java获取HttpServletRequest 的客户端ip
2021-06-06 00:04
标签:转发 代理 tps 请求头 log nbsp span 其他 rem 常见的问题,记录操作日志中发现,getRemoteAddr取到的客户端的ip地址不是真实的ip,需要解析请求头中的信息获取正确ip。 查了下,对应的header头解释如下。 x-forwarded-for只是代理的其中一种,最早Squid 引入,还有很多其他的字段 Proxy-Client-IP:使用apache代理 WL-Proxy-Client-IP:使用weblogic时 HTTP_CLIENT_IP和HTTP_X_FORWARDED_FOR:有一些代理 X-Real-IP:Nginx代理 如果通过了多级反向代理的话,X-Forwarded-For的值并不止一个,而是一串Ip值,取X-Forwarded-For中第一个非unknown的有效IP字符串。 每经过一个代理做一次转发,x_forwarded_for就会在后面追加一个代理IP,并且以转发顺序排序。 java获取HttpServletRequest 的客户端ip 标签:转发 代理 tps 请求头 log nbsp span 其他 rem 原文地址:https://www.cnblogs.com/lnlvinso/p/14618845.htmlpublic static String getIpAddress(HttpServletRequest request) {
String ip = request.getHeader("X-Forwarded-For");
if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(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.getHeader("HTTP_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("X-Real-IP");
}
if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {
ip = request.getRemoteAddr();
}
} else {
String[] ips = ip.split(",");
for (int index = 0; index ) {
String strIp = ips[index];
if (!(UNKNOWN.equalsIgnoreCase(strIp))) {
ip = strIp;
break;
}
}
}
return ip;
}
文章标题:java获取HttpServletRequest 的客户端ip
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