原 获取ip地址工具类

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1 代码如下：

package com.fyq.utils;

import javax.servlet.http.HttpServletRequest;

public class IpAddress {

	
	public static String getIpAddress(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");
	    }
	    if ((ip != null) && (ip.indexOf(",") != -1)) {
	      ip = ip.substring(ip.lastIndexOf(",") + 1, ip.length()).trim();
	    }
	    return ip;
	  }
	
	
}