droidSocket實(shí)現(xiàn)簡(jiǎn)單聊天小程序

1、an droid Socket 實(shí)現(xiàn)簡(jiǎn)單聊天小程序服務(wù)器端:Java代碼1.package org.hwq.echo;2.3.importjava.io.BufferedReader;4.importjava.ioO Exception;5.importjava.i onputStreamReader;6.importjava.io.PrintWriter;7.import.ServerSocket;8.import.Socket;9.10.publicclass TalkServer 11.public staticvoid main(String args)throws IOExcepti

2、on12.ServerSocket server =null ;13.Socket client =null ;14.BufferedReader in =null ;15.PrintWriter out =null ;16.try 17.server =new ServerSocket(4700);18.client = server.accept();19.out =new PrintWriter(client.getOutputStream();20.in =new BufferedReader(new InputStreamReader(client.getInputStream();

3、21.String line = in.readLine();22.while (! bye .equals(line)23.System.out.println(client:+line);24.out.println(echo:+line);25.out.flush();26.line = in.readLine();27.28.catch (Exception e) 29.e.printStackTrace();30.if (client !=null )31.client.close();32.if (server !=null )33.server.close();34.35.36.

4、手機(jī)端：Java代碼 *I1. package org.hwq.cho;2.2. import java.io.BufferedReader;3. import java.io0 Exception;4. import java.i onputStreamReader;5. import java.io.PrintWriter;6. import .Socket;7. import .UnknownHostException;9.8. import android.app.Activity;9. import android.content.Context;10. import android

5、.os.Bundle;11. import android.os.Handler;12. import android.os.Message;13. import android.view.View;14. import android.view.View.OnClickListener;15. import android.widget.Button;16. import android.widget.EditText;17. import android.widget.Toast;20.18. public class EchoActivity extends Activity imple

6、ments OnClickListener 19. EditText show,msg;20. Button send;21. Handler handler;22. Socket client;23. /* Called when the activity is first created. */24. Override25. public void onCreate(Bundle savedInstanceState) 26. super .onCreate(savedlnstanceState);27. setContentView(R.layout.main);28. handler

7、=new MyHandler();29. show = (EditText) findViewById(R.id.show);30. msg = (EditText) findViewById(R.id.msg);31. send = (Button) findViewById(R.id.send);32. send.setOnClickListener(this);33. 34. Override35. public void onClick(View arg0) 36. String message = msg.getText().toString();/ System.out.print

8、ln(msg:+message);new EchoThread(EchoActivity.this ,message).start();public class MyHandler extends HandlerOverridepublic void handleMessage(Message msg) switch (msg.what)case 1:Toast.makeText(EchoActivity.this ,建立連接失敗，0).show();break ;case 2:String message = (String) msg.obj;System.out.println(Handl

9、er: +message);show.append(n +message);break ;private class EchoThread extends Threadprivate Context context;private String msg;EchoThread(Context context,String msg)this .context = context;this .msg = msg;public void run()if (client = null )try client =new Socket( 192.168.1.102, 4700 );catch (IOExce

10、ption e) Message message =new Message();message.what =1;handler.sendMessage(message);System.out.println(建立連接)；try BufferedReader in;BufferedReader input;PrintWriter out;in =new BufferedReader( new lnputStreamReader(client.getlnputStream();40.41.42.43.44.45.46.47.48.49.50.51.52.53.54.55.56.57.58.59.6

11、0.61.62.63.64.65.66.67.68.69.70.71.72.73.74.75.76.77.78.79.80.81. out =new PrintWriter(client.getOutputStream();82. String line = msg;83.if (! bye .equals(line)84.System.out.println(line:+line);85.out.println(line);86.out.flush();87.String echo = in.readLine();88.System.out.println(server:+echo);89.

12、Message message =new Message();90.message.obj = echo;91.message.what =2;92.handler.sendMessage(message);93.94.catch (Exception e) 95.96. 97. 98. 99. 注意幾點(diǎn)：1、添加網(wǎng)絡(luò)權(quán)限Java代碼I/1. vuses-permission android:name=android.permissio nN TERNET如果沒(méi)添加，無(wú)法使用socket連接網(wǎng)絡(luò)。2、在新啟線(xiàn)程中不要使用 an droid系統(tǒng)UI界面在EchoThrad的run()方法里面，有

13、下面代碼：1.if (client =null )2.try 3.client =new Socket( 192.168.1.1024.catch(lOException e) 5.Message message=new Message();6.message.what =1;7.handler.sendMessage(message);Java代碼心I,4700 );8. 9.這里的 handler.sendMessage(message);是發(fā)送一個(gè)消息給 handler, 然后handler根據(jù)消息彈出一個(gè)Toast顯示連接失敗。如果這里直接使 用Java代碼必1. Toast.make

14、Text(EchoActivity.this ,建立連接失敗，0).show();會(huì)報(bào)如下錯(cuò):Java代碼心1. Cant create handler inside thread that has not called Looper.prepare()倚窗遠(yuǎn)眺，目光目光盡處必有一座山，那影影綽綽的黛綠色的影，是春天的 顏色。周遭流嵐升騰，沒(méi)露出那真實(shí)的面孔。面對(duì)那流轉(zhuǎn)的薄霧，我會(huì)幻想，那 里有一個(gè)世外桃源。在天階夜色涼如水的夏夜，我會(huì)靜靜地，靜靜地，等待一場(chǎng) 流星雨的來(lái)臨許下一個(gè)愿望，不乞求去實(shí)現(xiàn)，至少，曾經(jīng)，有那么一刻，我那還未枯萎的， 青春的，詩(shī)意的心，在我最美的年華里，同星空做了一次靈

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