private String getLoginUserIP(){
		
		HttpServletRequest req=(HttpServletRequest)ServletActionContext.getRequest();
		String lastLoginIP = req.getHeader("x-forwarded-for"); 
		if(lastLoginIP == null || lastLoginIP.length() == 0 
				|| "unknown".equalsIgnoreCase(lastLoginIP)) { 
			lastLoginIP = req.getHeader("Proxy-Client-IP"); 
		} 
		if(lastLoginIP == null || lastLoginIP.length() == 0 
				|| "unknown".equalsIgnoreCase(lastLoginIP)) { 
			lastLoginIP = req.getHeader("WL-Proxy-Client-IP"); 
		} 
		if(lastLoginIP == null || lastLoginIP.length() == 0 
				|| "unknown".equalsIgnoreCase(lastLoginIP)) { 
			lastLoginIP = req.getRemoteAddr(); 
		}
		return lastLoginIP;
	}