最近项目突然加了个需求，上传用户的ip和mac，话不多说，直接上代码
获取Mac地址实际项目中测试了如下几种方法:
(1)设备开通Wifi连接，获取到网卡的MAC地址(但是不开通wifi，这种方法获取不到Mac地址，这种方法也是网络上使用的最多的方法)
//根据Wifi信息获取本地Mac
public static String getLocalMacAddressFromWifiInfo(Context context){
WifiManager wifi = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);
WifiInfo info = wifi.getConnectionInfo();
return info.getMacAddress();
}
(2)调用Linux的busybox，通过linux命令来获取
//根据busybox获取本地Mac public static String getLocalMacAddressFromBusybox(){ String result = ""; String Mac = ""; result = callCmd("busybox ifconfig","HWaddr"); //如果返回的result == null，则说明网络不可取 if(result==null){ return "网络出错，请检查网络"; } //对该行数据进行解析 //例如：eth0 Link encap:Ethernet HWaddr 00:16:E8:3E:DF:67 if(result.length()>0 && result.contains("HWaddr")==true){ Mac = result.substring(result.indexOf("HWaddr")+6, result.length()-1); Log.i("test","Mac:"+Mac+" Mac.length: "+Mac.length()); /*if(Mac.length()>1){ Mac = Mac.replaceAll(" ", ""); result = ""; String[] tmp = Mac.split(":"); for(int i = 0;i<tmp.length;++i){ result +=tmp[i]; } }*/ result = Mac; Log.i("test",result+" result.length: "+result.length()); } return result; } private static String callCmd(String cmd,String filter) { String result = ""; String line = ""; try { Process proc = Runtime.getRuntime().exec(cmd); InputStreamReader is = new InputStreamReader(proc.getInputStream()); BufferedReader br = new BufferedReader (is); //执行命令cmd，只取结果中含有filter的这一行 while ((line = br.readLine ()) != null && line.contains(filter)== false) { //result += line; Log.i("test","line: "+line); } result = line; Log.i("test","result: "+result); } catch(Exception e) { e.printStackTrace(); } return result; }
(3)调用android 的API： NetworkInterface. getHardwareAddress ()
该API的level为9，只有android 2.3以上才有该接口
//根据IP获取本地Mac public static String getLocalMacAddressFromIp(Context context) { String mac_s= ""; try { byte[] mac; NetworkInterface ne=NetworkInterface.getByInetAddress(InetAddress.getByName(getLocalIpAddress())); mac = ne.getHardwareAddress(); mac_s = byte2hex(mac); } catch (Exception e) { e.printStackTrace(); } return mac_s; } public static String byte2hex(byte[] b) { StringBuffer hs = new StringBuffer(b.length); String stmp = ""; int len = b.length; for (int n = 0; n < len; n++) { stmp = Integer.toHexString(b[n] & 0xFF); if (stmp.length() == 1) hs = hs.append("0").append(stmp); else { hs = hs.append(stmp); } } return String.valueOf(hs); }
其中getLocalIpAddress是获取本地IP地址
//获取本地IP public static String getLocalIpAddress() { try { for (Enumeration<NetworkInterface> en = NetworkInterface .getNetworkInterfaces(); en.hasMoreElements();) { NetworkInterface intf = en.nextElement(); for (Enumeration<InetAddress> enumIpAddr = intf .getInetAddresses(); enumIpAddr.hasMoreElements();) { InetAddress inetAddress = enumIpAddr.nextElement(); if (!inetAddress.isLoopbackAddress()) { return inetAddress.getHostAddress().toString(); } } } } catch (SocketException ex) { Log.e("WifiPreference IpAddress", ex.toString()); } return null; }
获取本地IP地址
在网络上搜索一下，一般就有如下的代码:
//获取本地IP public static String getLocalIpAddress() { try { for (Enumeration<NetworkInterface> en = NetworkInterface .getNetworkInterfaces(); en.hasMoreElements();) { NetworkInterface intf = en.nextElement(); for (Enumeration<InetAddress> enumIpAddr = intf .getInetAddresses(); enumIpAddr.hasMoreElements();) { InetAddress inetAddress = enumIpAddr.nextElement(); if (!inetAddress.isLoopbackAddress()) { return inetAddress.getHostAddress().toString(); } } } } catch (SocketException ex) { Log.e("WifiPreference IpAddress", ex.toString()); } return null; }
但是经过测试该方法在android2.3, 2.2...较老版本有效，但是在android较新版本(例如4.0等)获取的数据不正确。
获取到了类似fe80::b607:f9ff:fee5:487e..这样的IP地址。经过一番努力，终于找出原因。
上面的IP地址是IPV6的地址形式（大概这个意思，具体没有太深入研究）。解决方法是，在上面代码中的最内层的for循环的if语句中对inetAddress进行格式判断，只有其是IPV4格式地址时，才返回值。修改后代码如下：(下面的方法也是网络上的方法，没有结果验证)
public String getLocalIpAddress() { try { String ipv4; List nilist = Collections.list(NetworkInterface.getNetworkInterfaces()); for (NetworkInterface ni: nilist) { List ialist = Collections.list(ni.getInetAddresses()); for (InetAddress address: ialist){ if (!address.isLoopbackAddress() && InetAddressUtils.isIPv4Address(ipv4=address.getHostAddress())) { return ipv4; } } } } catch (SocketException ex) { Log.e(LOG_TAG, ex.toString()); } return null; }
网络上还有一种方法来获取本地IP地址(不过是在wifi状态下)
通过WifiManager， DhcpInfo获取IP地址以及网关等信息（在android4.0等版本也适用）
package com.jason.demo.androidip; import android.content.Context; import android.net.DhcpInfo; import android.net.wifi.WifiInfo; import android.net.wifi.WifiManager; import android.text.format.Formatter; public class IPAddress { public String getIPAddress(Context ctx){ WifiManager wifi_service = (WifiManager) ctx.getSystemService(Context.WIFI_SERVICE); DhcpInfo dhcpInfo = wifi_service.getDhcpInfo(); WifiInfo wifiinfo = wifi_service.getConnectionInfo(); System.out.println("Wifi info----->"+wifiinfo.getIpAddress()); System.out.println("DHCP info gateway----->"+Formatter.formatIpAddress(dhcpInfo.gateway)); System.out.println("DHCP info netmask----->"+Formatter.formatIpAddress(dhcpInfo.netmask)); //DhcpInfo中的ipAddress是一个int型的变量，通过Formatter将其转化为字符串IP地址 return Formatter.formatIpAddress(dhcpInfo.ipAddress); } }
加入permission
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
不过我自己在做项目过程中，用另外一种方法也解决了android4.0获取IP错误的问题:
//获取本地IP public static String getLocalIpAddress() { try { for (Enumeration<NetworkInterface> en = NetworkInterface .getNetworkInterfaces(); en.hasMoreElements();) { NetworkInterface intf = en.nextElement(); for (Enumeration<InetAddress> enumIpAddr = intf .getInetAddresses(); enumIpAddr.hasMoreElements();) { InetAddress inetAddress = enumIpAddr.nextElement(); if (!inetAddress.isLoopbackAddress() && !inetAddress.isLinkLocalAddress()) { return inetAddress.getHostAddress().toString(); } } } } catch (SocketException ex) { Log.e("WifiPreference IpAddress", ex.toString()); } return null; }
