Android获取本机IP地址（不是localhost）和MAC的方法

这个方法在摩托罗拉里程碑上测试通过。功能是获取本机的IP和MAC地址。首先新建一个工程，修改AndroidManifest.xml文件增加用户权限，如下。

view plaincopy to clipboardprint?
<uses-permissionAndroid:name="android.permission.ACCESS_WIFI_STATE"></uses-permission>
<uses-permission android:name="android.permission.INTERNET"></uses-permission>

然后修改/res/layout/main.xml，如下。

复制到剪贴板XML/HTML代码

1. viewplaincopytoclipboardprint?
2. <TextView
3. android:id="@+id/hello"
4. android:layout_width="fill_parent"
5. android:layout_height="wrap_content"
6. />

主要代码如下（GetIPMAC.Java）：

复制到剪贴板Java代码

1. viewplaincopytoclipboardprint?
2. packageexp.getipmac;
3. importjava.net.InetAddress;
4. importjava.net.NetworkInterface;
5. importjava.net.SocketException;
6. importjava.util.Enumeration;
7. importandroid.app.Activity;
8. importandroid.content.Context;
9. importandroid.net.wifi.WifiInfo;
10. importandroid.net.wifi.WifiManager;
11. importandroid.os.Bundle;
12. importandroid.util.Log;
13. importandroid.widget.TextView;
14. publicclassGetIPMACextendsActivity{
15. publicstaticStringhostip;//本机IP
16. publicstaticStringhostmac;//本机MAC
18. /**Calledwhentheactivityisfirstcreated.*/
19. @Override
20. publicvoidonCreate(BundlesavedInstanceState){
21. super.onCreate(savedInstanceState);
22. setContentView(R.layout.main);
23. TextViewtv=(TextView)findViewById(R.id.hello);
25. hostip=getLocalIpAddress();//获取本机IP
26. hostmac=getLocalMacAddress();//获取本机MAC
27. /*显示本机IP和MAC*/
28. tv.setText("HostIP:"+hostip+"\nHostMAC:"+hostmac);
29. /*在调试信息中输出本机IP和MAC*/
30. if(hostip!=null)Log.d("GetIPMAC",hostip);
31. elseLog.d("GetIPMAC","null");
32. Log.d("GetIPMAC",hostmac);
33. }
35. publicStringgetLocalIpAddress(){
36. try{
37. for(Enumeration<NetworkInterface>en=NetworkInterface
38. .getNetworkInterfaces();en.hasMoreElements();){
39. NetworkInterfaceintf=en.nextElement();
40. for(Enumeration<InetAddress>enumIpAddr=intf
41. .getInetAddresses();enumIpAddr.hasMoreElements();){
42. InetAddressinetAddress=enumIpAddr.nextElement();
43. if(!inetAddress.isLoopbackAddress()){
44. returninetAddress.getHostAddress().toString();
45. }
46. }
47. }
48. }catch(SocketExceptionex){
49. Log.e("WifiPreferenceIpAddress",ex.toString());
50. }
51. returnnull;
52. }
54. publicStringgetLocalMacAddress(){
55. WifiManagerwifi=(WifiManager)getSystemService(Context.WIFI_SERVICE);
56. WifiInfoinfo=wifi.getConnectionInfo();
57. returninfo.getMacAddress();
58. }
59. }

运行效果：