Question

我正在尝试学习一些HTTP / CGI的东西，我想在你的浏览器中查看它时在网页上打印HTML，但我不确定使用套接字库时的正确语法是什么：

#!/usr/bin/env python
import random
import socket
import time

s = socket.socket()         # Create a socket object
host = socket.getfqdn() # Get local machine name
port = 9082
s.bind((host, port))        # Bind to the port

print 'Starting server on', host, port
print 'The Web server URL for this would be http://%s:%d/' % (host, port)

s.listen(5)                 # Now wait for client connection.

print 'Entering infinite loop; hit CTRL-C to exit'
while True:
    # Establish connection with client.    
    c, (client_host, client_port) = s.accept()
    print 'Got connection from', client_host, client_port
    c.send('Server Online\n')
    c.send('HTTP/1.0 200 OK\n')
    c.send('Content-Type: text/html\n')
    c.send(' """\
        <html>
        <body>
        <h1>Hello World</h1> this is my server!
        </body>
        </html>
        """ ')
    c.close()

前三个c.send行有效，然后我输入HTML的最后一行出现语法问题。

Answer 1

使用三引号字符串：

c.send("""
    <html>
    <body>
    <h1>Hello World</h1> this is my server!
    </body>
    </html>
""") # Use triple-quote string.

除语法错误外，代码中还存在多个问题。以下是修改后的版本（仅限循环，请参阅注释以查看所做的修改）

while True:
    # Establish connection with client.    
    c, (client_host, client_port) = s.accept()
    print 'Got connection from', client_host, client_port
    #c.send('Server Online\n') # This is invalid HTTP header
    c.recv(1000) # should receive request from client. (GET ....)
    c.send('HTTP/1.0 200 OK\n')
    c.send('Content-Type: text/html\n')
    c.send('\n') # header and body should be separated by additional newline
    c.send("""
        <html>
        <body>
        <h1>Hello World</h1> this is my server!
        </body>
        </html>
    """) # Use triple-quote string.
    c.close()

通过Python套接字服务器发送HTML

1 个答案: