2 web服务器案例

1.老师给的思路

#tcp socket 服务端

socket = socket.socket()
socket.bind()
socket.listen()
client_socket = socket.accept()

while True:
    p = Process(target=fun, args=())
    p.start()
    client_socket.close()

def fun(client_socket):

    #接受数据
        #request_data = recv(1024)
        #print(request_data)
    #解析Http报文数据 request_data
    #提取请求方式
    #提取请求路径path
        HTML_ROOT_DIR = "./html"
        path = /index.html
    /login.html
        try:
            file = open("index.html")
        data = file.read()
        file.close()

        except IOError:
        """
        HTTP1.1 404 not found\r\n
        \r\n
        not found
        """

    #返回相应数据
        """
        HTTP1.1 200 OK\r\n
        \r\n
        hello itcast
        """
    #send()
    #close()

2）版本1：主进程程序

from socket import *
from multiprocessing import Process

def fun(client_socket):
　　pass

def main():

    #tcp socket 服务端
    server_socket = socket(AF_INET,SOCK_STREAM)
    server_socket.setsockopt(SOL_SOCKET,SO_REUSEADDR,1)  #防止端口不能重复访问
    server_socket.bind(("",7788))
    server_socket.listen(10)
    client_socket = server_socket.accept()   #等待接受电话

    while True:
        p = Process(target=fun, args=(client_socket,))
        p.start()
        client_socket.close()

    server_socket.close()

if __name__ == "__main__":
    main()

3）版本2：获取http报文头

from socket import *
from multiprocessing import Process

def fun(client_socket,client_addr):

    #接受数据
        #request_data = recv(1024)
        #print(request_data)
    request_data = client_socket.recv(1024)
    print("[%s]\n%s"%(client_addr,request_data))

    #解析Http报文数据 request_data
    #提取请求方式
    #提取请求路径path
    #返回相应数据
    #send()
    #close()

def main():

    #tcp socket 服务端
    server_socket = socket(AF_INET,SOCK_STREAM)
    server_socket.setsockopt(SOL_SOCKET,SO_REUSEADDR,1)  #防止端口不能重复访问
    server_socket.bind(("",8080))
    server_socket.listen(10)

    while True:
        client_socket, client_addr = server_socket.accept()  # 等待接受电话
        p = Process(target=fun, args=(client_socket,client_addr,))
        p.start()
        client_socket.close()

    server_socket.close()

if __name__ == "__main__":
    main()

4）版本3：获取html的内容

from socket import *
from multiprocessing import Process

def fun(client_socket,client_addr):

    #接受数据
        #request_data = recv(1024)
        #print(request_data)
    request_data = client_socket.recv(1024)
    print("[%s]\n%s"%(client_addr,request_data))

    request_data = str(request_data)
    #解析Http报文数据 request_data

    #提取请求方式
    print(request_data[2:5])
    request_method = request_data[2:5]

    #提取请求路径path
    print(request_data[6:8])

    #返回相应数据
    error_data = """
                HTTP1.1 404 not found\r\n
                \r\n
                not found
                """
    #HTML_ROOT_DIR = "./html"
    #path = "index.html"
    if request_method == "GET":
        try:
            file = open("./html/index.html")
            data = file.read()
            print(data)
            file.close()

        except IOError:
            error_data

    #send()
    #close()

def main():

    #tcp socket 服务端
    server_socket = socket(AF_INET,SOCK_STREAM)
    server_socket.setsockopt(SOL_SOCKET,SO_REUSEADDR,1)  #防止端口不能重复访问
    server_socket.bind(("",8080))
    server_socket.listen(10)

    while True:
        client_socket, client_addr = server_socket.accept()  # 等待接受电话
        p = Process(target=fun, args=(client_socket,client_addr,))
        p.start()
        client_socket.close()

    server_socket.close()

if __name__ == "__main__":
    main()