ip获取注意

两种ip获取方式：

一：获取客户端的ip：

public String getIpAddress(HttpServletRequest request){
		String ip = request.getHeader("x-forwarded-for");
		if(ip==null||ip.length()==0||"unknown".equalsIgnoreCase(ip)){		//忽略大小写
			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;
	}

二：获取服务器端ip

InetAddress.getLocalHost().getHostAddress()