负载均衡下获取客户端ip地址

最新推荐文章于 2023-12-08 18:14:08 发布

原创最新推荐文章于 2023-12-08 18:14:08 发布 · 1.5k 阅读

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#负载均衡 #客户端ip

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本文介绍了一种从HTTP请求中获取客户端IP地址的方法，包括远程地址、代理客户端IP和Web服务器代理IP的优先级解析。

public static String getRequestIpAddress(HttpServletRequest request) {
		String ipAddress = null;
		// ipAddress = this.getRequest().getRemoteAddr();
		ipAddress = request.getHeader("x-forwarded-for");
		if (ipAddress == null || ipAddress.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddress)) {
			ipAddress = request.getHeader("Proxy-Client-IP");
		}
		if (ipAddress == null || ipAddress.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddress)) {
			ipAddress = request.getHeader("WL-Proxy-Client-IP");
		}
		if (ipAddress == null || ipAddress.length() == 0
				|| "unknown".equalsIgnoreCase(ipAddress)) {
			ipAddress = request.getRemoteAddr();
			if (ipAddress.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();
				}
				ipAddress = inet.getHostAddress();
			}
		}
		return ipAddress;
	}