request获取ip
Posted ciscoo
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public static String getIp(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("X-Real-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } if (ip == null) { ip = ""; } if ("127.0.0.1".equals(ip) || "localhost".equalsIgnoreCase(ip) || "0:0:0:0:0:0:0:1".equals(ip)) { try { InetAddress addr = InetAddress.getLocalHost(); ip = addr.getHostAddress(); } catch (Exception e) { return ""; } } // 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) { // "***.***.***.***".length() = 15 if (ip.indexOf(",") > 0) { ip = ip.substring(0, ip.indexOf(",")); } } return ip; }
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