Python 实现一个简单的web服务器
import re
import socket
def service_cilent(new_socket):
request = new_socket.recv(1024).decode("utf-8")
# Python splitlines() 按照行('\r', '\r\n', \n')分隔,返回一个包含各行作为元素的列表,如果参数 keepends 为 False,不包含换行符,如果为 True,则保留换行符。
request_lines = request.splitlines()
print(request_lines)
file_name = ""
ret = re.match(r"[^/]+(/[^ ]*)", request_lines[0])
if ret:
file_name = ret.group(1)
if file_name == "/":
file_name = "index.html"
try:
f = open(file_name, "rb")
except:
response = "HTTP/1.1 404 NOT FOUND\r\n\r\n"
response += "------file not found-----"
new_socket.send(response.encode("utf-8"))
else:
# 打开文件成功就读文件 然后关闭文件指针
html_content = f.read()
f.close()
# 准备发送给浏览器的数据---header
response = "HTTP/1.1 200 OK\r\n\r\n"
# 将response header发送给浏览器
new_socket.send(response.encode("utf-8"))
# 将response body发送给浏览器
new_socket.send(html_content)
# 关闭套接字
new_socket.close()
def main():
# 创建套接字
tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# tcp_server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
# 绑定
tcp_server_socket.bind(("", 7089))
# 监听套接字
tcp_server_socket.listen(128)
while True:
new_socket, cilent_addr = tcp_server_socket.accept()
service_cilent(new_socket)
# 关闭监听套接字
tcp_server_socket.close()
if __name__ == '__main__':
main()
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