.NET/C#实现识别用户访问设备的方法
本文实例讲述了.NET/C#实现识别用户访问设备的方法。分享给大家供大家参考，具体如下：
一、需求
需要获取到用户访问网站时使用的设备，根据不同设备返回不同类型的渲染页面。
二、实现前准备
通过NuGet把UAParser程序包添加到项目中
三、实现
新建UAParseUserAgent类文件，在这个文件中进行实现。
实现代码如下：
publicclassUAParserUserAgent
{
privatereadonlystaticuap.Parsers_uap;
privatestaticreadonlyRegexs_pdfConverterPattern=newRegex(@"wkhtmltopdf",RegexOptions.Compiled|RegexOptions.IgnoreCase|RegexOptions.CultureInvariant);
#regionMobileUAs,OS&Devices
privatestaticreadonlyHashSet<string>s_MobileOS=newHashSet<string>
{
"Android",
"iOS",
"WindowsMobile",
"WindowsPhone",
"WindowsCE",
"SymbianOS",
"BlackBerryOS",
"BlackBerryTabletOS",
"FirefoxOS",
"BrewMP",
"webOS",
"Bada",
"Kindle",
"Maemo"
};
privatestaticreadonlyHashSet<string>s_MobileBrowsers=newHashSet<string>
{
"Android",
"FirefoxMobile",
"OperaMobile",
"OperaMini",
"MobileSafari",
"AmazonSilk",
"webOSBrowser",
"MicroB",
"OviBrowser",
"NetFront",
"NetFrontNX",
"ChromeMobile",
"ChromeMobileiOS",
"UCBrowser",
"TizenBrowser",
"BaiduExplorer",
"QQBrowserMini",
"QQBrowserMobile",
"IEMobile",
"Polaris",
"ONEBrowser",
"iBrowserMini",
"NokiaServices(WAP)Browser",
"NokiaBrowser",
"NokiaOSSBrowser",
"BlackBerryWebKit",
"BlackBerry","Palm",
"PalmBlazer",
"PalmPre",
"TelecaBrowser",
"SEMC-Browser",
"PlayStationPortable",
"Nokia",
"MaemoBrowser",
"Obigo",
"Bolt",
"Iris",
"UP.Browser",
"Minimo",
"Bunjaloo",
"Jasmine",
"Dolfin",
"Polaris",
"Skyfire"
};
privatestaticreadonlyHashSet<string>s_MobileDevices=newHashSet<string>
{
"BlackBerry",
"MIPAD",
"iPhone",
"iPad",
"iPod",
"Kindle",
"KindleFire",
"Nokia",
"Lumia",
"Palm",
"DoCoMo",
"HPTouchPad",
"Xoom",
"Motorola",
"GenericFeaturePhone",
"GenericSmartphone"
};
#endregion
privatereadonlyHttpContextBase_httpContext;
privatestring_rawValue;
privateUserAgentInfo_userAgent;
privateDeviceInfo_device;
privateOSInfo_os;
privatebool?_isBot;
privatebool?_isMobileDevice;
privatebool?_isTablet;
privatebool?_isPdfConverter;
staticUAParserUserAgent()
{
s_uap=uap.Parser.GetDefault();
}
publicUAParserUserAgent(HttpContextBasehttpContext)
{
this._httpContext=httpContext;
}
publicstringRawValue
{
get
{
if(_rawValue==null)
{
if(_httpContext.Request!=null)
{
_rawValue=_httpContext.Request.UserAgent.ToString();
}
else
{
_rawValue="";
}
}
return_rawValue;
}
//for(unit)testpurpose
set
{
_rawValue=value;
_userAgent=null;
_device=null;
_os=null;
_isBot=null;
_isMobileDevice=null;
_isTablet=null;
_isPdfConverter=null;
}
}
publicvirtualUserAgentInfoUserAgent
{
get
{
if(_userAgent==null)
{
vartmp=s_uap.ParseUserAgent(this.RawValue);
_userAgent=newUserAgentInfo(tmp.Family,tmp.Major,tmp.Minor,tmp.Patch);
}
return_userAgent;
}
}
publicvirtualDeviceInfoDevice
{
get
{
if(_device==null)
{
vartmp=s_uap.ParseDevice(this.RawValue);
_device=newDeviceInfo(tmp.Family,tmp.IsSpider);
}
return_device;
}
}
publicvirtualOSInfoOS
{
get
{
if(_os==null)
{
vartmp=s_uap.ParseOS(this.RawValue);
_os=newOSInfo(tmp.Family,tmp.Major,tmp.Minor,tmp.Patch,tmp.PatchMinor);
}
return_os;
}
}
publicvirtualboolIsBot
{
get
{
if(!_isBot.HasValue)
{
_isBot=_httpContext.Request.Browser.Crawler||this.Device.IsBot;
}
return_isBot.Value;
}
}
publicvirtualboolIsMobileDevice
{
get
{
if(!_isMobileDevice.HasValue)
{
_isMobileDevice=
s_MobileOS.Contains(this.OS.Family)||
s_MobileBrowsers.Contains(this.UserAgent.Family)||
s_MobileDevices.Contains(this.Device.Family);
}
return_isMobileDevice.Value;
}
}
publicvirtualboolIsTablet
{
get
{
if(!_isTablet.HasValue)
{
_isTablet=
Regex.IsMatch(this.Device.Family,"iPad|KindleFire|Nexus10|Xoom|Transformer|MIPAD|IdeaTab",RegexOptions.CultureInvariant)||
this.OS.Family=="BlackBerryTabletOS";
}
return_isTablet.Value;
}
}
publicvirtualboolIsPdfConverter
{
get
{
if(!_isPdfConverter.HasValue)
{
_isPdfConverter=s_pdfConverterPattern.IsMatch(this.RawValue);
}
return_isPdfConverter.Value;
}
}
}
publicsealedclassDeviceInfo
{
publicDeviceInfo(stringfamily,boolisBot)
{
this.Family=family;
this.IsBot=isBot;
}
publicoverridestringToString()
{
returnthis.Family;
}
publicstringFamily{get;privateset;}
publicboolIsBot{get;privateset;}
}
publicsealedclassOSInfo
{
publicOSInfo(stringfamily,stringmajor,stringminor,stringpatch,stringpatchMinor)
{
this.Family=family;
this.Major=major;
this.Minor=minor;
this.Patch=patch;
this.PatchMinor=patchMinor;
}
publicoverridestringToString()
{
varstr=VersionString.Format(Major,Minor,Patch,PatchMinor);
return(this.Family+(!string.IsNullOrEmpty(str)?(""+str):null));
}
publicstringFamily{get;privateset;}
publicstringMajor{get;privateset;}
publicstringMinor{get;privateset;}
publicstringPatch{get;privateset;}
publicstringPatchMinor{get;privateset;}
privatestaticstringFormatVersionString(paramsstring[]parts)
{
returnstring.Join(".",(fromvinparts
where!string.IsNullOrEmpty(v)
selectv).ToArray<string>());
}
}
publicsealedclassUserAgentInfo
{
publicUserAgentInfo(stringfamily,stringmajor,stringminor,stringpatch)
{
this.Family=family;
this.Major=major;
this.Minor=minor;
this.Patch=patch;
}
publicoverridestringToString()
{
varstr=VersionString.Format(Major,Minor,Patch);
return(this.Family+(!string.IsNullOrEmpty(str)?(""+str):null));
}
publicstringFamily{get;privateset;}
publicstringMajor{get;privateset;}
publicstringMinor{get;privateset;}
publicstringPatch{get;privateset;}
}
internalstaticclassVersionString
{
publicstaticstringFormat(paramsstring[]parts)
{
returnstring.Join(".",(fromvinparts
where!string.IsNullOrEmpty(v)
selectv).ToArray<string>());
}
}
控制器中代码：
UAParserUserAgentuserAgent=newUAParserUserAgent(this.HttpContext);
dto.OSInfo=userAgent.OS.ToString();
dto.Device=userAgent.Device.ToString()!="Other"?userAgent.Device.ToString():"电脑";
dto.Agent=userAgent.UserAgent.ToString();
dto.RawValue=userAgent.RawValue.ToString();
//if(userAgent.IsMobileDevice)
//{
//Debug.WriteLine("这是一个手机");
//ViewBag.MobilePc="手机";
//}
//elseif(userAgent.IsTablet)
//{
//ViewBag.MobilePc="平板";
//Debug.WriteLine("这是一个平板");
//}
//else
//{
//ViewBag.MobilePc="普通电脑";
//Debug.WriteLine("这是一个普通电脑");
//}
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