Question

我在PC上访问了树莓派（Windows 10）。服务器正在树莓派上运行，我想从PC（客户端在我的PC上运行，而不是在树莓派上）向服务器发送数据。

client.py

import socket
mysoc=socket.socket()
mysoc.connect(("xxx.xxx.xxx.xxx",1234))     //ip address of raspberrypi
while 1:
    s=input("Enter command")
    mysoc.sendall(s.encode())
    if s==exit:
        break
mysoc.close()

server.py

import socket
from gpiozero import LED
led=LED(17)

server_soc=socket.socket()
server_soc.bind(("",1234))
server_soc.listen(5)
print("Listening to client ...")
conn,addr=server_soc.accept()
print("connected to client:",addr)
while 1:
        data=conn.recv(1024)
        print(data)
        if data==b"on\n":
            print("LED is on")
            led.on()
        elif data==b"off\n":
            print("LED is off")
            led.off()
        else:
            break       
conn.close()
server_soc.close()

执行client.py时出现以下错误。

>>> 
= RESTART: C:\Users\Lenovo\AppData\Local\Programs\Python\Python38-32\My_Programs\client.py
Enter commandon
Enter commandoff
Enter commandon
Traceback (most recent call last):
  File "C:\Users\Lenovo\AppData\Local\Programs\Python\Python38-32\My_Programs\client.py", line 7, in <module>
    mysoc.sendall(s.encode())
ConnectionAbortedError: [WinError 10053] An established connection was aborted by the software in your host machine
>>>

server.py

>>> %Run server_control_led.py
Listening to client ...
connected to client: ('xxx.xxx.xxx.x', 50603)   //ip address of my pc
b'on'
>>>

The server receives the first data and stops listening.
I tried to disable antivirus and firewall but the issue still exists.
I unable to figure the root cause of this closing connection. whether issue is on the server side or client-side.
I am using putty and xming server and python code. I tried doing some changes in inbound and outbound rules in the firewall but still doesn't work.
what should be configured?

Answer 1

您应该在客户的第6行中指定加密的类型。您应该使用mysoc.sendall(s.encode())而不是mysoc.sendall(s.encode('utf-8'))。如果您不想使用utf-8，则可以始终传递其他编码方法，例如ascii。 -更新。在第7行中还有另一个错误，您尝试将s与字符串进行比较，但忘了加上引号：您的代码： if s==exit: 更正： if s=="exit":

-Update＃2：我刚刚发现了实际的错误：您没有在服务器端正确解码字符串，因此条件语句不会将命令标识为“ on”或“ off”，而是某种形式否则，这就是服务器在收到第一条消息后退出的原因。这是固定代码：（服务器）

import socket
server_soc=socket.socket()
server_soc.bind(("",1234))
server_soc.listen(5)
print("Listening to client ...")
conn,addr=server_soc.accept()
print("connected to client:",addr)
while 1:
        data=conn.recv(1024)
        print(data)
        data=data.decode('utf-8')
        if data=="on":
            print("LED is on")
        elif data=="off":
            print("LED is off")
        else:
            break       
conn.close()
server_soc.close()

（客户）

import socket
mysoc=socket.socket()
mysoc.connect(("127.0.0.1",1234))
s=""
while s!="exit":
    s=input("Enter command")
    mysoc.sendall(s.encode('utf-8'))
mysoc.close()

（我删除了所有与LED相关的命令，以便能够在计算机中运行脚本，您必须将它们再次添加到代码中。）

python客户端服务器应用程序

1 个答案: