起因是公司一个springboot项目启动类打印了本机IP地址加端口号，方便访问项目页面，但是发现打印出来的不是“无线局域网”的ip而是“以太网适配器”ip，如下图所示
这样就导致后续本地起项目连接xxl-job注册节点的时候因为不在同个局域网下ping不通出问题，所以需要解决一下。
一、直接获取本机IP（会受到虚拟机干扰）
public static String getInterIP1() throws Exception { return InetAddress.getLocalHost().getHostAddress();}二、获取本机IP（排除虚拟机干扰）
public static InetAddress getLocalHostLANAddress() throws UnknownHostException { try { InetAddress candidateAddress = null; // 遍历所有的网络接口 for (Enumeration ifaces = NetworkInterface.getNetworkInterfaces(); ifaces.hasMoreElements();) { NetworkInterface iface = (NetworkInterface) ifaces.nextElement(); // 在所有的接口下再遍历IP for (Enumeration inetAddrs = iface.getInetAddresses(); inetAddrs.hasMoreElements();) { InetAddress inetAddr = (InetAddress) inetAddrs.nextElement(); if (!inetAddr.isLoopbackAddress()) {// 排除loopback类型地址 if (inetAddr.isSiteLocalAddress()) { // 如果是site-local地址，就是它了 return inetAddr; } else if (candidateAddress == null) { // site-local类型的地址未被发现，先记录候选地址 candidateAddress = inetAddr; } } } } if (candidateAddress != null) { return candidateAddress; } // 如果没有发现 non-loopback地址.只能用最次选的方案 InetAddress jdkSuppliedAddress = InetAddress.getLocalHost(); if (jdkSuppliedAddress == null) { throw new UnknownHostException("The JDK InetAddress.getLocalHost() method unexpectedly returned null."); } return jdkSuppliedAddress; } catch (Exception e) { UnknownHostException unknownHostException = new UnknownHostException( "Failed to determine LAN address: " + e); unknownHostException.initCause(e); throw unknownHostException; } }三、获取本机公网IP
public static String getOutIP() { try { URL whatismyip = new URL("http://checkip.amazonaws.com"); BufferedReader in = new BufferedReader(new InputStreamReader(whatismyip.openStream())); String ip = in.readLine(); return ip; } catch (Exception e) {} return "";}四、测试
public class IpTest { public static void main(String[] args) throws Exception { System.out.println("获取本机ip: " + getInterIP1());// System.out.println("getInterIP2: " + getInterIP2()); System.out.println("获取本机ip（排除虚拟机干扰）: " + String.valueOf(getLocalHostLANAddress()).substring(1));// System.out.println("getOutIPV4: " + getOutIPV4()); System.out.println("获取本机公网ip: " + getOutIP()); } public static String getInterIP1() throws Exception { return InetAddress.getLocalHost().getHostAddress(); } public static InetAddress getLocalHostLANAddress() throws UnknownHostException { try { InetAddress candidateAddress = null; // 遍历所有的网络接口 for (Enumeration ifaces = NetworkInterface.getNetworkInterfaces(); ifaces.hasMoreElements();) { NetworkInterface iface = (NetworkInterface) ifaces.nextElement(); // 在所有的接口下再遍历IP for (Enumeration inetAddrs = iface.getInetAddresses(); inetAddrs.hasMoreElements();) { InetAddress inetAddr = (InetAddress) inetAddrs.nextElement(); if (!inetAddr.isLoopbackAddress()) {// 排除loopback类型地址 if (inetAddr.isSiteLocalAddress()) { // 如果是site-local地址，就是它了 return inetAddr; } else if (candidateAddress == null) { // site-local类型的地址未被发现，先记录候选地址 candidateAddress = inetAddr; } } } } if (candidateAddress != null) { return candidateAddress; } // 如果没有发现 non-loopback地址.只能用最次选的方案 InetAddress jdkSuppliedAddress = InetAddress.getLocalHost(); if (jdkSuppliedAddress == null) { throw new UnknownHostException("The JDK InetAddress.getLocalHost() method unexpectedly returned null."); } return jdkSuppliedAddress; } catch (Exception e) { UnknownHostException unknownHostException = new UnknownHostException( "Failed to determine LAN address: " + e); unknownHostException.initCause(e); throw unknownHostException; } } public static String getOutIP() { try { URL whatismyip = new URL("http://checkip.amazonaws.com"); BufferedReader in = new BufferedReader(new InputStreamReader(whatismyip.openStream())); String ip = in.readLine(); return ip;// System.out.println("Public IP Address: " + ip); } catch (Exception e) {// System.out.println("Error occurred: " + e.getMessage()); } return ""; }}获取本机ip: 172.17.16.1获取本机ip（排除虚拟机干扰）: 192.168.100.100获取本机公网ip: 14.145.43.147这里打印出来的便对应上前言命令行截图里的ip信息，然后公网ip对应的是百度搜索ip查到的公网ip地址
五、手动禁用虚拟机排除干扰
除了用代码逻辑排除虚拟机干扰，我们也可以直接禁用电脑的虚拟机适配器。
步骤：
win+R devmgmt.msc 打开设备管理器找到网络适配器-Hyper-V Virtual 开头的 右键禁用
此时win+R cmd 输入ipconfig，可以看到已经没有虚拟机ip了
此时java使用
InetAddress.getLocalHost().getHostAddress()也可以获取到192.168开头的wifi地址了