IPUtil工具类，获取本机、远程IP
http://my.oschina.net/yongyi/blog/498781
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Java代码 import java.net.InetAddress; import java.net.NetworkInterface; import java.net.SocketException; import java.util.Enumeration; import javax.servlet.http.HttpServletRequest; /** * IP工具类 * @author geeksun * 2011-9-23 */ public class IpUtil { /** * @param 获取远程IP * @return IP Address */ public static String getIpAddrByRequest(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(); } return ip; } /** * @return 获取本机IP * @throws SocketException */ public static String getRealIp() throws SocketException { String localip = null;// 本地IP，如果没有配置外网IP则返回它 String netip = null;// 外网IP Enumeration<NetworkInterface> netInterfaces = NetworkInterface.getNetworkInterfaces(); InetAddress ip = null; boolean finded = false;// 是否找到外网IP while (netInterfaces.hasMoreElements() && !finded) { NetworkInterface ni = netInterfaces.nextElement(); Enumeration<InetAddress> address = ni.getInetAddresses(); while (address.hasMoreElements()) { ip = address.nextElement(); if (!ip.isSiteLocalAddress() && !ip.isLoopbackAddress() && ip.getHostAddress().indexOf(":") == -1) {// 外网IP netip = ip.getHostAddress(); finded = true; break; } else if (ip.isSiteLocalAddress() && !ip.isLoopbackAddress() && ip.getHostAddress().indexOf(":") == -1) {// 内网IP localip = ip.getHostAddress(); } } } if (netip != null && !"".equals(netip)) { return netip; } else { return localip; } } } |
