Python--day32--ftp文件传输报错的原因
解决办法：把buffer改小
server.py
1 #实现一个大文件的上传或下载 2 #配置文件 ip地址 端口号 3 import json 4 import socket 5 import struct 6 sk = socket.socket() 7 #起服务 8 sk.bind(('127.0.0.1', 8090)) 9 sk.listen() 10 buffer = 1024 11 conn,addr = sk.accept() 12 #接收 13 head_len = conn.recv(4) 14 head_len = struct.unpack('i', head_len)[0] 15 json_head = conn.recv(head_len).decode('utf-8') 16 head = json.loads(json_head) 17 filesize = head['filesize'] 18 with open(head['filename'], 'wb') as f: 19 while filesize: 20 print(filesize) 21 if filesize >= buffer: 22 content = conn.recv(buffer) 23 f.write(content) 24 filesize -= buffer 25 else: 26 content = conn.recv(filesize) 27 f.write(content) 28 break 29 conn.close() 30 sk.close()
client.py
1 #发送端 2 import os 3 import json 4 import struct 5 import socket 6 sk = socket.socket() 7 sk.connect(('127.0.0.1', 8090)) 8 buffer = 1024 9 10 #发送文件 11 head = {'filepath':r'C:\Users\Administrator\Desktop', 12 'filename':r'test.txt', 13 'filesize':None} 14 fie_path = os.path.join(head['filepath'],head['filename']) 15 filesize = os.path.getsize(os.path.join(head['filepath'],head['filename'])) 16 17 head['filesize'] = filesize 18 json_head = json.dumps(head) #字典转成了字符串 19 bytes_head = json_head.encode('utf-8') #字符串转bytes 20 print(json_head) 21 print(bytes_head) 22 #计算head的长度 23 head_len = len(bytes_head) #报头的长度 24 pack_len = struct.pack('i', head_len) 25 sk.send(pack_len) #先发报头的长度 26 sk.send(bytes_head) #再发送bytes类型的报头 27 with open(fie_path, 'rb') as f: 28 while filesize: 29 print(filesize) 30 if filesize >= buffer: 31 content = f.read(buffer) #每次读出来的内容 32 sk.send(content) 33 filesize -= buffer 34 else: 35 content = f.read(filesize) 36 sk.send(content) 37 break 38 sk.close()
