c# , .net 判断是否是移动端，是否是微信，支付宝，QQ，是什么系统等

仅支持web项目

第一步：拿到请求上下文

我是项目是MVC项目

方法一：

var UserAgentText= Request.UserAgent;

方法二：

var request = Request.Headers;string UserAgentText= request["User-Agent"];

第二步：获取设备信息

 UserAgentDeviceInfoModel userAgentDeviceInfoModel = UserAgentHelp.GetDeviceInfo(UserAgentText); 

示例：

    public class UserAgentExecute    { public static void Execute() {     List listStr = new List();     /【电脑-谷歌浏览器信息】User-Agent/     listStr.Add("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.104 Safari/537.36");     /【电脑-360浏览器信息】User-Agent/     listStr.Add("Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.198 Safari/537.36");     /【手机微信-浏览器信息】User-Agent/     listStr.Add("Mozilla/5.0 (Linux; Android 10; M2002J9E Build/QKQ1.191222.002; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/86.0.4240.99 XWEB/3209 MMWEBSDK/20220204 Mobile Safari/537.36 MMWEBID/3181 MicroMessenger/8.0.20.2100(0x2800149A) Process/toolsmp WeChat/arm64 Weixin NetType/WIFI Language/zh_CN ABI/arm64");     /【苹果手机微信-浏览器信息】User-Agent/     listStr.Add("Mozilla/5.0 (iPhone; CPU iPhone OS 15_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 MicroMessenger/8.0.18(0x1800123f) NetType/WIFI Language/zh_CN");     /【手机QQ-浏览器信息】User-Agent/     listStr.Add("Mozilla/5.0 (Linux; Android 10; M2002J9E Build/QKQ1.191222.002; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/89.0.4389.72 MQQBrowser/6.2 TBS/045913 Mobile Safari/537.36 V1_AND_SQ_8.8.83_2654_YYB_D A_8088300 PA QQ/8.8.83.7540 NetType/WIFI WebP/0.3.0 Pixel/1080 StatusBarHeight/70 SimpleUISwitch/0 QQTheme/1000 InMagicWin/0 StudyMode/0 CurrentMode/0 CurrentFontScale/1.0 GlobalDensityScale/0.9818182 AppId/537114460");     /【苹果手机-QQ-浏览器信息】User-Agent/     listStr.Add("Mozilla/5.0 (iPhone; CPU iPhone OS 15_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/19E241 QQ/8.8.85.636 V1_IPH_SQ_8.8.85_1_APP_A Pixel/1170 MiniAppEnable SimpleUISwitch/1 StudyMode/0 CurrentMode/1 CurrentFontScale/1.000000 QQTheme/2921 AppId/537115277 Core/WKWebView Device/Apple(iPhone 13) NetType/WIFI QBWebViewType/1 WKType/1");     /【手机支付宝-浏览器信息】User-Agent/     listStr.Add("Mozilla/5.0 (Linux; U; Android 10; zh-CN; M2002J9E Build/QKQ1.191222.002) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/69.0.3497.100 UWS/3.22.2.43 Mobile Safari/537.36 UCBS/3.22.2.43_220223200704 NebulaSDK/1.8.100112 Nebula AlipayDefined(nt:WIFI,ws:393|0|2.75) AliApp(AP/10.2.58.8000) AlipayClient/10.2.58.8000 Language/zh-Hans useStatusBar/true isConcaveScreen/true Region/CNAriver/1.0.0");     /【苹果手机-支付宝-浏览器信息】User-Agent/     listStr.Add("Mozilla/5.0 (iPhone; CPU iPhone OS 15_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/19E241 Ariver/1.1.0 AliApp(AP/10.2.59.2500) Nebula WK RVKType(1) AlipayDefined(nt:WIFI,ws:390|780|3.0) AlipayClient/10.2.59.2500 Alipay Language/zh-Hans Region/CN NebulaX/1.0.0");     UserAgentDeviceInfoModel userAgentDeviceInfoModel = null;     foreach (string UserAgentText in listStr)     {  userAgentDeviceInfoModel = UserAgentHelp.GetDeviceInfo(UserAgentText);   Console.WriteLine(userAgentDeviceInfoModel.Remark);     } }    }

结果：

系统：Windows；应用名称：unknown；是否移动端：False；系统：Windows；应用名称：unknown；是否移动端：False；系统：Android；应用名称：WeChat；是否移动端：True；系统：iPhone；应用名称：WeChat；是否移动端：True；系统：Android；应用名称：QQ；是否移动端：True；系统：iPhone；应用名称：QQ；是否移动端：True；系统：Android；应用名称：Alipay；是否移动端：True；系统：iPhone；应用名称：Alipay；是否移动端：True；

核心帮助类UserAgentHelp：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace test1.Request.UserAgent{   public class UserAgentHelp    { /// 
 /// 获取设备信息 /// 
 ///  ///  public static UserAgentDeviceInfoModel GetDeviceInfo(string UserAgentText) {     UserAgentDeviceInfoModel userAgentDeviceInfoModel = new UserAgentDeviceInfoModel()     {  System = ChackSystemInfo(UserAgentText),  App = ChackAppInfo(UserAgentText),  IsMobile = UserAgentText.Contains("Mobile")     };     userAgentDeviceInfoModel.Remark = $"系统：{userAgentDeviceInfoModel.System}；应用名称：{userAgentDeviceInfoModel.App}；是否移动端：{userAgentDeviceInfoModel.IsMobile}；";     return userAgentDeviceInfoModel; } /// 
 /// 检查系统信息 /// 
 ///  ///  private static DeviceSystemEnum ChackSystemInfo(string str) {     if (str.Contains("Android"))     {  return DeviceSystemEnum.Android;     }     else if (str.Contains("iPhone"))     {  return DeviceSystemEnum.iPhone;     }     else if (str.Contains("Windows"))     {  return DeviceSystemEnum.Windows;     }     else     {  return DeviceSystemEnum.unknown;//未知     } } /// 
 /// 检查应用信息 /// 
 ///  ///  private static DeviceAppEnum ChackAppInfo(string str) {     if (str.Contains("MicroMessenger"))     {  return DeviceAppEnum.WeChat;     }     else if (str.Contains("AlipayClient"))     {  return DeviceAppEnum.Alipay;     }     else if (str.Contains("QQ"))     {  return DeviceAppEnum.QQ;     }     else     {  return DeviceAppEnum.unknown;//未知     } }    }    /// 
    /// 用户请求的设备信息    /// 
    public class UserAgentDeviceInfoModel    { /// 
 /// 系统信息 /// 
 public DeviceSystemEnum System { set; get; } /// 
 /// 应用信息 /// 
 public DeviceAppEnum App { set; get; } /// 
 /// 是否移动端 /// 
 public bool IsMobile { set; get; } /// 
 /// 备注信息 /// 
 public string Remark { set; get; }    }    /// 
    /// 系统信息枚举    /// 
    public enum DeviceSystemEnum    { Android, iPhone, Windows, /// 
 /// 未知 /// 
 unknown,    }    /// 
    /// 应用名称信息枚举    /// 
    public enum DeviceAppEnum    { /// 
 /// 微信-(判断字段MicroMessenger) /// 
 WeChat, /// 
 /// 支付宝-(判断字段AlipayClient) /// 
 Alipay, /// 
 /// qq-(判断字段QQ) /// 
 QQ, /// 
 /// 未知 /// 
 unknown,    }}

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