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在JSP里,获取客户端的IP地址的方法是:request.getRemoteAddr(),这种方法在大部分情况下都是有效的。
但是在通过了 Apache,Squid等反向代理软件就不能获取到客户端的真实IP地址了。如果使用了反向代理软件,
用 request.getRemoteAddr()方法获取的IP地址是:127.0.0.1或 192.168.1.110,而并不是客户端的真实IP
/** * 获取Ip地址 * @return */ protected String getIpAddr() { HttpServletRequest request = ServletActionContext.getRequest(); 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.getRemoteAddr(); } return ip; }
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原文地址:http://www.cnblogs.com/WgsKing/p/4646628.html