https://blog.csdn.net/yinshuomail/article/details/81624648 获取本机真实 内网ip

GetRealLocalIP.java

package cn.java666.jobtracker.common;

import org.junit.Test;

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

/**
 * @author Geek
 * @date 2019-08-31 19:17:53
 *
 * 	获取本地真正的IP地址，即获得有线或者无线WiFi地址。
 * 	过滤虚拟机、蓝牙等地址
 */
public class GetRealLocalIP {
	
	@Test
	public void test1() {
		getRealIP();
	}
	
	/**
	 * 获取本地真正的IP地址，即获得有线或者无线WiFi地址。
	 * 过滤虚拟机、蓝牙等地址
	 */
	public static String getRealIP() {
		try {
			Enumeration<NetworkInterface> allNetInterfaces = NetworkInterface.getNetworkInterfaces();
			
			while (allNetInterfaces.hasMoreElements()) {
				NetworkInterface netInterface = allNetInterfaces.nextElement();
				
				// 去除回环接口，子接口，未运行的接口
				if (netInterface.isLoopback() || netInterface.isVirtual() || !netInterface.isUp()) {
					continue;
				}
				
				if (!netInterface.getDisplayName().contains("Intel") && !netInterface.getDisplayName().contains("Realtek")) {
					continue;
				}
				
				Enumeration<InetAddress> addresses = netInterface.getInetAddresses();
				// System.out.println(netInterface.getDisplayName());
				
				while (addresses.hasMoreElements()) {
					InetAddress ip = addresses.nextElement();
					if (ip != null) {
						// ipv4
						if (ip instanceof Inet4Address) {
							// System.out.println("ipv4 = " + ip.getHostAddress());
							return ip.getHostAddress();
						}
					}
				}
				break;
			}
		} catch (SocketException e) {
			System.err.println("Error when getting host ip address" + e.getMessage());
		}
		return null;
	}
}