我试图做的是相当简单:从客户端发送文件到服务器。首先,客户发送有关文件的信息 - 它的大小是。然后,它发送实际文件。

这是我到目前为止已经完成的:

Server.py

from twisted.internet import reactor, protocol
from twisted.protocols.basic import LineReceiver

import pickle
import sys

class Echo(LineReceiver):

    def connectionMade(self):
        self.factory.clients.append(self)
        self.setRawMode()

    def connectionLost(self, reason):
        self.factory.clients.remove(self)

    def lineReceived(self, data):
        print "line", data

    def rawDataReceived(self, data):
            try:
                obj = pickle.loads(data)
                print obj
            except:
                print data

        #self.transport.write("wa2")

def main():
    """This runs the protocol on port 8000"""
    factory = protocol.ServerFactory()
    factory.protocol = Echo
    factory.clients = []
    reactor.listenTCP(8000,factory)
    reactor.run()

# this only runs if the module was *not* imported
if __name__ == '__main__':
    main()

Client.py

import pickle

from twisted.internet import reactor, protocol
import time
import os.path
from twisted.protocols.basic import LineReceiver

class EchoClient(LineReceiver):

    def connectionMade(self):
        file = "some file that is a couple of megs"
        filesize = os.path.getsize(file)
        self.sendLine(pickle.dumps({"size":filesize}))

        f = open(file, "rb")
        contents = f.read()
        print contents[:20]
        self.sendLine(contents[:20])
        f.close()

#        self.sendLine("hej")
#        self.sendLine("wa")

    def connectionLost(self, reason):
        print "connection lost"

class EchoFactory(protocol.ClientFactory):
    protocol = EchoClient

    def clientConnectionFailed(self, connector, reason):
        print "Connection failed - goodbye!"
        reactor.stop()

    def clientConnectionLost(self, connector, reason):
        print "Connection lost - goodbye!"
        reactor.stop()


# this connects the protocol to a server runing on port 8000
def main():
    f = EchoFactory()
    reactor.connectTCP("localhost", 8000, f)
    reactor.run()

# this only runs if the module was *not* imported
if __name__ == '__main__':
    main()

服务器将仅输出反序列化对象:

{ '尺寸':183574528L}

为什么?发生了什么,从该文件的20个字符我想送?

如果使用“HEJ”和“わ”发送相反,我会得到他们两者(在同一消息中,而不是两次)。

有人?

有帮助吗?

解决方案

您已经设置你的服务器的原始模式setRawMode(),所以回调rawDataReceived被称为与输入数据(不lineReceived)。如果您打印您在rawDataReceived接收到的数据,你看到的一切,包括文件内容,但正如你所说泡菜反序列化的数据,它被忽略了。

你要么改变你将数据发送到服务器的方式(我建议的净字符串格式)或者你通过了泡菜序列化对象里面的内容,并在一个调用做到这一点。

self.sendLine(pickle.dumps({"size":filesize, 'content': contents[:20]}))
许可以下: CC-BY-SA归因
不隶属于 StackOverflow
scroll top