6.18_web服务器内容

#coding:utf-8
'''
2018-6-18 14:47:23
创建一个静态服务器访问指定页面

http://127.0.0.1:8000/
'''
import socket 

from multiprocessing import Process

HTML_ROOT_DIR = ""

def handle_client(client_socket):
    ''' 处理客户端请求'''
    # 获取客户端请求数据
    request_data = client_socket.recv(1024)
    print("request_data:",request_data)

    # 构造相应数据
    response_start_line = "HTTP/1.1 200 OK\r\n"
    response_headers = "Sever:My server\r\n"
    response_body = "hello itcast"
    response = response_start_line+response_headers+"\r\n"+response_body
    print("response data:",response)
    # 向客户端返回响应数据
    client_socket.send(bytes(reponse,"utf-8"))

    # 关闭客户端连接
    client_socket.close()

def main():
        #tcp socket 服务端
    server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
    server_socket.bind(("",8003))
    server_socket.listen(128)

    while True:
        client_socket,client_address = server_socket.accept()
        print("")
        #创建一个进程
        handle_client_process = Process(target=handle_client,args=(client_socket,))
        handle_client_process.start()
        client_socket.close()

if __name__ == '__main__':
    main()

#coding:utf-8
'''
2018-6-18 18:05:41
创建一个静态服务器访问指定页面

http://127.0.0.1:8000/index.html
'''
import socket
import re
from multiprocessing import Process

# 设置静态文件根目录 常量全大写
HTML_ROOT_DIR = "./html"

def handle_client(client_socket):
    ''' 处理客户端请求'''
    # 获取客户端请求数据
    request_data = client_socket.recv(1024)
    print("request_data:",request_data)
    request_lines = request_data.splitines()
    for line in request_lines:
        print(line)

    #解析请求报文
    # 'GET?HTTP/1.1'
    request_start_line = request_lines[0]
    # 使用正则,拿到 index.html
    file_name = re.match(r"\w+ +(/[^ ]*) ",request_start_line.decode(utf-8)).group(1)

    # 判断反过来写,防止少写一个等号 不可变的写在左边
    if "/" == file_name:
        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 Sever\r\n"
        response_body = "The file is not found!"
    else:
        file_data = file.read().decode("utf-8")
        file.close()
        # 构造相应数据
        response_start_line = "HTTP/1.1 200 OK\r\n"
        response_headers = "Sever:My server\r\n"
        response_body = file_data
    finally:
    response = response_start_line+response_headers+"\r\n"+response_body
    print("response data:",response)

    # 向客户端返回响应数据  python3需要转换成字节
    client_socket.send(bytes(reponse,"utf-8"))

    # 关闭客户端连接
    client_socket.close()

def main():
        #tcp socket 服务端
    server_socket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
    #设置socket参数
    server_socket.setsockopt(socket.SOL_SOCKET,socket.SOL_REUSEADDR,1)
    server_socket.bind(("",8000))
    server_socket.listen(128)

    while True:
        client_socket,client_address = server_socket.accept()
        print("")
        #创建一个进程
        handle_client_process = Process(target=handle_client,args=(client_socket,))
        handle_client_process.start()
        client_socket.close()

if __name__ == '__main__':
    main()