py', 'httplib_check_web.py', 'check_tcp_port.py', 'disk_report.pdf']

>>> x.ls('/foo')

[]

>>> x.ls_boom('/foo')

Traceback (most recent call last):

 File "<stdin>", line 1, in <module>

 File "/usr/local/python27/lib/python2.7/xmlrpclib.py", line 1224, in __call__

   return self.__send(self.__name, args)

 File "/usr/local/python27/lib/python2.7/xmlrpclib.py", line 1578, in __request

   verbose=self.__verbose

 File "/usr/local/python27/lib/python2.7/xmlrpclib.py", line 1264, in request

   return self.single_request(host, handler, request_body, verbose)

 File "/usr/local/python27/lib/python2.7/xmlrpclib.py", line 1297, in single_request

   return self.parse_response(response)

 File "/usr/local/python27/lib/python2.7/xmlrpclib.py", line 1473, in parse_response

   return u.close()

 File "/usr/local/python27/lib/python2.7/xmlrpclib.py", line 793, in close

   raise Fault(**self._stack[0])

xmlrpclib.Fault: <Fault 1: "<type 'exceptions.OSError'>:[Errno 2] No such file or directory: '/foo'">