HTTP server 2.0

　　1 接收客戶請求

　　2 解析客戶端請求

　　3 組合數據，形成HTTP response

　　4 將數據發送給客戶端

升級 ：

　　1 多線程接收客戶端請求

　　2 基本的請求解析，根據請求返回數據（相應內容）

　　3 除了可以請求靜態網頁，也可以請求簡單的數據

　　4 將功能封裝在一個類中

#coding = utf-8
‘‘‘http 2.0
１多線程並發
２可以請求簡單數據
３能進行簡單請求解析
４結構使用類進行封裝
‘‘‘
import socket, os, sys, traceback
from threading import Thread

 
#封裝具體的服務器功能
class HTTPserver(object):
    def __init__(self,server_addr,server_static_dir):
            self.server_addr = server_addr
            self.server_static_dir = server_static_dir
            self.ip = server_addr[0]
            self.port = server_addr[1]
            self.create_socket()

    
 
def create_socket(self):#創建
        self.sockfd = socket.socket()
        self.sockfd.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.sockfd.bind(self.server_addr)

    def serve_forever(self):#啟動
        self.sockfd.listen()
        print(‘listen the prot:%s‘ % self.port)
        
 
while True:
            try:
                confd, addr = self.sockfd.accept()
            except KeyboardInterrupt:
                self.sockfd.close()
                sys.exit(‘服務器退出‘)
            except Exception:
                traceback.print_exc()
                continue
            # 創建新的線程處理請求
            t = Thread(target=self.handle, args=(confd,))
            t.Daemon = True
            t.start()

    def handle(self, confd):
        # 接收客戶端請求
        data = confd.recv(1024)

        # 解析請求內容
        dataHeader = data.splitlines()

        # 獲取具體請求內容
        getRequest = str(dataHeader[0]).split(‘ ‘)[1]
        urls = [‘/‘,‘/index‘,‘/index_1‘,‘/index_2‘]
        if getRequest == ‘/‘ or getRequest[-5:] == ‘.html‘:#獲取主頁
            print(‘已進行來‘)
            self.get_html(confd)
        elif getRequest in urls:  #獲取下級頁面
            self.get_data(confd,getRequest)
        else:
            self.error_(confd)
        confd.close()

    def get_data(self, confd,getReques):#獲取頁面數據
        getReques = getReques.split(‘/‘)[1]
        path =os.path.join(self.server_static_dir,getReques)
        print(path)
        with open(path+‘.html‘,‘r‘) as f:
            data = f.read()
        response = ‘HTTP/1.1 200 OK\r\n‘
        response +=‘\r\n‘
        response +=data
        confd.send(response.encode())

    def error_(self,confd):#出錯處理
        response = ‘HTTP/1.1 404 NOT FUOUND\r\n‘
        response += ‘\r\n‘
        responseBOdy = ‘SORRY,NOT PAGE‘
        response += responseBOdy
        confd.send(responseBOdy.encode())

    def get_html(self,confd):#首頁處理
        with open(‘index.html‘,‘r‘) as f:
            data = f.read()
        #print(data)
        xieyi = ‘HTTP/1.1 200 OK \r\n‘
        xieyi += ‘\r\n‘
        xieyi += data
        confd.send(xieyi.encode())

if __name__ == ‘__main__‘:
    server_addr = (‘127.0.0.1‘, 8080)#地址
    server_static_dir = os.getcwd()#靜態頁面目錄

    #生成對象
    httpd = HTTPserver(server_addr, server_static_dir)

    #啟動服務器
    httpd.serve_forever()

手寫走通HTTP server