private static String getIp(HttpServletRequest request){ String ip =request.getHeader("x-forwarded-for"); if (ip != null && ip.length() != 0 && !"unknown".equalsIgnoreCase(ip)){ if (ip.indexOf(",") != -1){ ip
时间: 2024-04-19 11:24:57 浏览: 14
= ip.substring(0, ip.indexOf(",")); } else { ip = ip; } } 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.getRemoteAddr(); } return ip; }
这段代码的作用是用于获取客户端的 IP 地址。它首先尝试从请求头中获取 "x-forwarded-for" 字段的值作为 IP 地址,如果没有获取到或者值为 "unknown",则尝试从其他请求头中获取 IP 地址,最后如果仍然没有获取到,则通过 request.getRemoteAddr() 方法获取 IP 地址。最终返回获取到的 IP 地址。