XML-RPC服务器日志记录

Question

我找到了一份关于记录XML-RPC服务器活动的教程，地址在这里：http://code.activestate.com/recipes/496700-logging-simplexmlrpcserver/

我现在遇到的问题是，我想重复使用LoggingSimpleRPCRequestHandler（也就是导入它），但我不知道怎么正确设置'logger'这个变量。我的想法是：

这个是可以工作的（LoggedWork.py）：

from SimpleXMLRPCServer import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler
from SocketServer import ThreadingMixIn

import os, sys
import logging

class RemoteObject:    
    def return10(self):
        return 10

class LoggingSimpleXMLRPCRequestHandler(SimpleXMLRPCRequestHandler): 
    """Overides the default SimpleXMLRPCRequestHander to support logging.  Logs
    client IP and the XML request and response.
    """    

    def do_POST(self):
        clientIP, port = self.client_address
    # Log client IP and Port

        logger.info('Client IP: %s - Port: %s' % (clientIP, port))
        try:
            # get arguments
            data = self.rfile.read(int(self.headers["content-length"]))
            # Log client request
        logger.info('Client request: \n%s\n' % data)

            response = self.server._marshaled_dispatch(
                    data, getattr(self, '_dispatch', None)
                )
        # Log server response
            logger.info('Server response: \n%s\n' % response)

    except: # This should only happen if the module is buggy
            # internal error, report as HTTP server error
            self.send_response(500)
            self.end_headers()
        else:
            # got a valid XML RPC response
            self.send_response(200)
            self.send_header("Content-type", "text/xml")
            self.send_header("Content-length", str(len(response)))
            self.end_headers()
            self.wfile.write(response)

            # shut down the connection
            self.wfile.flush()
            self.connection.shutdown(1)

class ThreadingServer(ThreadingMixIn, SimpleXMLRPCServer):
    pass

if __name__ == "__main__":

    logger = logging.getLogger('Log')
    hdlr = logging.FileHandler('Log.log')
    formatter = logging.Formatter("%(asctime)s  %(levelname)s  %(message)s")
    hdlr.setFormatter(formatter)
    logger.addHandler(hdlr)
    logger.setLevel(logging.INFO)


    serveraddr = ('', 10001)
    srvr       = ThreadingServer(serveraddr, LoggingSimpleXMLRPCRequestHandler)    
    srvr.register_instance(RemoteObject())
    srvr.register_introspection_functions()

    srvr.serve_forever()

而这个就不行（LoggedBroken.py）：

from SimpleXMLRPCServer import SimpleXMLRPCServer, SimpleXMLRPCRequestHandler
from SocketServer import ThreadingMixIn
from  LoggingSimpleXMLRPCRequestHandler import  LoggingSimpleXMLRPCRequestHandler
import os, sys
import logging

class RemoteObject:    
    def return10(self):
        return 10

class ThreadingServer(ThreadingMixIn, SimpleXMLRPCServer):
    pass

if __name__ == "__main__":

    logger = logging.getLogger('Log')
    hdlr = logging.FileHandler('Log.log')
    formatter = logging.Formatter("%(asctime)s  %(levelname)s  %(message)s")
    hdlr.setFormatter(formatter)
    logger.addHandler(hdlr)
    logger.setLevel(logging.INFO)


    serveraddr = ('', 10001)
    srvr       = ThreadingServer(serveraddr, LoggingSimpleXMLRPCRequestHandler)    
    srvr.register_instance(RemoteObject())
    srvr.register_introspection_functions()

    srvr.serve_forever()

如果有更好的方法，请告诉我。谢谢。

-k

Answer 1

好的，我之前没有仔细看你的代码。现在我明白了，在这个结构中，按照我之前提的方案是行不通的。我建议在模块级别准备一个自定义的日志记录器，然后在 LoggingSimpleXMLRPCRequestHandler 中通过名字来获取它。

你在“main”部分已经做了一部分工作：用名字 'Log' 来配置日志记录器。接下来，在 LoggingSimpleXMLRPCRequestHandler 中获取这个日志记录器：

class LoggingSimpleXMLRPCRequestHandler(SimpleXMLRequestHandler):
    def __init__(self):
        self.logger = logging.getLogger('Log')

然后在 LoggingSimpleXMLRPCRequestHandler 的方法中使用 self.logger，而不是直接用 logger。