request获得访问路径，端口，ip等

最新推荐文章于 2025-09-14 11:31:34 发布

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本文介绍了在Java中如何通过HttpServletRequest对象获取客户端的真实IP地址，包括直接访问和使用代理的情况。通过检查多个请求头，如X-Forwarded-For、Proxy-Client-IP等，确保即使在复杂的网络环境中也能准确获取到客户端的IP。

 System.out.println(request.getLocalAddr());

 System.out.println(request.getServerName());

 System.out.println(request.getRemoteAddr());//获得访问该服务的客户端的ip地址，大多数时候是真实的，但是当使用了代理，则不正确

 System.out.println(request.getRequestURI());

 System.out.println(request.getRequestURL());

 System.out.println(request.getServerPort());



127.0.0.1

127.0.0.1

127.0.0.1

/certification/ifCert

http://127.0.0.1:8089/certification/ifCert

8089

获得客户端真实ip

//获得客户端真是ip
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("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.getRemoteAddr();
}