获取 IP 地址，浏览器类型 MVC 5答案

【问题标题】：Get IP Address, Browser Type MVC 5获取 IP 地址，浏览器类型 MVC 5
【发布时间】：2015-09-07 11:48:29
【问题描述】：

我需要在 MVC 5 中获取本地系统 IP 地址和浏览器代理（firefox、chorme、ie 等）。搜索在 MVC5 中不起作用的 Google Request.ServerVariables["REMOTE_ADDR"]

【问题讨论】：

Request.Browser 是您需要检查浏览器信息的内容。 Request.UserHostAddress 用于 IP 地址。在这两种情况下，您可能无法保证正确的信息，因为代理不会为您提供客户端机器和浏览器的正确 IP 地址用户代理始终可以被操纵。如果我的观点对您有帮助，请告诉我。

标签： asp.net-mvc-5

【解决方案1】：

你正在寻找类似获取IP地址的东西

HttpRequest.UserHostAddress Property

并检查此浏览器检测51Degrees.Mobi Foundation

【讨论】：

【解决方案2】：

获取客户端IP地址

var IPAddress = Request.ServerVariables["HTTP_X_FORWARDED_FOR"];
if (string.IsNullOrEmpty(IPAddress))
{
    IPAddress = Request.ServerVariables["REMOTE_ADDR"];
}

获取客户端用户代理。

var userAgent = Request.UserAgent;

【讨论】：

【解决方案3】：

要获取 IP 地址，请使用以下代码：

public static string GetIPAddress(HttpRequestBase request)
    {
        string ip;
        try
        {
            ip = request.ServerVariables["HTTP_X_FORWARDED_FOR"];
            if (!string.IsNullOrEmpty(ip))
            {
                if (ip.IndexOf(",") > 0)
                {
                    string[] ipRange = ip.Split(',');
                    int le = ipRange.Length - 1;
                    ip = ipRange[le];
                }
            }
            else
            {
                ip = request.UserHostAddress;
            }
        }
        catch { ip = null; }

        return ip;
    }

https://stackoverflow.com/a/7348761/4568359

================================================ ==================

以及获取浏览器信息：

System.Web.HttpBrowserCapabilities browser = Request.Browser;
string brw_info = "Browser Capabilities\n"
    + "Type = "                    + browser.Type + "\n"
    + "Name = "                    + browser.Browser + "\n"
    + "Version = "                 + browser.Version + "\n"
    + "Major Version = "           + browser.MajorVersion + "\n"
    + "Minor Version = "           + browser.MinorVersion + "\n"
    + "Platform = "                + browser.Platform + "\n"
    + "Is Beta = "                 + browser.Beta + "\n"
    + "Is Crawler = "              + browser.Crawler + "\n"
    + "Is AOL = "                  + browser.AOL + "\n"
    + "Is Win16 = "                + browser.Win16 + "\n"
    + "Is Win32 = "                + browser.Win32 + "\n"
    + "Supports Frames = "         + browser.Frames + "\n"
    + "Supports Tables = "         + browser.Tables + "\n"
    + "Supports Cookies = "        + browser.Cookies + "\n"
    + "Supports VBScript = "       + browser.VBScript + "\n"
    + "Supports JavaScript = "     + 
        browser.EcmaScriptVersion.ToString() + "\n"
    + "Supports Java Applets = "   + browser.JavaApplets + "\n"
    + "Supports ActiveX Controls = " + browser.ActiveXControls 
          + "\n"
    + "Supports JavaScript Version = " +
        browser["JavaScriptVersion"] + "\n";

https://msdn.microsoft.com/en-us/library/3yekbd5b.aspx

【讨论】：

（不确定如何看待 HTTP_X_FORWARDED_FOR 和 spoofing。）