如何读取android设备的网掩码和默认网关
//获取mac地址 public String getLocalMacAddress() { WifiManager wifi = (WifiManager) getSystemService(Context.WIFI_SERVICE); WifiInfo info = wifi.getConnectionInfo(); return info.getMacAddress(); } //获取ip地址 public 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; }
android.net package中的DdhcpInfo类，存储当前网络状态的状态参数信息，但是返回值是integer 类型，需要自己转换一下
package com.schogini.dhcp; import android.app.Activity; import android.content.Context; import android.os.Bundle; import android.widget.TextView; import android.net.*; import android.net.wifi.WifiManager; public class dhcpInfo extends Activity { public String s_dns1 ; public String s_dns2; public String s_gateway; public String s_ipAddress; public String s_leaseDuration; public String s_netmask; public String s_serverAddress; TextView info; DhcpInfo d; WifiManager wifii; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); wifii= (WifiManager) getSystemService(Context.WIFI_SERVICE); d=wifii.getDhcpInfo(); s_dns1="DNS 1: "+String.valueOf(d.dns1); s_dns2="DNS 2: "+String.valueOf(d.dns2); s_gateway="Default Gateway: "+String.valueOf(d.gateway); s_ipAddress="IP Address: "+String.valueOf(d.ipAddress); s_leaseDuration="Lease Time: "+String.valueOf(d.leaseDuration); s_netmask="Subnet Mask: "+String.valueOf(d.netmask); s_serverAddress="Server IP: "+String.valueOf(d.serverAddress); //dispaly them info= (TextView) findViewById(R.id.infolbl); info.setText("Network Info\n"+s_dns1+"\n"+s_dns2+"\n"+s_gateway+"\n"+s_ipAddress+"\n"+s_leaseDuration+"\n"+s_netmask+"\n"+s_serverAddress); } }
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.schogini.dhcp" android:versionCode="1" android:versionName="1.0"> <uses-sdk android:minSdkVersion="4" /> <application android:icon="@drawable/icon" android:label="@string/app_name"> <activity android:name=".dhcpInfo" 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> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" /> </manifest>