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/xiaokang01/p/9865724.html
socket传输文件
思路: # 先将报头转换成字符串(json.dumps), 再将字符串的长度打包 # 发送报头长度,发送报头内容,最后放真是内容 # 报头内容包括文件名,文件信息,报头 # 接收时:先接收4个字节的报头长度, # 将报头长度解压,得到头部信息的大小,在接收头部信息, 反序列化(json.loads) # 最后接收真实文件
服务端
#!/usr/bin/env python# -*- coding: utf-8 -*-# @Time : 18-5-21 下午1:59# @Author : LK# @File : 文件传输-服务端.py# @Software: PyCharmfrom socket import *import structimport jsonimport ostcp_server = socket(AF_INET, SOCK_STREAM)ip_port = (("127.0.0.1", 8080))buffsize = 1024# 端口的重复利用tcp_server.setsockopt(SOL_SOCKET, SO_REUSEPORT, 1)tcp_server.bind(ip_port)tcp_server.listen(5)print("还没有人链接")while True: """链接循环""" conn, addr = tcp_server.accept() print("链接人的信息:", addr) while True: if not conn: print("客户端链接中断") break """通信循环""" filemesg = input("请输入要传送的文件名加后缀>>>").strip() filesize_bytes = os.path.getsize(filemesg) # 得到文件的大小,字节 filename = "new" + filemesg dirc = { "filename": filename, "filesize_bytes": filesize_bytes, } head_info = json.dumps(dirc) # 将字典转换成字符串 head_info_len = struct.pack("i", len(head_info)) # 将字符串的长度打包 # 先将报头转换成字符串(json.dumps), 再将字符串的长度打包 # 发送报头长度,发送报头内容,最后放真是内容 # 报头内容包括文件名,文件信息,报头 # 接收时:先接收4个字节的报头长度, # 将报头长度解压,得到头部信息的大小,在接收头部信息, 反序列化(json.loads) # 最后接收真实文件 conn.send(head_info_len) # 发送head_info的长度 conn.send(head_info.encode("utf-8")) # 发送真是信息 with open(filemesg, "rb") as f: data = f.read() conn.sendall(data) print("发送成功")
客户端
#!/usr/bin/env python# -*- coding: utf-8 -*-# @Time : 18-5-21 下午1:59# @Author : LK# @File : 文件传输_客户端.py# @Software: PyCharmfrom socket import *import structimport jsonimport osimport sysimport timefrom 进度条 import process_bartcp_client = socket(AF_INET, SOCK_STREAM)ip_port = (("127.0.0.1", 8080))buffsize = 1024tcp_client.connect_ex(ip_port)print("等待链接服务端")while True: head_struct = tcp_client.recv(4) # 接收报头的长度, if head_struct: print("已连接服务端,等待接收数据") head_len = struct.unpack("i", head_struct)[0] # 解析出报头的字符串大小 data = tcp_client.recv(head_len) # 接收长度为head_len的报头内容的信息 (包含文件大小,文件名的内容) head_dir = json.loads(data.decode("utf-8")) filesize_b = head_dir["filesize_bytes"] filename = head_dir["filename"] # 接受真的文件内容 recv_len = 0 recv_mesg = b"" old = time.time() f = open(filename, "wb") while recv_len < filesize_b: percent = recv_len / filesize_b process_bar(percent) if filesize_b - recv_len > buffsize: recv_mesg = tcp_client.recv(buffsize) f.write(recv_mesg) recv_len += len(recv_mesg) else: recv_mesg = tcp_client.recv(filesize_b - recv_len) recv_len += len(recv_mesg) f.write(recv_mesg) print(recv_len, filesize_b) now = time.time() stamp = int(now - old) print("总共用时%ds" % stamp) f.close()
进度条
#!/usr/bin/env python# -*- coding: utf-8 -*-# @Time : 18-5-21 下午3:44# @Author : LK# @File : 进度条.py# @Software: PyCharmimport sysimport timedef process_bar(precent, width=50): use_num = int(precent*width) space_num = int(width-use_num) precent = precent*100 # 第一个和最后一个一样梯形显示, 中间两个正确,但是在python2中报错 # # print("[%s%s]%d%%"%(use_num*"#", space_num*" ",precent)) # print("[%s%s]%d%%"%(use_num*"#", space_num*" ",precent), end="\r") print("[%s%s]%d%%"%(use_num*"#", space_num*" ",precent),file=sys.stdout,flush=True, end="\r") # print("[%s%s]%d%%"%(use_num*"#", space_num*" ",precent),file=sys.stdout,flush=True)# for i in range(21):# precent = i/20# process_bar(precent)# time.sleep(0.2)
socket_server 传输文件
#!/usr/bin/env python# -*- coding: utf-8 -*-# @Time : 18-5-21 下午8:04# @Author : LK# @File : server_socket_文件_服务端.py# @Software: PyCharmimport socketserverimport structimport osimport jsonimport structdef sendRealFile(conn, filename): """发送真是文件""" with open(filename, "rb")as f: conn.sendall(f.read()) print("发送成功")def operafile(filename): """对报头进行打包""" filesize_bytes = os.path.getsize(filename) head_dir = { "filename": "new" + filename, "filesize_bytes": filesize_bytes, } head_info = json.dumps(head_dir) head_info_len = struct.pack("i", len(head_info)) return head_info_len, head_infoclass MyServer(socketserver.BaseRequestHandler): buffsize = 1024 def handle(self): # self.request print("连接人的信息") print("conn是", self.request) # conn print("addr是", self.client_address) # addr while True: """收发消息""" filename = input("请输入要发送的文件名加上后缀>>>").strip() # 判断文件是否存在 head_info_len, head_info = operafile(filename) self.request.send(head_info_len) # 这里是4个字节 self.request.send(head_info.encode("utf-8")) # 发送报头的内容 sendRealFile(self.request, filename)if __name__ == "__main__": # pass print("还没有人连接") s = socketserver.ThreadingTCPServer(("127.0.0.1", 8080), MyServer) # 多线程 # 服务器一直开着 s.serve_forever()
#!/usr/bin/env python# -*- coding: utf-8 -*-# @Time : 18-5-21 下午8:32# @Author : LK# @File : server_socket_文件客户端.py# @Software: PyCharmfrom socket import *import osimport sysimport jsonimport structtcp_client = socket(AF_INET, SOCK_STREAM)ip_port = (("127.0.0.1", 8080))buffsize = 1024tcp_client.connect_ex(ip_port)print("等待服务端发送信息")def recv_file(head_dir, tcp_client): filename = head_dir["filename"] filesize_b = head_dir["filesize_bytes"] recv_len = 0 recv_mesg = b"" f = open(filename, "wb") while recv_len < filesize_b: if filesize_b - recv_len > buffsize: recv_mesg = tcp_client.recv(buffsize) recv_len += len(recv_mesg) f.write(recv_mesg) else: recv_mesg = tcp_client.recv(filesize_b - recv_len) recv_len += len(recv_mesg) f.write(recv_mesg) f.close() print("文件传输完成")while True: """收发循环""" struct_len = tcp_client.recv(4) # 接受报头的长度 struct_info_len = struct.unpack("i",struct_len)[0] # 解析得到报头信息的长度 head_info = tcp_client.recv(struct_info_len) # 接受报头的内容 head_dir = json.loads(head_info.decode("utf-8")) # 将报头的内容反序列化 # # 文件信息 # filename = head_dir["filename"] # filesize = head_dir["filesize_bytes"] recv_file(head_dir, tcp_client) # 接受文件
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