Android手机之间Socket通信

package com.example.webserver_1;

import java.io.IOException;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

import android.app.Activity;
import android.content.Context;
import android.net.wifi.WifiInfo;
import android.net.wifi.WifiManager;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends Activity {

private ServerSocket severSocket;
private TextView ipTextView;
private EditText editText1;
private Button button1;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ipTextView = (TextView) findViewById(R.id.ipTextView);
editText1 = (EditText) findViewById(R.id.editText1);
button1 = (Button) findViewById(R.id.button1);
//ipTextView.setText(getIp());////显示服务器端ip地址

funThread();/////开始监听

}// /onCreate
//////////////////////
private void funThread(){

new Thread(new Runnable() {

@Override
public void run() {
// TODO 自动生成的方法存根
try {
severSocket = new ServerSocket(2345);
while (true) {

Socket socket = severSocket.accept();
String serverMessage = "你好Tom123，我是服务器端的消息";
OutputStream os = socket.getOutputStream();
os.write(serverMessage.getBytes("utf-8"));
os.flush();
socket.close();
}
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
}
}).start();
}//funThread
////////////////////////////////

private String getIp() {

// 获取wifi服务
WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
// 判断wifi是否开启
if (!wifiManager.isWifiEnabled()) {
wifiManager.setWifiEnabled(true);
}
WifiInfo wifiInfo = wifiManager.getConnectionInfo();
int ipAddress = wifiInfo.getIpAddress();
Log.i("ip", String.valueOf(ipAddress));
String ip = intToIp(ipAddress);
return ip;
}// /getIp

private String intToIp(int i) {

return (i & 0xFF) + "." + ((i >> 8) & 0xFF) + "." + ((i >> 16) & 0xFF)
+ "." + (i >> 24 & 0xFF);
}// intToIp

}// MainActivity

package com.example.clientserver_1;

import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;
import java.net.UnknownHostException;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.TextView;

public class MainActivity extends Activity {

private TextView messageTextView;
private String result;
private Handler handler;
private Socket socket;
private String serverResult;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
messageTextView = (TextView) findViewById(R.id.messageTextView);

getServerMessage();

handler = new Handler() {

@Override
public void handleMessage(Message msg) {
// TODO 自动生成的方法存根
super.handleMessage(msg);
if (msg.what == 1) {
//messageTextView.setText((String) msg.obj);
Log.i("-------------客户端result-------------------", (String) msg.obj);

}
}// /handleMessage
};// // handler = new Handler()
}// onCreate

private void getServerMessage() {

new Thread(new Runnable() {

@Override
public void run() {
// TODO 自动生成的方法存根
try {
while(true){
Thread.sleep(500);
socket = new Socket("192.168.0.111", 2345);///连接的是服务器地址，端口号相同
InputStream is = socket.getInputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int i=-1;
while(  (i=is.read()) !=-1  ){
baos.write(i);
}
result = baos.toString();
//Log.i("-------------客户端result-------------------", result);
is.close();
socket.close();
// messageTextView.setText(result);
Message msg = new Message();
msg.what = 1;
msg.obj = result;
handler.sendMessage(msg);

}

} catch (UnknownHostException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
} catch (IOException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
} catch (InterruptedException e) {
// TODO 自动生成的 catch 块
e.printStackTrace();
}
}
}).start();
//return result;
}// /getServerMessage

}

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS" />
<uses-permission android:name="android.permission.GET_TASKS" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.READ_LOGS" />