1.处理客户端请求数据
>>> s = "GET / HTTP/1.1\r\nHost: 127.0.0.1:8080\r\nConnection: keep-alive"
>>> s.splitlines()
['GET / HTTP/1.1', 'Host: 127.0.0.1:8080', 'Connection: keep-alive']
#-*- coding:utf-8 -*-
import socket
#空行
from multiprocessing import Process # 设置静态文件根目录
HTML_ROOT_DIR = "./html" #常量全部要大写 #函数上面有空行2行
def hand_client(client_socket):
"""处理客户端请求""" #推荐""""""
# 获取客户端请求数据
request_data = client_socket.recv(1024)
print("request_data:",request_data) request_data = request_data.decode("utf-8")
request_lines = request_data.splitlines() print(request_lines)
for line in request_lines:
print(line) # 构造响应数据 # 空一格在加注释
response_start_line = "HTTP/1.1 200 OK \r\n"
response_headers = "Server: My server\r\n"
response_body = "hello world"
response = response_start_line + response_headers + "\r\n" +response_body
print("response:",response) # 向客户端返回相应数据
client_socket.send(bytes(response,"utf-8")) # 关闭客户端连接
client_socket.close() if __name__ == "__main__":
#AF_INET 是个常量
server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server_socket.bind(("",8080))
server_socket.listen(128) while True:
client_socket, client_address = server_socket.accept() #赋值的时候有空格
print("[%s,%s]用户连接上了"%client_address)
hand_client_process = Process(target=hand_client,args=(client_socket,))
#=函数名 不能有空格
hand_client_process.start()
client_socket.close() #多进程会复制 client_socket
2.正则匹配
>>> s
'GET /favicon.ico HTTP/1.1'
>>> re.match(r"\w+ +(/[^ ]*)",s).group(1)
'/favicon.ico'
#-*- coding:utf-8 -*-
import socket
import re
#空行
from multiprocessing import Process # 设置静态文件根目录
HTML_ROOT_DIR = "./html" #常量全部要大写 #函数上面有空行2行
def hand_client(client_socket):
"""处理客户端请求""" #推荐""""""
# 获取客户端请求数据
request_data = client_socket.recv(1024)
print("request_data:",request_data)
request_data = request_data.decode("utf-8")
request_lines = request_data.splitlines()
print(request_lines) # 解析请求报文
for line in request_lines:
print(line)
# GET /favicon.ico HTTP/1.1
request_start_line = request_lines[0]
# 提取用户请求的文件名
file_name = re.match(r"\w+ +(/[^ ]*)", request_start_line).group(1)
print(file_name) # 构造响应数据 # 空一格在加注释
response_start_line = "HTTP/1.1 200 OK \r\n"
response_headers = "Server: My server\r\n"
response_body = "hello world"
response = response_start_line + response_headers + "\r\n" +response_body
print("response:",response) # 向客户端返回相应数据
client_socket.send(bytes(response,"utf-8")) # 关闭客户端连接
client_socket.close() if __name__ == "__main__":
#AF_INET 是个常量
server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server_socket.bind(("",8080))
server_socket.listen(128) while True:
client_socket, client_address = server_socket.accept() #赋值的时候有空格
print("[%s,%s]用户连接上了"%client_address)
hand_client_process = Process(target=hand_client,args=(client_socket,))
#=函数名 不能有空格
hand_client_process.start()
client_socket.close() #多进程会复制 client_socket
3. 打开文件读取内容，抛出异常
#-*- coding:utf-8 -*-
import socket
import re
#空行
from multiprocessing import Process # 设置静态文件根目录
HTML_ROOT_DIR = "./html" #常量全部要大写 #函数上面有空行2行
def hand_client(client_socket):
"""处理客户端请求""" #推荐""""""
# 获取客户端请求数据
request_data = client_socket.recv(1024)
print("request_data:",request_data)
request_data = request_data.decode("utf-8")
request_lines = request_data.splitlines()
print(request_lines) # 解析请求报文
for line in request_lines:
print(line)
# GET /favicon.ico HTTP/1.1
request_start_line = request_lines[0]
# 提取用户请求的文件名
file_name = re.match(r"\w+ +(/[^ ]*)", request_start_line).group(1)
print(file_name) # 打开文件读取内容
file = open(HTML_ROOT_DIR + file_name,"rb")
file_data = file.read()
file.close() # 构造响应数据 # 空一格在加注释
response_start_line = "HTTP/1.1 200 OK \r\n"
response_headers = "Server: My server\r\n"
response_body = file_data
response = response_start_line + response_headers + "\r\n" + response_body
print("response:",response) # 向客户端返回相应数据
client_socket.send(bytes(response,"utf-8")) # 关闭客户端连接
client_socket.close() if __name__ == "__main__":
#AF_INET 是个常量
server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server_socket.bind(("",8080))
server_socket.listen(128) while True:
client_socket, client_address = server_socket.accept() #赋值的时候有空格
print("[%s,%s]用户连接上了"%client_address)
hand_client_process = Process(target=hand_client,args=(client_socket,))
#=函数名 不能有空格
hand_client_process.start()
client_socket.close() #多进程会复制 client_socket
4.抛出文件异常,修改字符编码
- 重用端口
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# 修改参数 #级别 socket #重用地址 #1
#-*- coding:utf-8 -*-
import socket
import re
#空行
from multiprocessing import Process # 设置静态文件根目录
HTML_ROOT_DIR = "./html" #常量全部要大写 #函数上面有空行2行
def hand_client(client_socket):
"""处理客户端请求""" #推荐""""""
# 获取客户端请求数据
request_data = client_socket.recv(1024)
print("request_data:",request_data)
request_data = request_data.decode("utf-8")
request_lines = request_data.splitlines()
print(request_lines) # 解析请求报文
for line in request_lines:
print(line)
# GET /favicon.ico HTTP/1.1
request_start_line = request_lines[0]
# 提取用户请求的文件名
file_name = re.match(r"\w+ +(/[^ ]*)", request_start_line).group(1)
print(file_name) # 打开文件读取内容
try :
file = open(HTML_ROOT_DIR + file_name,"rb")
except IOError:
response_start_line = "HTTP/1.1 404 Not found \r\n"
response_headers = "Server: My server\r\n"
response_body = "the file is not found"
else:
file_data = file.read()
file.close() # 构造响应数据 # 空一格在加注释
response_start_line = "HTTP/1.1 200 OK \r\n"
response_headers = "Server: My server\r\n"
response_body = file_data.decode("utf-8") response = response_start_line + response_headers + "\r\n" + response_body
print("response:",response) # 向客户端返回相应数据
client_socket.send(bytes(response,"utf-8")) # 关闭客户端连接
client_socket.close() if __name__ == "__main__":
#AF_INET 是个常量
server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server_socket.bind(("",8080))
server_socket.listen(128) while True:
client_socket, client_address = server_socket.accept() #赋值的时候有空格
print("[%s,%s]用户连接上了"%client_address)
hand_client_process = Process(target=hand_client,args=(client_socket,))
#=函数名 不能有空格
hand_client_process.start()
client_socket.close() #多进程会复制 client_socket
5.主页优化
if "/" == file_name : # 常量放在等号的左边
file_name = "/index.html"
6.完整版
#-*- coding:utf-8 -*-
import socket
import re
#空行
from multiprocessing import Process # 设置静态文件根目录
HTML_ROOT_DIR = "./html" #常量全部要大写 #函数上面有空行2行
def hand_client(client_socket):
"""处理客户端请求""" #推荐""""""
# 获取客户端请求数据
request_data = client_socket.recv(1024)
print("request_data:",request_data)
request_data = request_data.decode("utf-8")
request_lines = request_data.splitlines()
print(request_lines) # 解析请求报文
for line in request_lines:
print(line)
# GET /favicon.ico HTTP/1.1
request_start_line = request_lines[0]
# 提取用户请求的文件名
file_name = re.match(r"\w+ +(/[^ ]*)", request_start_line).group(1)
print(file_name) if "/" == file_name : # 常量放在等号的左边
file_name = "/index.html" # 打开文件读取内容
try :
file = open(HTML_ROOT_DIR + file_name,"rb")
except IOError:
response_start_line = "HTTP/1.1 404 Not found \r\n"
response_headers = "Server: My server\r\n"
response_body = "the file is not found"
else:
file_data = file.read()
file.close() # 构造响应数据 # 空一格在加注释
response_start_line = "HTTP/1.1 200 OK \r\n"
response_headers = "Server: My server\r\n"
response_body = file_data.decode("utf-8") response = response_start_line + response_headers + "\r\n" + response_body
print("response:",response) # 向客户端返回相应数据
client_socket.send(bytes(response,"utf-8")) # 关闭客户端连接
client_socket.close() if __name__ == "__main__":
#AF_INET 是个常量
server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server_socket.bind(("",8080))
server_socket.listen(128) while True:
client_socket, client_address = server_socket.accept() #赋值的时候有空格
print("[%s,%s]用户连接上了"%client_address)
hand_client_process = Process(target=hand_client,args=(client_socket,))
#=函数名 不能有空格
hand_client_process.start()
client_socket.close() #多进程会复制 client_socket