java获取注册ip实例

话不多说，请看实例代码

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.getremoteaddr();
      }
      system.out.println("ip:"+ip);

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