我要创建的是一组服务器和客户端脚本;服务器脚本会提示用户输入原始输入,并将该输入存储在字典中,然后使用json.dumps()
函数将其转换为json。然后将转换后的字典存储在jasonFile
变量中,然后将其发送给客户端。 json字典正在运行,但我正在努力解决网络方面的问题。
这是我的服务器代码:
def Main():
host = '0.0.0.0'
port = 5000
s.bind((host, port))
s.listen(5)
print "Server Started"
while True:
addr = s.accept()
print "Client Connected from IP: " + str(addr)
serverMessage = "Connection Established: Would you like to download the Json dictionary?"
s.send(serverMessage)
clientReply = s.recv(1024)
if clientReply in ['Y', 'y', 'Yes', 'yes', 'YES']:
s.send(jasonFile)
s.close()
else:
print "Connection from " + addr + " closed!"
s.send("Connection Error!")
s.close()
这是我的客户代码:
def Main():
host = raw_input("Please enter the server IP you wish to connect to: ")
port = 5000
#define client to use socket module to connect via IPV4 and TCP only
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client.connect((host, port))
serverMessage = client.recv(1024)
print serverMessage
clientReply = raw_input("Type 'Yes' To download dictionary")
if clientReply in ['Y', 'Yes', 'y', 'yes', 'YES']:
client.send(clientReply)
jasonRecv = client.recv(1024)
print jasonRecv
else:
client.close()
print "Disconnected from server!"
到目前为止,我还没有将json数据转换回客户端上的字符串,因为服务器在客户端尝试连接时向我抛出错误。
我从IDLE收到的错误消息是:
Server Started
Client Connected from IP: (<socket._socketobject object at 0x000000000401E048>, ('127.0.0.1', 34375))
Traceback (most recent call last): File "D:/Server.py", line 105, in <module>
Main()
File "D:/Server.py", line 94, in Main
s.send(serverMessage)
error: [Errno 10057] A request to send or receive data was disallowed because the socket is not connected and (when sending on a datagram socket using a sendto call) no address was supplied
我以为我在addr
变量中定义了向其发送数据的地址,但是显然没有?
答案 0 :(得分:0)
尝试:
conn, addr = s.accept()
...
conn.send(serverMessage)
即将s.
调用替换为conn.
,该调用代表客户端接受的套接字连接。
socket.accept()
接受连接。套接字必须绑定到一个地址并监听连接。 返回值是一对(conn,地址),其中conn是新的套接字 可用于在连接上发送和接收数据的对象以及地址 是绑定到连接另一端套接字的地址。
示例在页面末尾提供。