Java 获取客服端ip地址

/**
 * <html>
 * <body>
 *  <P> Copyright 1994 JsonInternational</p>
 *  <p> All rights reserved.</p>
 *  <p> Created on 19941115</p>
 *  <p> Created by Jason</p>
 *  </body>
 * </html>
 */
package cn.ucaner.alpaca.framework.utils.ip;

import javax.servlet.http.HttpServletRequest;

/**
* @Package：cn.ucaner.framework.utils   
* @ClassName：IPAddress   
* @Description：   <p> ip地址</p>
* @Author： - Jason 
* @CreatTime：2017年8月30日 下午2:12:19   
* @Modify By：   
* @ModifyTime：  
* @Modify marker：   
* @version    V1.0
 */
public class IPAddress {
	
	/**
	 * 获取客户端ip地址
	 * @param request
	 * @return
	 */
	public static String getClientIpAddress(HttpServletRequest request) {
		String ip = request.getHeader("X-Forwarded-For");
		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
			ip = request.getHeader("X-Real-IP");
		}
		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
			ip = request.getHeader("Cdn-Src-Ip");
		}
		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.indexOf(",") > -1) {
			ip = ip.substring(0, ip.indexOf(","));
		}
		return ip;
	}
}