话不多说，github地址：https://github.com/javertWang/ToolClass，觉得满意，请给github标个星，笔芯 java获取ip地址-获取请求的ip，mac地址:IpUtil
package com.util.net; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.net.InetAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.net.UnknownHostException; import javax.servlet.http.HttpServletRequest; public class IpUtil { /** * 获取登录用户IP地址 * * @param request * @return */ public static String getIpAddr(HttpServletRequest request) { String ip = request.getHeader("x-forwarded-for"); if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("WL-Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } if (ip.equals("0:0:0:0:0:0:0:1")) { ip = "本地"; } return ip; } /** * 根据IP地址获取mac地址 * * @param ipAddress * 127.0.0.1 * @return * @throws SocketException * @throws UnknownHostException */ public static String getLocalMac(String ipAddress) throws SocketException, UnknownHostException { // TODO Auto-generated method stub String str = ""; String macAddress = ""; final String LOOPBACK_ADDRESS = "127.0.0.1"; // 如果为127.0.0.1,则获取本地MAC地址。 if (LOOPBACK_ADDRESS.equals(ipAddress)) { InetAddress inetAddress = InetAddress.getLocalHost(); // 貌似此方法需要JDK1.6。 byte[] mac = NetworkInterface.getByInetAddress(inetAddress) .getHardwareAddress(); // 下面代码是把mac地址拼装成String StringBuilder sb = new StringBuilder(); for (int i = 0; i < mac.length; i++) { if (i != 0) { sb.append("-"); } // mac[i] & 0xFF 是为了把byte转化为正整数 String s = Integer.toHexString(mac[i] & 0xFF); sb.append(s.length() == 1 ? 0 + s : s); } // 把字符串所有小写字母改为大写成为正规的mac地址并返回 macAddress = sb.toString().trim().toUpperCase(); return macAddress; } else { // 获取非本地IP的MAC地址 try { System.out.println(ipAddress); Process p = Runtime.getRuntime() .exec("nbtstat -A " + ipAddress); System.out.println("===process==" + p); InputStreamReader ir = new InputStreamReader(p.getInputStream()); BufferedReader br = new BufferedReader(ir); while ((str = br.readLine()) != null) { if (str.indexOf("MAC") > 1) { macAddress = str.substring(str.indexOf("MAC") + 9, str.length()); macAddress = macAddress.trim(); System.out.println("macAddress:" + macAddress); break; } } p.destroy(); br.close(); ir.close(); } catch (IOException ex) { } return macAddress; } } }