當我在windows(同一系統中的客戶端和服務器)運行代碼時,我收到意外的UDP數據包。我的客戶端是用c#編寫的,而服務器是用python編寫的。在我的c#客戶端接收意外的UDP數據包
當我在mac中運行相同的代碼我沒有任何問題,我收到預期的消息(在這裏我打開一個端口在MAC爲udp)。
客戶端(C#):
public static void Main(string[] args)
{
Console.WriteLine("Receiver");
// This constructor arbitrarily assigns the local port number.
UdpClient udpClient = new UdpClient();
//udpClient.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
udpClient.Client.Bind(new IPEndPoint(IPAddress.Any, 137));
try
{
//IPEndPoint object will allow us to read datagrams sent from any source.
IPEndPoint RemoteIpEndPoint = new IPEndPoint(IPAddress.Any, 137);
string message ;
do
{
// Blocks until a message returns on this socket from a remote host.
Byte[] receiveBytes = udpClient.Receive(ref RemoteIpEndPoint);
message = Encoding.ASCII.GetString(receiveBytes);
// Uses the IPEndPoint object to determine which of these two hosts responded.
Console.WriteLine("This is the message you received: " +
message);
//Console.WriteLine("This message was sent from " +
// RemoteIpEndPoint.Address.ToString() +
// " on their port number " +
// RemoteIpEndPoint.Port.ToString());
}
while (message != "exit");
udpClient.Close();
//udpClientB.Close();
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
Console.WriteLine("Press Any Key to Continue");
Console.ReadKey();
}
服務器(蟒-3.6):
import socket
from time import sleep
rx=0 #000
ry=0 #000
rz=0 #000
e=0 #000
UDP_IP = "172.20.10.4"
UDP_PORT = 137
MESSAGE = ""
sock = socket.socket(socket.AF_INET, # Internet
socket.SOCK_DGRAM) # UDP
while(1):
if (rx<360):
rx=rx+1
if ((ry<360) & (rx>=360)):
ry=ry+1
if ((rx>=360) & (ry>=360)):
rx=0
ry=0
if (rz<360):
rz=rz+1
if (rz>=360):
rz = 0
if (e<10):
e=e+1
if(e>=10):
e=0
#verify rx
if (rx<10):
rxs='00'+str(rx)
if ((rx>=10) & (rx<100)):
rxs='0'+str(rx)
if (rx>=100):
rxs=str(rx)
#verify ry
if (ry<10):
rys='00'+str(ry)
if ((ry>=10) & (ry<100)):
rys='0'+str(ry)
if (ry>=100):
rys=str(ry)
#verify rz
if (rz<10):
rzs='00'+str(rz)
if ((rz>=10) & (rx<100)):
rzs='0'+str(rz)
if (rz>=100):
rzs=str(rz)
#verify e
if (e<10):
es='00'+str(e)
if ((e>=10) & (e<100)):
es='0'+str(e)
if (e>=100):
es=str(e)
MESSAGE = 'h'+'01'+'rx'+rxs+'ry'+rys+'rz'+rzs+'e'+es
#sock.sendto(MESSAGE, (UDP_IP, UDP_PORT))
sock.sendto(bytes(MESSAGE, "utf-8"), (UDP_IP, UDP_PORT))
sleep(0.1)
預期消息(ⅰ收到以下MAC):
這是消息你收到:h01rx360ry151rz009e007
我收到以下窗口:
This is the message you received: ?{ EJFDEBFEEBFACACACACACACACACACAAA
有人可以讓我知道我在哪裏出錯了。
在此先感謝
在你的python服務器代碼中執行一些加密計算後,你會執行'bytes(MESSAGE,「utf-8」)''。但在C#客戶端代碼中,將這些字節視爲ascii - 'Encoding.ASCII.GetString(receiveBytes);'。嘗試將其更改爲'Encoding.UTF8.GetString(receiveBytes);' – Evk
我做了更改但未能獲得預期的輸出。:( – renuka
然後確保沒有其他應用程序向該端口發送數據。嘗試使用另一個端口(不要忘了打開它在防火牆) – Evk