使用Python日志记录套接字处理程序收到的奇怪字符

Question

我正在使用python（2.7），需要将消息记录到远程服务器。 我正在使用logging.handlers库，但是消息变得奇怪了。 现在，我正在使用python文档网站上提供的SocketServer代码。

import logging
import logging.handlers

class TestMan():
    def __init__(self,xmlString):

        formatter = logging.Formatter('%(levelname)s : %(name)s - %(asctime)s - %(message)s')

        logging.basicConfig(filename='test.log',level=logging.DEBUG,format='%(levelname)s : %(name)s - %(asctime)s - %(message)s')
        log = logging.getLogger(__name__)

        socket = logging.handlers.SocketHandler('localhost',1030)
        socket.setLevel(logging.INFO)
        socket.setFormatter(formatter)

        log.addHandler(socket)
        log.info("Starting Test")

收到以下消息（无法粘贴文本，因此进行了屏幕截图）

http://i.imgur.com/W65K6iC.png

服务器代码：

import SocketServer

class MyTCPHandler(SocketServer.BaseRequestHandler):
    """
    The RequestHandler class for our server.

    It is instantiated once per connection to the server, and must
    override the handle() method to implement communication to the
    client.
    """

    def handle(self):
        # self.request is the TCP socket connected to the client
        self.data = self.request.recv(1024).strip()
        print "{} wrote:".format(self.client_address[0])
        print self.data
        # just send back the same data, but upper-cased
        self.request.sendall(self.data.upper())

if __name__ == "__main__":
    HOST, PORT = "localhost", 1030

    # Create the server, binding to localhost on port 9999
    server = SocketServer.TCPServer((HOST, PORT), MyTCPHandler)

    # Activate the server; this will keep running until you
    # interrupt the program with Ctrl-C
    server.serve_forever()

Answer 1

由SocketHandlers发送的数据在发送之前先经过腌制。

https://docs.python.org/2/library/logging.handlers.html#logging.handlers.SocketHandler

generate（）腌制记录的属性字典，并将其以二进制格式写入套接字。 如果套接字有错误，请静默丢弃数据包。 如果以前丢失了连接，请重新建立连接。 要将接收端的记录释放到LogRecord中，请使用makeLogRecord（）函数。