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Python编写http-server
01-返回固定页面的数据
import socket
def handle_client_request(n_socket, client_ip_port):
# 5. 接收信息(请求报文)
buf = n_socket.recv(4096) # buf 是请求报文
if buf:
print(buf.decode())
# 6. 发送信息(响应报文)
# 6.1 响应行
response_line = 'HTTP/1.1 200 OK\r\n'
# 6.2 响应头
response_header = 'Server:PY\r\nName:Py42\r\n'
# 6.3 空行 \r\n
# 6.4 响应体(具体的页面数据), 返回 index.html 的页面
f = open('static/index.html', 'rb') # 读取到是 bytes 类型
data = f.read()
f.close()
# 合成响应体
response = (response_line + response_header + '\r\n').encode() + data
n_socket.send(response)
else:
print(f'{client_ip_port} 下线了....')
# 7. 关闭连接
n_socket.close()
if __name__ == '__main__':
# 1. 创建 socket 对象
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 设置端口复用
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
# 2. 绑定 IP 和端口
server_socket.bind(("", 8989))
# 3. 设置监听
server_socket.listen(128)
# 4. 阻塞等待客户端的链接
while True:
new_socket, ip_port = server_socket.accept()
print(f'{ip_port} 连接了....')
handle_client_request(new_socket, ip_port)
server_socket.close()
02-返回指定也页面
import socket
def handle_client_request(n_socket, client_ip_port):
# 5. 接收信息(请求报文)
buf = n_socket.recv(4096) # buf 是请求报文
if buf:
# print(buf.decode())
buf = buf.decode()
file_name = buf.split(' ', 2)[1]
print(f'请求的资源为: {file_name}')
if file_name == '/':
file_name = '/index.html'
# 6. 发送信息(响应报文)
# 6.1 响应行
response_line = 'HTTP/1.1 200 OK\r\n'
# 6.2 响应头
response_header = 'Server:PY\r\nName:Py42\r\n'
# 6.3 空行 \r\n
# 6.4 响应体(具体的页面数据), 返回 index.html 的页面
f = open('static' + file_name, 'rb') # 读取到是 bytes 类型
data = f.read()
f.close()
# 合成响应体
response = (response_line + response_header + '\r\n').encode() + data
n_socket.send(response)
else:
print(f'{client_ip_port} 下线了....')
# 7. 关闭连接
n_socket.close()
if __name__ == '__main__':
# 1. 创建 socket 对象
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 设置端口复用
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
# 2. 绑定 IP 和端口
server_socket.bind(("", 8989))
# 3. 设置监听
server_socket.listen(128)
# 4. 阻塞等待客户端的链接
while True:
new_socket, ip_port = server_socket.accept()
print(f'{ip_port} 连接了....')
handle_client_request(new_socket, ip_port)
server_socket.close()
03-处理不存在的页面请求
import socket
def handle_client_request(n_socket, client_ip_port):
# 5. 接收信息(请求报文)
buf = n_socket.recv(4096) # buf 是请求报文
if buf:
# print(buf.decode())
buf = buf.decode()
file_name = buf.split(' ', 2)[1]
print(f'请求的资源为: {file_name}')
if file_name == '/':
file_name = '/index.html'
# 6. 发送信息(响应报文)
# 6.1 响应行
response_line = 'HTTP/1.1 200 OK\r\n'
# 6.2 响应头
response_header = 'Server:PY\r\nName:Py42\r\n'
# 6.3 空行 \r\n
# 6.4 响应体(具体的页面数据), 返回 index.html 的页面
try:
f = open('static' + file_name, 'rb') # 读取到是 bytes 类型
data = f.read()
f.close()
except FileNotFoundError:
f = open('static/error.html', 'rb')
data = f.read()
f.close()
response_line = 'HTTP/1.1 404 NOT FOUND\r\n'
# 合成响应体
response = (response_line + response_header + '\r\n').encode() + data
n_socket.send(response)
else:
print(f'{client_ip_port} 下线了....')
# 7. 关闭连接
n_socket.close()
if __name__ == '__main__':
# 1. 创建 socket 对象
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 设置端口复用
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
# 2. 绑定 IP 和端口
server_socket.bind(("", 8989))
# 3. 设置监听
server_socket.listen(128)
# 4. 阻塞等待客户端的链接
while True:
new_socket, ip_port = server_socket.accept()
print(f'{ip_port} 连接了....')
handle_client_request(new_socket, ip_port)
server_socket.close()
04-静态 web 服务器-多任务版
import socket
import threading
def handle_client_request(n_socket, client_ip_port):
# 5. 接收信息(请求报文)
buf = n_socket.recv(4096) # buf 是请求报文
if buf:
# print(buf.decode())
buf = buf.decode()
file_name = buf.split(' ', 2)[1]
print(f'请求的资源为: {file_name}')
if file_name == '/':
file_name = '/index.html'
# 6. 发送信息(响应报文)
# 6.1 响应行
response_line = 'HTTP/1.1 200 OK\r\n'
# 6.2 响应头
response_header = 'Server:PY\r\nName:Py42\r\n'
# 6.3 空行 \r\n
# 6.4 响应体(具体的页面数据), 返回 index.html 的页面
try:
f = open('static' + file_name, 'rb') # 读取到是 bytes 类型
data = f.read()
f.close()
except FileNotFoundError:
f = open('static/error.html', 'rb')
data = f.read()
f.close()
response_line = 'HTTP/1.1 404 NOT FOUND\r\n'
# 合成响应体
response = (response_line + response_header + '\r\n').encode() + data
n_socket.send(response)
else:
print(f'{client_ip_port} 下线了....')
# 7. 关闭连接
n_socket.close()
if __name__ == '__main__':
# 1. 创建 socket 对象
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 设置端口复用
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
# 2. 绑定 IP 和端口
server_socket.bind(("", 8989))
# 3. 设置监听
server_socket.listen(128)
# 4. 阻塞等待客户端的链接
while True:
new_socket, ip_port = server_socket.accept()
print(f'{ip_port} 连接了....')
sub_thread = threading.Thread(target=handle_client_request, args=(new_socket, ip_port))
sub_thread.start()
server_socket.close()
05-静态 web服务器-面向对象版
import socket
import threading
class HTTPWebServer(object):
def __init__(self):
self.server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.server_socket.bind(('', 9090))
self.server_socket.listen(128)
def __del__(self):
self.server_socket.close()
def start(self):
while True:
new_socket, ip_port = self.server_socket.accept()
print(f'{ip_port} 连接了.....')
sub_thread = threading.Thread(target=self.handle_client_request, args=(new_socket, ip_port))
sub_thread.start()
@staticmethod
def handle_client_request(n_socket, client_ip_port):
# 接收请求报文
buf = n_socket.recv(4096)
if buf:
buf = buf.decode() # 转换为 str
# 解析资源路径
file_name = buf.split(' ', 2)[1]
print(f"请求的资源未: {file_name}")
if file_name == '/':
file_name = '/index.html'
# 6.1 响应行
response_line = 'HTTP/1.1 200 OK\r\n'
# 6.2 响应头
response_header = 'Server:PY\r\nName:Py42\r\n'
# 6.3 空行 \r\n
# 6.4 响应体(具体的页面数据), 返回 index.html 的页面
try:
f = open('static' + file_name, 'rb') # 读取到是 bytes 类型
data = f.read()
f.close()
except FileNotFoundError:
f = open('static/error.html', 'rb')
data = f.read()
f.close()
response_line = 'HTTP/1.1 404 NOT FOUND\r\n'
# 合成响应体
response = (response_line + response_header + '\r\n').encode() + data
n_socket.send(response)
else:
print(f"{client_ip_port} 关闭了")
n_socket.close()
if __name__ == '__main__':
# 1. 创建服务器对象
web = HTTPWebServer()
# 2. 启动服务器
web.start()
06-python 获取终端命令的参数
"""
命令 参数 参数
python3 xxx.py 9898
需求: 获取参数
"""
import sys
# sys.argv 类型是列表:
print(sys.argv)
07-命令行指定端口启动
import socket
import threading
import sys
class HTTPWebServer(object):
def __init__(self, port):
self.server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, True)
self.server_socket.bind(('', port))
self.server_socket.listen(128)
def __del__(self):
self.server_socket.close()
def start(self):
print('服务已启动,等待客户端连接....')
while True:
new_socket, ip_port = self.server_socket.accept()
print(f'{ip_port} 连接了.....')
sub_thread = threading.Thread(target=self.handle_client_request, args=(new_socket, ip_port))
sub_thread.start()
@staticmethod
def handle_client_request(n_socket, client_ip_port):
# 接收请求报文
buf = n_socket.recv(4096)
if buf:
buf = buf.decode() # 转换为 str
# 解析资源路径
file_name = buf.split(' ', 2)[1]
print(f"请求的资源未: {file_name}")
if file_name == '/':
file_name = '/index.html'
# 6.1 响应行
response_line = 'HTTP/1.1 200 OK\r\n'
# 6.2 响应头
response_header = 'Server:PY\r\nName:Py42\r\n'
# 6.3 空行 \r\n
# 6.4 响应体(具体的页面数据), 返回 index.html 的页面
try:
f = open('static' + file_name, 'rb') # 读取到是 bytes 类型
data = f.read()
f.close()
except FileNotFoundError:
f = open('static/error.html', 'rb')
data = f.read()
f.close()
response_line = 'HTTP/1.1 404 NOT FOUND\r\n'
# 合成响应体
response = (response_line + response_header + '\r\n').encode() + data
n_socket.send(response)
else:
print(f"{client_ip_port} 关闭了")
n_socket.close()
if __name__ == '__main__':
# print('使用方法: python xxx.py 端口号')
# 获取命令行参数
buf = sys.argv
if len(buf) == 2:
# 代表有两个参数
port = int(buf[1])
else:
port = 8888
print('使用的端口号是:', port)
# 1. 创建服务器对象
web = HTTPWebServer(port)
# 2. 启动服务器
web.start()