day029 Socketserver和 ftp

一.Socketserver

#服务端
import socketserver

class KnightServer(socketserver.BaseRequestHandler):

    def handle(self):
        # self.request  相当于conn链接通道
        while 1:
            from_client_msg = self.request.recv(1024)
            print(from_client_msg.decode('utf-8'))
            server_msg = input('服务端说>>>')
            self.request.send(server_msg.encode('utf-8'))


if __name__ == '__main__':
    ip_port = ('127.0.0.1',8001)
    server = socketserver.ThreadingTCPServer(ip_port,KnightServer)
    server.serve_forever()

#客户端
import socket
import time
client = socket.socket()
client.connect(('127.0.0.1',8001))

while 1:
    client_data = input('别开车>>>')
    client.send(client_data.encode('utf-8'))

    from_server_msg = client.recv(1024)
    print(from_server_msg.decode('utf-8'))

client.close()

socketserver

#ftp文件上传服务端

import socket
import time
import json
server = socket.socket()

server.bind(('127.0.0.1',8001))
server.listen()

conn,addr = server.accept()

def upload(conn,client_file_info):
#
upload_file_path = r'D:\jj' + '\\' + client_file_info['file_name']
recv_all_datalen = 0
with open(upload_file_path,'wb') as f:
while recv_all_datalen < client_file_info['file_size']:
every_recv_data = conn.recv(1024)
every_recv_datalen = len(every_recv_data)
recv_all_datalen += every_recv_datalen
f.write(every_recv_data)

print('客户端上传文件')

client_userinfo = conn.recv(1024).decode('utf-8')
#定义一个需要返回给服务端的功能列表
server_function_list = {'1':'上传','2':'下载'}
#将功能字典转换为json字符串,然后进行编码,转成bytes类型
json_func_list = json.dumps(server_function_list,ensure_ascii=False)

#服务端登录认证
with open('userinformation','r',encoding='utf-8') as f:
for i in f:
if i.strip() == client_userinfo:
#登录成功以后,将服务端能够提供的功能,发送给客户端
conn.send(json_func_list.encode('utf-8'))
#接收客户端的文件描述信息,其中有一项是功能序号
client_fileinfo_json = conn.recv(1024).decode('utf-8')
client_file_info = json.loads(client_fileinfo_json)

print(client_file_info)
if client_file_info['func_choice'] == '1':
upload(conn,client_file_info)

break
else:
#登录错误的信息码
conn.send(b'201')

#ftp 文件上传客户端