获取当前网络IPv4地址

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最近在做一个项目，需要获取当前所连接网络的IPv4地址，然后自己查了查资料得到如下结论，亲测完美！！！

代码如下：

import java.util.Enumeration;
import java.net.Inet4Address;
import java.net.NetworkInterface;
import java.net.InetAddress;

public class test{
    public static void main(String [] args){
        Enumeration allNetInterfaces = null;  
        try {  
            allNetInterfaces = NetworkInterface.getNetworkInterfaces();  
        } catch (java.net.SocketException e) {  
            e.printStackTrace();  
        }  
        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)  
                {  
                    if(ip.getHostAddress().equals("127.0.0.1")){
                        continue;
                    }
                    System.out.println("/u672c/u673a/u7684IP = " + ip.getHostAddress());  
                    return ;
                }  
            }  
        }  
        System.out.println("网络无连接！");
    }
}

运行结果：

希望对大家能有所帮助！