Question

我正在尝试将文件从客户端（raspberry pi）发送到服务器。但是由于某种原因，我的代码一直在中断。从错误中我得到的问题是，客户端正在读取刚发送给服务器的文件数据。不确定如何解决。

这是我的代码：

# Server
import socket
import sys
import threading

TCP_PORT = 9999
# TCP_IP = "localhost"
TCP_IP = "192.168.0.100"

# all slaves are on the same subnet (192.168.1.1/24)
class send(object):
    def take_picture_request(self, TCP_IP, TCP_PORT):
        s = socket.socket()
        s.connect((TCP_IP, TCP_PORT))
        s.send("1".encode('utf-8'))
        print("Request Sent to: ", str(TCP_IP))

    def recieving_file(self):
        s = socket.socket()
        s.bind(("0.0.0.0", TCP_PORT))
        # s.bind(("192.168.0.109",9999))
        s.listen(100) # Accepting 100 connections
        print("listening on port: 9999")
        i = 1
        while True:
            print("Accepting Connections")
            sc, address = s.accept()
            # print(address)
            sc.recv(1024)

            print (address)
            f = open('file_'+ str(i)+".jpeg",'wb') #open in binary
            i=i+1
            print("Reciving file data")
            while (True):
                # reciving and writing the file
                l = sc.recv(1024)
                f.write(l)

                if not l:
                    break

            f.close()
            sc.close()
            print('copied the file.')


def menu():
    print("MENU")
    print("1 - Take Picture")
    print("2 - Exit")
    ui = input(": ")
    if ui == "1":
        # for i in range(24):# number of ip that you want to send the request to
        #   TCP_IP = "192.168.0.10" + str(i)
            # creates the number of threads needed to send requests to
            # thread = threading.Thread(target=send().take_picture_request(TCP_IP, TCP_PORT), args=(TCP_IP, TCP_PORT,))
            # thread.start()
        send().take_picture_request(TCP_IP, TCP_PORT)
        send().recieving_file()
            # _thread.start_new_thread(send().take_picture_request(TCP_IP, TCP_PORT), ())
    elif ui == "2":
        sys.exit(0)
    else:
        print("Invalid input")
        menu()
menu()

这是客户端的代码＃客户进口插座导入时间从picamera导入PiCamera

# take a picture using the webcam
def take_picture():
        print("Taking Picture")
        with PiCamera() as camera:
                camera.resolution = (1280, 720)
                fname = "/home/pi/" + str(time.time()) + ".jpg"
                print("Saving picture: " + fname)
                camera.capture(fname)
                return fname

# send the picture to the server
def send_file_to_server(fname, TCP_IP, TCP_PORT):
        s = socket.socket()
        s.connect((TCP_IP, TCP_PORT))
        print("Client: Connection Established")
        print("Client: Opening file " + fname + ".jpg")
        f = open(fname, "rb")
        l = f.read(1024)
        while (l):
                print("Client: Sending file to server")
                s.send(l)
                l = f.read(1024)
        s.close()
        print("Client: File " + fname + " sent")

# listens for instructions from the server
def start_listening():
        TCP_PORT = 9999
        # TCP_IP = "localhost"
        TCP_IP = "0.0.0.0"
        s = socket.socket()
        print("Binding to IP and PORT")
        s.bind((TCP_IP, TCP_PORT))
        s.listen(1)
        print("Started Listening")
        while True:
                conn, address = s.accept()
                connection = conn.recv(1024)
                print("Checking for valid response")
                # print(connection)
                if connection.decode('utf-8') == "1":
                        print("Response is valid")
                        fname = take_picture()
                        send_file_to_server(fname, TCP_IP, TCP_PORT)
                        print("Picture Taken and Sent to Server")

def main():
        print("Calling the start_listening function")
        # start_listen for instructions
        start_listening()

main()

提前感谢所有帮助

无法将文件发送到服务器

0 个答案: