Java EE通过代理获取IP

Question

如果某人正在使用 "ultrasurf" 或任何其他程序，是否有任何方法可以获取某人的 IP？

到目前为止我得到了这个代码：

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();
    }

我是不是漏掉了一些页眉？

Answer 1

不行，无法获取源IP。

对于隐藏在匿名网络、公司代理或家中简单路由器后面的用户来说都不是。

Java EE通过代理获取IP

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