4 class类 web服务器

1.换行符

　　　　

2.pycharm 连接Ubuntu

　　1）添加环境变量

　　2）查看ip

　　3）配置目录

　　4）上传或者下载

3.面向对象抽象web服务器

　　1）版本1：类

class HttpServer(object):
    """"""
    pass

http_server = HttpServer()

　　2）版本2：初始化

class HttpServer(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, 1)
        self.server_socket.bind(("",port ))
        self.server_socket.listen(128)

http_server = HttpServer(8080)

　　3）版本3：定义方法

class HttpServer(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, 1)
        self.server_socket.bind(("", port))
        self.server_socket.listen(128)

    def start(self):
       pass

    def hand_client(self):
        pass

http_server = HttpServer(8080)
http_server.start()

　　4）版本4：调整

#-*- 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

class HttpServer(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, 1)
        self.server_socket.bind(("", port))

    def start(self):
        self.server_socket.listen(128)
        while True:
            client_socket, client_address = self.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=self.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

    def hand_client(self,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()

def main():
    http_server = HttpServer(8080)
    http_server.start()

if __name__ == "__main__":
    main()

　　5）版本5：增加bind方法

#-*- 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

class HttpServer(object):
    """"""
    def __init__(self):
        self.server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

    def start(self):
        self.server_socket.listen(128)
        while True:
            client_socket, client_address = self.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=self.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

    def hand_client(self,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()

    def bind(self,port):
        self.server_socket.bind(("", port))

def main():
    http_server = HttpServer()
    http_server.bind(8080)
    http_server.start()

if __name__ == "__main__":
    main()