Ruby TCP 套接字永远不会得到回复
我使用 TCP 连接并发送一些数据，如下所示：
begin
session = "mysession"
socket = TCPSocket.new(tcpaddress, port)
socket.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_NODELAY, 1)
puts "sending to socket HELO " + session
socket.write ('HELO ' + session)
puts socket.read
socket.close
rescue Exception => myException
puts "Exception rescued : #{myException}"
end
套接字永远不会收到回复，但是 telnet 会收到回复：
$ telnet some_ip port
Trying some_ip...
Connected to some_ip
Escape character is '^]'.
HELO mysession
OK
正如您所看到的，远程服务器按预期回复“OK”。怎么了？
PS：我也使用过 put 和 send 方法。
I use a TCP connection and send some data like this:
begin
session = "mysession"
socket = TCPSocket.new(tcpaddress, port)
socket.setsockopt(Socket::IPPROTO_TCP, Socket::TCP_NODELAY, 1)
puts "sending to socket HELO " + session
socket.write ('HELO ' + session)
puts socket.read
socket.close
rescue Exception => myException
puts "Exception rescued : #{myException}"
end
The socket never gets a reply, however, telnet does:
$ telnet some_ip port
Trying some_ip...
Connected to some_ip
Escape character is '^]'.
HELO mysession
OK
As you can see the remote server replies "OK" as expected. What's wrong?
PS: I have used puts and send methods also.
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也许您需要在命令中添加 CRLF：
Perhaps you need to add CRLF to the command: