android 模拟器和PC用sockets通讯

之前一直会用sockets来实现emulator和PC进行通讯，卡了几天，最后请教其他人终于可以连接了。  错误原因是在IP和端口，IP要用本机IP（在CMD输入ipconfig，注意：每次开机本机IP都不同，ADSL是动态IP），端口用emulator的名称，5554或5556.java sever文件要另外建java工程运行，在android工程运行不了java（run application）
客户端代码：

package com.yarin.android.Examples_08_04;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.InetAddress;
import java.net.Socket;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Activity01 extends Activity
{
	private final String		DEBUG_TAG	= "Activity01";
	
	private TextView	mTextView=null;
	private EditText	mEditText=null;
	private Button		mButton=null;
	/** Called when the activity is first created. */
	@Override
	public void onCreate(Bundle savedInstanceState)
	{
		super.onCreate(savedInstanceState);
		setContentView(R.layout.main);
		
		mButton = (Button)findViewById(R.id.Button01);
		mTextView=(TextView)findViewById(R.id.TextView01);
		mEditText=(EditText)findViewById(R.id.EditText01);
		
		//登陆
		mButton.setOnClickListener(new OnClickListener()
		{
			public void onClick(View v)
			{
				Socket socket = null;
				String message = mEditText.getText().toString() + "\r\n"; 
				try 
				{	
					//创建Socket
					socket = new Socket("116.29.27.138",5554); //查看本机IP,每次开机都不同
					//socket=new Socket("192.168.1.110",50000);
					//向服务器发送消息
					PrintWriter out = new PrintWriter( new BufferedWriter( new OutputStreamWriter(socket.getOutputStream())),true);      
					out.println(message); 
					
					//接收来自服务器的消息
					BufferedReader br = new BufferedReader(new InputStreamReader(socket.getInputStream())); 
					String msg = br.readLine(); 
					
					if ( msg != null )
					{
						mTextView.setText(msg);
					}
					else
					{
						mTextView.setText("数据错误!");
					}
					//关闭流
					out.close();
					br.close();
					//关闭Socket
					socket.close(); 
				}
				catch (Exception e) 
				{
					// TODO: handle exception
					Log.e(DEBUG_TAG, e.toString());
				}
			}
		});
	}
}

服务器端代码：

package com.yarin.android.Examples_08_04;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class Server implements Runnable
{
	public void run()
	{
		try
		{
			//创建ServerSocket
			ServerSocket serverSocket = new ServerSocket(5554);
			while (true)
			{
				//接受客户端请求
				Socket client = serverSocket.accept();
				System.out.println("accept");
				try
				{
					//接收客户端消息
					BufferedReader in = new BufferedReader(new InputStreamReader(client.getInputStream()));
					String str = in.readLine();
					System.out.println("read:" + str);	
					//向服务器发送消息
					PrintWriter out = new PrintWriter( new BufferedWriter( new OutputStreamWriter(client.getOutputStream())),true);      
					out.println("server message"); 
					//关闭流
					out.close();
					in.close();
				}
				catch (Exception e)
				{
					System.out.println(e.getMessage());
					e.printStackTrace();
				}
				finally
				{
					//关闭
					client.close();
					System.out.println("close");
				}
			}
		}
		catch (Exception e)
		{
			System.out.println(e.getMessage());
		}
	}
	//main函数，开启服务器
	public static void main(String a[])
	{
		Thread desktopServerThread = new Thread(new Server());
		desktopServerThread.start();
	}
}

评论

4 楼 lenomon 2012-03-11  

可以看看这篇文章，http://orgcent.com/pc-android-emulator-socket/

3 楼 ghl116 2011-05-09  

不好意思，好像是我写错了

2 楼 ghl116 2011-03-29  

楼主，你好，上面的程序  //接收来自服务器的消息  我测试没有通过，没有接收到数据，求源码  [e-mail]
                  

1 楼 cfnjucs 2011-01-13  

我用楼主的方法，将端口先改成模拟器的端口，结果server端无法bind到端口5554，server端是c++实现的，后来改回原先使用的其他端口，直接在模拟器里连接，竟然是行得通的