Question

我试图学习如何使用套接字并将一个接收ip，端口和文件的类放在一起。它可以在localhost上运行，但是当我将它传递给网络上另一台主机的ip时就不行了。

这是追溯：

var taskDiv = '<div><table border=1 class="table table-condensed">';
var progress = 47;
taskDiv += ('<tr><td>link</td><td>200min</td><td>result size</td></tr>');
taskDiv += ('<tr><td colspan="3"><div class="container"><div class="progress progress-striped active"><div class="progress-bar" style="width: 0%;"></div></div></div></td></tr>');
var $bar = $('.progress-bar');

if ( $bar.width() == 100 ) {
    $( '.progress' ).removeClass( 'active' );
} else {
    $bar.width(progress);
}
    $bar.text(progress + "%");
}
taskDiv+=('</table></div>');
$(taskDiv).appendTo('#providers');
$providersDiv.append('</table>');

这是代码：

multiprocessing.pool.RemoteTraceback: 
"""
Traceback (most recent call last):
  File "/path/to/anaconda3/envs/env/lib/python3.5/multiprocessing/pool.py", line 119, in worker
    result = (True, func(*args, **kwds))
  File "script.py", line 91, in servr
    servr.bind((self.ip, self.port))
OSError: [Errno 99] Cannot assign requested address
"""

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "script.py", line 163, in <module>
    main()
  File "script.py", line 157, in main
    rmt.client()
  File "script.py", line 85, in client
    machines.update({self.ip: {self.port: path.get()}})
  File "/path/to/anaconda3/envs/env/lib/python3.5/multiprocessing/pool.py", line 608, in get
    raise self._value
OSError: [Errno 99] Cannot assign requested address

我尝试绑定到class Remote: def __init__(self, ip, port, filename): self.ip = socket.gethostbyname(ip) self.port = int(port) self.filename = filename def client(self): pool = Pool(processes=1) path = pool.apply_async(self.servr) time.sleep(1) client = socket.socket() client.connect((self.ip, self.port)) with open(self.filename, 'rb') as file: data = file.read() client.sendall(data) machines = {} try: with open("machines.pickle", 'rb') as file: machines = pickle.load(file) except (EOFError, FileNotFoundError): pass finally: with open("machines.pickle", 'wb') as file: machines.update({self.ip: {self.port: path.get()}}) pickle.dump(machines, file) def servr(self): servr = socket.socket(socket.AF_INET, socket.SOCK_STREAM) servr.bind((self.ip, self.port)) servr.listen(5) client, addr = servr.accept() file = open("." + self.filename, 'wb') if platform.system() == 'Linux' else os.popen( "attrib +h " + self.filename, 'wb') data = client.recv(6000) file.write(data) file.close() file = "." + self.filename if platform.system() == 'Linux' else self.filename os.chmod(file, os.stat(file).st_mode | 0o111) client.close() servr.close() return os.path.abspath(file)但是代码没有超过对("", 0)的调用。也许港口已经在使用？我也试过了accept()，虽然它突破了socket.settimeout()，程序会在第一个方法的dict更新之前运行，但没有发送文件。

Answer 1

对于服务器，.bind(('',port))是典型的，意味着接受任何接口上的客户端连接。使用端口0不典型...使用数字> 1024是典型的。在客户端连接到服务器之前，代码不会超过accept，因此在accept停止也是正常的。

通过套接字发送文件 - bind（）

1 个答案: