WiFi设备MAC地址的获取-----安卓端

最新推荐文章于 2023-03-06 22:49:28 发布

EmiyaGm

最新推荐文章于 2023-03-06 22:49:28 发布

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CC 4.0 BY-SA版权

本文链接：https://blog.youkuaiyun.com/gm464723943/article/details/45673917

本文介绍了一款基于WiFi的定位系统的开发过程，重点讲解了如何通过安卓应用收集WiFi信号信息，并实现与服务器的数据交互。文章详细展示了WiFiActivity类与WiFiAdmin类的设计，以及数据传输的实现方式。

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几天前隔壁机械学院找我一起做个项目，说是什么基于WiFi的定位系统，我查了下资料，想了想前期准备工作，就做了个这么各小玩意，顺便学习一下数据库和服务器的链接，以及安卓的网络编程。

先是安卓端的周围WiFi信息的获取

WiFiActivity：

package com.example.wifiget;

import java.util.List;  

import com.gm.servlet.SendDateToServer;

import android.app.Activity;  
import android.net.wifi.ScanResult;  
import android.os.Bundle;  
import android.os.Handler;
import android.os.Message;
import android.view.View;  
import android.view.View.OnClickListener;  
import android.widget.Button;  
import android.widget.TextView;  
import android.widget.Toast;  
  
public class WiFiActivity extends Activity {  
    /** Called when the activity is first created. */  
      private TextView allNetWork;    
        private Button scan;    
        private Button start;    
        private Button stop;    
        private Button check;    
        private WiFiAdmin mWifiAdmin;    
        // 扫描结果列表    
        private List<ScanResult> list;    
        private ScanResult mScanResult;    
        private StringBuffer sb=new StringBuffer();
        Handler handler=new Handler(){
    		public void handleMessage(Message msg) {
    			switch (msg.what) {
    			case SendDateToServer.SEND_SUCCESS:
    				Toast.makeText(WiFiActivity.this, "发送成功!", Toast.LENGTH_SHORT).show();
    				break;
    			case SendDateToServer.SEND_FAIL:
    				Toast.makeText(WiFiActivity.this, "发送失败!", Toast.LENGTH_SHORT).show();
    				break;

    			default:
    				break;
    			}
    		};	
    	};
    @Override  
    public void onCreate(Bundle savedInstanceState) {  
        super.onCreate(savedInstanceState);  
        setContentView(R.layout.activity_main);  
        mWifiAdmin = new WiFiAdmin(WiFiActivity.this);    
        init();    
    }  
    public void init(){  
        allNetWork = (TextView) findViewById(R.id.allNetWork);    
        scan = (Button) findViewById(R.id.scan);    
        start = (Button) findViewById(R.id.start);    
        stop = (Button) findViewById(R.id.stop);    
        check = (Button) findViewById(R.id.check);   
        scan.setOnClickListener(new MyListener());    
        start.setOnClickListener(new MyListener());    
        stop.setOnClickListener(new MyListener());    
        check.setOnClickListener(new MyListener());    
    }  
    private class MyListener implements OnClickListener{  
  
        @Override  
        public void onClick(View v) {  
            // TODO Auto-generated method stub  
            switch (v.getId()) {  
            case R.id.scan://扫描网络  
                  getAllNetWorkList();    
                break;  
           case R.id.start://打开Wifi  
                mWifiAdmin.openWifi();  
                Toast.makeText(WiFiActivity.this, "当前wifi状态为："+mWifiAdmin.checkState(), 1).show();  
                break;  
           case R.id.stop://关闭Wifi  
                mWifiAdmin.closeWifi();  
                Toast.makeText(WiFiActivity.this, "当前wifi状态为："+mWifiAdmin.checkState(), 1).show();  
                break;  
           case R.id.check://Wifi状态  
               Toast.makeText(WiFiActivity.this, "当前wifi状态为："+mWifiAdmin.checkState(), 1).show();  
                break;  
            default:  
                break;  
            }  
        }  
          
    }  
    public void getAllNetWorkList(){  
          // 每次点击扫描之前清空上一次的扫描结果    
        if(sb!=null){  
            sb=new StringBuffer();  
        }  
        //开始扫描网络  
        mWifiAdmin.startScan();  
        list=mWifiAdmin.getWifiList();  
        if(list!=null){  
            for(int i=0;i<list.size();i++){  
                //得到扫描结果  
                mScanResult=list.get(i);  
                String macaddress=new String();
                macaddress=mScanResult.BSSID;
                new SendDateToServer(handler).SendDataToServer(macaddress);//发送到服务器，写入数据库
                sb=sb.append(mScanResult.BSSID+"  ").append(mScanResult.SSID+"   ")  
                .append(mScanResult.capabilities+"   ").append(mScanResult.frequency+"   ")  
                .append(mScanResult.level+"\n\n");
            }  
            allNetWork.setText("扫描到的wifi网络：\n"+sb.toString());
        }  
    }  
}

WiFiAdmin：

package com.example.wifiget;

import java.util.List;  

import android.content.Context;  
import android.net.wifi.ScanResult;  
import android.net.wifi.WifiConfiguration;  
import android.net.wifi.WifiInfo;  
import android.net.wifi.WifiManager;  
import android.net.wifi.WifiManager.WifiLock;  
  
public class WiFiAdmin {  
    //定义一个WifiManager对象  
    private WifiManager mWifiManager;  
    //定义一个WifiInfo对象  
    private WifiInfo mWifiInfo;  
    //扫描出的网络连接列表  
    private List<ScanResult> mWifiList;  
    //网络连接列表  
    private List<WifiConfiguration> mWifiConfigurations;  
    WifiLock mWifiLock;  
    
    
    public WiFiAdmin(Context context){  
        //取得WifiManager对象  
        mWifiManager=(WifiManager) context.getSystemService(Context.WIFI_SERVICE);  
        //取得WifiInfo对象  
        mWifiInfo=mWifiManager.getConnectionInfo();  
    }  
    //打开wifi  
    public void openWifi(){  
        if(!mWifiManager.isWifiEnabled()){  
            mWifiManager.setWifiEnabled(true);  
        }  
    }  
    //关闭wifi  
    public void closeWifi(){  
        if(!mWifiManager.isWifiEnabled()){  
            mWifiManager.setWifiEnabled(false);  
        }  
    }  
     // 检查当前wifi状态    
    public int checkState() {    
        return mWifiManager.getWifiState();    
    }    
    //锁定wifiLock  
    public void acquireWifiLock(){  
        mWifiLock.acquire();  
    }  
    //解锁wifiLock  
    public void releaseWifiLock(){  
        //判断是否锁定  
        if(mWifiLock.isHeld()){  
            mWifiLock.acquire();  
        }  
    }  
    //创建一个wifiLock  
    public void createWifiLock(){  
        mWifiLock=mWifiManager.createWifiLock("test");  
    }  
    //得到配置好的网络  
    public List<WifiConfiguration> getConfiguration(){  
        return mWifiConfigurations;  
    }  
    //指定配置好的网络进行连接  
    public void connetionConfiguration(int index){  
        if(index>mWifiConfigurations.size()){  
            return ;  
        }  
        //连接配置好指定ID的网络  
        mWifiManager.enableNetwork(mWifiConfigurations.get(index).networkId, true);  
    }  
    public void startScan(){  
        mWifiManager.startScan();  
        //得到扫描结果  
        mWifiList=mWifiManager.getScanResults();  
        //得到配置好的网络连接  
        mWifiConfigurations=mWifiManager.getConfiguredNetworks();  
    }  
    //得到网络列表  
    public List<ScanResult> getWifiList(){  
        return mWifiList;  
    }  
    //查看扫描结果  
    public StringBuffer lookUpScan(){  
        StringBuffer sb=new StringBuffer();  
        for(int i=0;i<mWifiList.size();i++){  
            sb.append("Index_" + new Integer(i + 1).toString() + ":");  
             // 将ScanResult信息转换成一个字符串包    
            // 其中把包括：BSSID、SSID、capabilities、frequency、level    
            sb.append((mWifiList.get(i)).toString()).append("\n");  
        }  
        return sb;    
    }  
    public String getMacAddress(){  
        return (mWifiInfo==null)?"NULL":mWifiInfo.getMacAddress(); 
    }  
    public String getBSSID(){  
        return (mWifiInfo==null)?"NULL":mWifiInfo.getBSSID();  
    }  
    public int getIpAddress(){  
        return (mWifiInfo==null)?0:mWifiInfo.getIpAddress();  
    }  
    //得到连接的ID  
    public int getNetWordId(){  
        return (mWifiInfo==null)?0:mWifiInfo.getNetworkId();  
    }  
    //得到wifiInfo的所有信息  
    public String getWifiInfo(){  
        return (mWifiInfo==null)?"NULL":mWifiInfo.toString();  
    }  
    //添加一个网络并连接  
    public void addNetWork(WifiConfiguration configuration){  
        int wcgId=mWifiManager.addNetwork(configuration);  
        mWifiManager.enableNetwork(wcgId, true);  
    }  
    //断开指定ID的网络  
    public void disConnectionWifi(int netId){  
        mWifiManager.disableNetwork(netId);  
        mWifiManager.disconnect();  
    }  
}

然后是安卓端的数据传输：

package com.gm.servlet;


import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.HashMap;
import java.util.Map;

import android.os.Handler;

public class SendDateToServer {
	private static String url="http://10.18.55.240:8080/ServerForGetMethod/servlet/ServerForGetMethod";
	public static final int SEND_SUCCESS=0x123;
	public static final int SEND_FAIL=0x124;
	private Handler handler;
	public SendDateToServer(Handler handler){
		this.handler=handler;
	}
	
	public void SendDataToServer(String macaddress){
		final Map<String,String>map=new HashMap<String,String>();
		map.put("macaddress", macaddress);
		new Thread(new Runnable(){
			
			public void run(){
				try{
					if(sendGetRequest(map,url,"utf-8")){
						handler.sendEmptyMessage(SEND_SUCCESS);
					}else{
						handler.sendEmptyMessage(SEND_FAIL);
					}
				}catch(Exception e){
					e.printStackTrace();
				}
			}
		}).start();
	}
	
	private boolean sendGetRequest(Map<String,String> param,String url,String encoding) throws Exception{
		
		StringBuffer sb=new StringBuffer(url);
		if(!url.equals("")&!param.isEmpty()){
			sb.append("?");
			for(Map.Entry<String, String>entry:param.entrySet()){
				sb.append(entry.getKey()+"=");
				sb.append(URLEncoder.encode(entry.getValue(),encoding));
				sb.append("&");
			}
			sb.deleteCharAt(sb.length()-1);
		}
		HttpURLConnection conn=(HttpURLConnection) new URL(sb.toString()).openConnection();
		conn.setConnectTimeout(5000);
		conn.setRequestMethod("GET");
		if(conn.getResponseCode()==200){
			return true;
		}
		return false;
	}

}

layout：

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<LinearLayout
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<Button
android:id="@+id/scan"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="扫描网络"
/>
<Button
android:id="@+id/start"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="打开Wifi"
/>
<Button
android:id="@+id/stop"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="关闭Wifi"
/>
<Button
android:id="@+id/check"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Wifi状态"
/>
<TextView
android:id="@+id/allNetWork"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="当前没有扫描到Wifi网络"
/>
</LinearLayout>
</ScrollView>

WiFi权限获取：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.wifiget"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8" />
    <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"></uses-permission>    
    <uses-permission android:name="android.permission.CHANGE_WIFI_STATE"></uses-permission>    
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"></uses-permission>    
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
    <uses-permission android:name="android.permission.INTERNET"></uses-permission>
    <application
        android:allowBackup="true"
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name="com.example.wifiget.WiFiActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>
    

</manifest>