package socket; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.net.Inet4Address; import java.net.InetAddress; import java.net.NetworkInterface; import java.net.UnknownHostException; import java.util.Enumeration; public class TestSocket { public static void main(String[] args) throws IOException { // InetAddress host = InetAddress.getLocalHost(); // String ip = host.getHostAddress(); // // InetAddress host4 = Inet4Address.getLocalHost(); // String ip4 = host4.getHostAddress(); // System.out.println("ip is :"+ip); // Process p = Runtime.getRuntime().exec("ping 192.168.11.1"); // BufferedReader br = new BufferedReader(new // InputStreamReader(p.getInputStream())); // String line = null; // StringBuilder sb = new StringBuilder(); // while((line = br.readLine()) !=null ){ // if(line.length()!=0) sb.append(line+"\r\n"); // } // // System.out.println("返回:"+sb.toString()); Enumeration allNetInterfaces = NetworkInterface.getNetworkInterfaces(); InetAddress ip = null; while (allNetInterfaces.hasMoreElements()) { NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement(); System.out.println(netInterface.getName()); Enumeration addresses = netInterface.getInetAddresses(); while (addresses.hasMoreElements()) { ip = (InetAddress) addresses.nextElement(); if (ip != null && ip instanceof Inet4Address) { System.out.println("本机的IP = " + ip.getHostAddress()); } } } } }