先上代码
服务端代码
import socket
def start_server():
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host = ""
port = 6666
address = (host, port)
s.bind(address)
s.listen(3)
conn, temp = s.accept()
conn.send("welcome to my server")
#问题在这里,如果客户端没有recv上边服务器发送的welcome to my server,再调用recv就会出错
msg = conn.recv(1024)
print "msg = ", msg
conn.close()
s.close()
if __name__ == "__main__":
start_server()
服务端代码非常简单
然后上客户端代码(先上没问题的)
import socket
def start_client():
conn = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host = socket.gethostname()
port = 6666
address = (host, port)
conn.connect(address)
print "-----------"
print conn.recv(1024) #############注释error#######
conn.close()
if __name__ == "__main__":
start_client()
这样子先开服务端,再开客户端是没问题的。
这时问题来了。如果我把客户端的conn.recv(1024)注释掉,当客户端代码跑完,服务端就会有问题了。
服务端出错提示如下:
Traceback (most recent call last):
File "C:\Program Files (x86)\Adobe\Adobe Flash Builder 4.7\eclipse\dropins\pydev\plugins\org.python.pydev.debug_2.5.0.2012040618\pysrc\pydevd.py", line 1346, in
debugger.run(setup['file'], None, None)
File "C:\Program Files (x86)\Adobe\Adobe Flash Builder 4.7\eclipse\dropins\pydev\plugins\org.python.pydev.debug_2.5.0.2012040618\pysrc\pydevd.py", line 1060, in run
pydev_imports.execfile(file, globals, locals) #execute the script
File "E:\pythonCode\server.py", line 31, in
start_server()
File "E:\pythonCode\server.py", line 24, in start_server
msg = conn.recv(1024)
socket.error: [Errno 10053]
是什么问题呢?
我想了很久,也试过好多测试代码,发觉如果建立连接后,在一端A,先发送一些数据,如果B端没有recv,且当B端连接close的时候。A端因为阻塞在recv部分的代码不是如约的得到空字符串,而是出现了这个报错。我的问题是python写socket编程必须send,recv一一对应使用么???
刚开始学,各位大牛指导下啊