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ace-common/src/main/java/com/github/wxiaoqi/security/common/util/IpUtil.java

+package com.github.wxiaoqi.security.common.util;
+
+import java.net.InetAddress;
+import java.net.NetworkInterface;
+import java.util.Enumeration;
+
+import javax.servlet.http.HttpServletRequest;
+
+public class IpUtil {
+
+	/**
+	 * 获取服务器本地的ip地址
+	 * 
+	 * @return
+	 */
+	public static String getLocalIp() {
+		InetAddress ip = null;
+		String localIp = "127.0.0.2";
+		try {
+			Enumeration netInterfaces = NetworkInterface.getNetworkInterfaces();
+			while (netInterfaces.hasMoreElements()) {
+				NetworkInterface ni = (NetworkInterface) netInterfaces
+						.nextElement();
+				ip = (InetAddress) ni.getInetAddresses().nextElement();
+				if (!ip.isLoopbackAddress()
+						&& ip.getHostAddress().indexOf(":") == -1) {
+					localIp = ip.getHostAddress();
+					break;
+				}
+			}
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+		return localIp;
+	}
+
+	/**
+	 * 获取客户机的ip地址
+	 * 
+	 * @return
+	 */
+	public static String getClientIp(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 == 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");
+		}
+		// 如果是多级代理，那么取第一个ip为客户ip
+		if (ip != null && ip.indexOf(",") != -1) {
+			ip = ip.substring(ip.lastIndexOf(",") + 1, ip.length()).trim();
+		}
+		return ip;
+
+	}
+
+	public static long transIP2Int(String ip) {
+
+		String[] temp = ip.split("\\.");
+		int[] ipInt = new int[temp.length];
+
+		for (int i = 0; i < temp.length; i++) {
+			ipInt[i] = new Integer(temp[i]).intValue();
+		}
+
+		long ipNum = (long) ipInt[0] * 256 * 256 * 256 + ipInt[1] * 256 * 256
+				+ ipInt[2] * 256 + ipInt[3];
+
+		return ipNum;
+	}
+}