我正在测试向外部系统发送一些简单的HTTP请求。虽然我成功地证明了被测试的系统在功能上使用单个消息,当我发送超过20条消息时,我遇到的失败似乎是由于没有接收到的信息,而不是系统本身的问题。
目前,我正在通过UDP发送我的消息,但我想看看这是否导致了退出,因此我想转换为通过TCP发送。
通过UDP发送的代码
@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)
@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()正如您在上面看到的,我已经将对UDP的所有引用更改为TCP,并将Sendto转换为在线阅读后发送,这是通过TCP发送的正确方法。然而,这里似乎缺少了其他东西,因为它现在没有发送任何东西。
关于转换第一个代码块以允许它发送TCP而不是UDP的最佳方法的任何帮助
发布于 2018-07-23 11:55:32
python中的套接字是以linux (查看链接了解更多关于套接字类型的差异和linux )为模型的。
另外,您似乎没有阅读python中的套接字文档,所以请阅读它
现在,对于您的问题,您的问题如下所示,在这两个示例中,您都使用socket.SOCK_DGRAM表示数据记录。它用于像UDP这样的无连接协议。
对于TCP,您需要支持双向可靠的套接字类型(您将知道数据包是否丢失),即SOCK_STREAM。但是因为它是可靠的,所以它必须是有状态的,不能没有连接。
所以你必须
SOCK_STREAM类型创建套接字。# 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()https://stackoverflow.com/questions/51477487
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