Question

我正在尝试使用WiFi将手机连接到笔记本电脑。两个设备都连接到一个网络。笔记本电脑有IP 192.168.1.35所以我试图通过智能手机连接该IP（防火墙已关闭）。这是代码：

package org.me.androidapp;

import android.app.Activity;
import android.os.Bundle;
import android.widget.Toast;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;
import java.util.logging.Level;
import java.util.logging.Logger;

public class MainActivity extends Activity {

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        try {
            Toast.makeText(this.getApplicationContext(), "OK", Toast.LENGTH_LONG).show();
            Socket socket = new Socket("192.168.1.35", 9999);
            PrintWriter out = new PrintWriter( new BufferedWriter( new OutputStreamWriter(socket.getOutputStream())),true);
            out.println("dupa");
            socket.close();
        } catch (UnknownHostException ex) {
            Toast.makeText(this.getApplicationContext(), "Nie odnaleziono hosta", Toast.LENGTH_LONG).show();
            Logger.getLogger(MainActivity.class.getName()).log(Level.SEVERE, null, ex);
        } catch (IOException ex) {
            Toast.makeText(this.getApplicationContext(), ex.toString(), Toast.LENGTH_LONG).show();
            Logger.getLogger(MainActivity.class.getName()).log(Level.SEVERE, null, ex);
        }

    }

}

我使用此代码（用python编写）作为服务器：

import socket

_connector = None
_running = True

_host = 'localhost'
_port = '9999'
_maxClient = 999

debug = True
_policyFile = '<?xml version="1.0" encoding="UTF-8"?><cross-domain-policy xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://www.adobe.com/xml/schemas/PolicyFileSocket.xsd"><allow-access-from domain="*" to-ports="*" secure="false" /><site-control permitted-cross-domain-policies="master-only" /></cross-domain-policy>'

## Trace debugging messages.
#  @param aString String to be printed.
def printd( aString ):
    if debug:
        print aString

_connector = socket.socket( socket.AF_INET, socket.SOCK_STREAM )
_connector.bind ( ( str(_host), int(_port) ) )
_connector.listen ( int(_maxClient) )
_running = True

while _running:
  printd('Running on port ' + _port + ' ... ')
  channel, details = _connector.accept()

  if _running:
      printd( 'New connection with: ' + str(details) )
      channel.setblocking( 1 )
      recvData = channel.recv(2000)

      if("policy-file-request" in recvData):
         channel.send(_policyFile)

      printd( 'host: ' + str(details[0]) )
      printd( 'port: ' + str(details[1]) )
      printd( 'port: ' + str(int(details[1])) )

      channel.close()

我在手机上测试这个应用程序因为我不确定如何配置模拟器（任何帮助？:)）。电话显示错误“Java.Net.ConnectionError localhost / 192.168.1.1:9999 - 连接被拒绝”。我想知道为什么它显示IP 192.168.1.1 ...

请帮忙，克里斯

Answer 1

您的python代码绑定到localhost，这意味着它不是在网络上监听，而是仅在环回上监听，因此您应该更改它以使其监听计算机的网络地址（即192.168.1.35）而不是127.0.0.1

使用套接字连接PC的问题

1 个答案: