ip_white_list.java

	public String getIpAddr(HttpServletRequest request) {
		String ip = request.getHeader("x-forwarded-for"); 
		AddrLog.debug("x-forwarded-for clientIP:"+ip);
		AddrLog.debug("remoteAddr:"+request.getRemoteAddr());
		
		if(ip !=null && !ip.equals("") && ip.length() > 0){
            //获取第一个ip
			String[] ipList = ip.split(" ");
			if(ipList.length > 0){
				ip = ipList[0];
			}
		}
		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; 
	}