Python 将通过UDP发送的方法改为通过TCP发送
我正在测试向外部系统发送一些简单的HTTP请求。虽然我已经成功地证明了在功能上,当我发送超过20条消息时,被测系统正在处理一条消息,但我得到的失败似乎是由于没有接收到消息,而不是由于系统本身的问题 目前,我正在通过UDP发送消息,但我想知道这是否会导致退出,因此希望转换为通过TCP发送 要通过UDP发送的代码Python 将通过UDP发送的方法改为通过TCP发送,python,tcp,udp,Python,Tcp,Udp,我正在测试向外部系统发送一些简单的HTTP请求。虽然我已经成功地证明了在功能上,当我发送超过20条消息时,被测系统正在处理一条消息,但我得到的失败似乎是由于没有接收到消息,而不是由于系统本身的问题 目前,我正在通过UDP发送消息,但我想知道这是否会导致退出,因此希望转换为通过TCP发送 要通过UDP发送的代码 @when('{number_of_requests} HTTP requests are sent to it') def step_impl(context, number_of_re
@when('{number_of_requests} HTTP requests are sent to it')
def step_impl(context, number_of_requests):
# Waiting for the service to be ready after restart
time.sleep(1)
# Get the Endpoint address and port from Config.py
UDP_IP = config.endpoint['host']
UDP_PORT = int(config.endpoint['port'])
context.messages_sent = []
# Setting up the socket to send the UDP datagrams
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setblocking(True)
# Getting the configured sub id header name
sub_id_header_name = get_subid_header_name()
context.subscribers = generate_subscribers(number_of_requests)
sock.sendto(bytes("xxx", "utf-8"), (UDP_IP, UDP_PORT))
for i in range(int(number_of_requests)):
# Generating a SPID
spid = encodespid("ab")
# Generating a SUB_ID
sub_id = context.subscribers[i]
# Setting up the whole message to be sent
message = small_message.format(spid, sub_id_header_name, sub_id)
# Sending the message
sock.sendto(bytes(message, "utf-8"), (UDP_IP, UDP_PORT))
context.messages_sent.append(spid)
# Closing the socket
sock.close()
通过TCP发送的代码(到目前为止)
正如您在上面看到的,我已经将所有对UDP的引用更改为TCP,并在联机阅读后将Sendto转换为Send。这是通过TCP发送的正确方式。然而,这里似乎还缺少一些东西,因为它现在没有发送任何东西
任何关于转换第一个代码块以允许它发送TCP而不是python中指定的UDP的最佳方法的帮助都是以linux套接字为模型的(查看链接以了解套接字类型的差异以及linux API所说的内容) 另外,看起来您没有阅读python中套接字的文档,所以请阅读 现在我想问你一个问题, 您的问题如下,在这两个示例中,您都使用了表示数据报的
socket.SOCK_DGRAM
。它用于UDP等无连接协议
对于TCP,您需要一种支持双向可靠(您将知道数据包是否丢失)的套接字类型,即SOCK\u STREAM
。但因为它是可靠的,所以它必须是有状态的,不能是无连接的
所以你必须
SOCK\u流
类型创建套接字@when('{number_of_requests} HTTP requests are sent to it')
def step_impl(context, number_of_requests):
# Waiting for the service to be ready after restart
time.sleep(1)
# Get the Endpoint address and port from Config.py
TCP_IP = config.endpoint['host']
TCP_PORT = int(config.endpoint['port'])
context.messages_sent = []
# Setting up the socket to send the UDP datagrams
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.setblocking(True)
# Getting the configured sub id header name
sub_id_header_name = get_subid_header_name()
context.subscribers = generate_subscribers(number_of_requests)
sock.send(bytes("xxx", "utf-8"), (TCP_IP, TCP_PORT))
for i in range(int(number_of_requests)):
# Generating a SPID
spid = encodespid("ab")
# Generating a SUB_ID
sub_id = context.subscribers[i]
# Setting up the whole message to be sent
message = small_message.format(spid, sub_id_header_name, sub_id)
# Sending the message
sock.send(bytes(message, "utf-8"), (TCP_IP, TCP_PORT))
context.messages_sent.append(spid)
# Closing the socket
sock.close()
# create socket of SOCK_STREAM type
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# connect to your server
sock.connect((TCP_IP, TCP_PORT))
# do the sending/receiving part
sock.sendall(b'Hello, world')
data = sock.recv(1024)
# close the connection
s.close()