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  • java Request 获得用户IP地址

    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.getHeader("HTTP_X_FORWARDED_FOR");
    		}
    		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
    			ip = request.getHeader("HTTP_X_FORWARDED");
    		}
    		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
    			ip = request.getHeader("HTTP_X_CLUSTER_CLIENT_IP");
    		}
    		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_FORWARDED_FOR");
    		}
    		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
    			ip = request.getHeader("HTTP_FORWARDED");
    		}
    		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
    			ip = request.getHeader("HTTP_VIA");
    		}
    		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
    			ip = request.getHeader("REMOTE_ADDR");
    		}
    
    		if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
    			ip = request.getRemoteAddr();
    			if (ip.equals("127.0.0.1")) {
    				// 根据网卡取本机配置的IP
    				InetAddress inet = null;
    				try {
    					inet = InetAddress.getLocalHost();
    				} catch (UnknownHostException e) {
    					e.printStackTrace();
    				}
    				ip = inet.getHostAddress();
    			}
    		}
    		// 对于通过多个代理的情况,第一个IP为客户端真实IP,多个IP按照','分割
    		if (ip != null && ip.length() > 15) {
    			if (ip.indexOf(",") > 0) {
    				ip = ip.substring(0, ip.indexOf(","));
    			}
    		}
    		return ip;
    	}
    

      

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  • 原文地址:https://www.cnblogs.com/c9999/p/7978628.html
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