java獲取本機IP地址，非127.0.0.1

綜合了網上找的代碼，整理的，Windows和Linux都可以用。

   
   
  
  
          
 
           
 
            
 
             
 
            
 
            
 
             
 
              private static String getHostIp(){ 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              try{ 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               Enumeration<NetworkInterface> allNetInterfaces = NetworkInterface.getNetworkInterfaces(); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              while (allNetInterfaces.hasMoreElements()){ 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               NetworkInterface netInterface = (NetworkInterface) allNetInterfaces.nextElement(); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               Enumeration<InetAddress> addresses = netInterface.getInetAddresses(); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              while (addresses.hasMoreElements()){ 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               InetAddress ip = (InetAddress) addresses.nextElement(); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              if (ip != 
              null 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               && ip 
              instanceof Inet4Address 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               && !ip.isLoopbackAddress() 
              //loopback地址即本機地址，IPv4的loopback范圍是127.0.0.0 ~ 127.255.255.255 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               && ip.getHostAddress().indexOf( 
              ":")==- 
              1){ 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               System.out.println( 
              "本機的IP = " + ip.getHostAddress()); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              return ip.getHostAddress(); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               } 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               } 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               } 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               } 
              catch(Exception e){ 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               e.printStackTrace(); 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               } 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             
 
              return 
              null; 
             
 
            
 
           
 
            
 
             
 
            
 
            
 
             

               }