PG_RMAN使用手册
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Boblim android中判断网络连接是否可用及监控网络状态 https://www.cnblogs.com/fnlingnzb-learner/p/7531811.html
LAN/WAN/WLAN/WWAN区别总结 https://blog.csdn.net/wenlong199/article/details/104521107
一.LAN/WAN/WLAN/WWAN区别总结
LAN: Local Area Network : 局域网
WAN: Wide Area Network, 广域网
WLAN: Wireless LAN, 无线局域网
WWAN: Wireless WAN: 无线广域网
二.以太网监听广播
2.1.AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.gatsby.networktest" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="22" android:targetSdkVersion="22" /> <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" /> <uses-permission android:name="android.permission.CHANGE_WIFI_MULTICAST_STATE" /> <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" /> <uses-permission android:name="android.permission.INTERNET" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <receiver android:name=".MyBroadcast" > <intent-filter> <action android:name="android.intent.action.BOOT_COMPLETED" /> <action android:name="android.net.wifi.STATE_CHANGE" /> <action android:name="android.Net.wifi.WIFI_STATE_CHANGED" /> <!-- 网络更改广播 --> <action android:name="android.net.conn.CONNECTIVITY_CHANGE" /> </intent-filter> </receiver> <service android:name=".NetworkService" > </service> </application> </manifest>
2.2.MyBroadcast.java
package com.gatsby.networktest; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.net.ConnectivityManager; import android.net.NetworkInfo; import android.util.Log; public class MyBroadcast extends BroadcastReceiver { static final String BOOT_COMPLETED = "android.intent.action.BOOT_COMPLETED"; public int NET_ETHERNET = 1; public int NET_WIFI = 2; public int NET_NOCONNECT = 0; @Override public void onReceive(Context context, Intent intent) { // TODO Auto-generated method stub String action = intent.getAction(); if (action.equals(BOOT_COMPLETED)) { Intent startService = new Intent(context, NetworkService.class); Log.d("gatsby", "BOOT_COMPLETED Broadcast-----------!!!!"); context.startService(startService); } else if (action.equals(ConnectivityManager.CONNECTIVITY_ACTION) || action.equals("android.net.conn.CONNECTIVITY_CHANGE")) { switch (isNetworkAvailable(context)) { case 1: Log.d("gatsby", "-----------networktest---------ethernetState"); Intent etherIntent = new Intent(); etherIntent.setAction("com.xinhua.etherIntent"); context.sendBroadcast(etherIntent); break; case 2: Log.d("gatsby", "-----------networktest---------wifinetState"); Intent wifiIntent = new Intent(); wifiIntent.setAction("com.xinhua.wifiIntent"); context.sendBroadcast(wifiIntent); break; case 0: Log.d("gatsby", "-----------networktest---------NONO"); break; default: break; } } } private int isNetworkAvailable(Context mcontext) { ConnectivityManager connectMgr = (ConnectivityManager) mcontext.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo ethNetInfo = connectMgr.getNetworkInfo(ConnectivityManager.TYPE_ETHERNET); NetworkInfo wifiNetInfo = connectMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI); if (ethNetInfo != null && ethNetInfo.isConnected()) { return NET_ETHERNET; } else if (wifiNetInfo != null && wifiNetInfo.isConnected()) { return NET_WIFI; } else { return NET_NOCONNECT; } } }
三.节点判断以太网插拔状态 cat /sys/class/net/eth0/carrier
四.ping 外网
public static final boolean ping() { String result = null; try { String ip = "www.baidu.com"; Process p = Runtime.getRuntime().exec("ping -c 3 -w 100 " + ip); int status = p.waitFor(); if (status == 0) { result = "success"; return true; } else { result = "failed"; } } catch (IOException e) { result = "IOException"; } catch (InterruptedException e) { result = "InterruptedException"; } finally { Log.d("gatsby", " ping result = " + result); } return false; }
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