我做了一个网站,如何获取客户端登入时客户端的ip,求大神指教
3条回答 默认 最新
- a_jian 2013-11-15 00:45关注
/** * 通过HttpServletRequest返回IP地址 * @param request HttpServletRequest * @return ip String * @throws Exception */ public String getIpAddr(HttpServletRequest request) throws Exception { 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.getHeader("HTTP_CLIENT_IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("HTTP_X_FORWARDED_FOR"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } return ip; } /** * 通过IP地址获取MAC地址 * @param ip String,127.0.0.1格式 * @return mac String * @throws Exception */ public String getMACAddress(String ip) throws Exception { String line = ""; String macAddress = ""; final String MAC_ADDRESS_PREFIX = "MAC Address = "; 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(ip)) { 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; } //获取非本地IP的MAC地址 try { Process p = Runtime.getRuntime().exec("nbtstat -A " + ip); InputStreamReader isr = new InputStreamReader(p.getInputStream()); BufferedReader br = new BufferedReader(isr); while ((line = br.readLine()) != null) { if (line != null) { int index = line.indexOf(MAC_ADDRESS_PREFIX); if (index != -1) { macAddress = line.substring(index + MAC_ADDRESS_PREFIX.length()).trim().toUpperCase(); } } } br.close(); } catch (IOException e) { e.printStackTrace(System.out); } return macAddress; }
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