asp.net获取URL和IP地址

HttpContext.Current.Request.Url.ToString() 并不可靠。

如果当前URL为 
http: // localhost/search.aspx?user= http://csharp.xdowns.com &tag=%BC%BC%CA%F5 

通过HttpContext.Current.Request.Url.ToString()获取到的却是 

http: // localhost/search.aspxuser= http://csharp.xdowns.com &tag=¼¼Êõ 


正确的方法是：HttpContext.Current.Request.Url.PathAndQuery

1 、通过ASP.NET获取
如果测试的url地址是http: // www.test.com/testweb/default.aspx, 结果如下：
Request.ApplicationPath:                 / testweb
Request.CurrentExecutionFilePath:        / testweb / default .aspx
Request.FilePath:                        / testweb / default .aspx
Request.Path:                            / testweb / default .aspx
Request.PhysicalApplicationPath:        E:\WWW\testwebRequest.PhysicalPath:                   E:\WWW\testweb\ default .aspx
Request.RawUrl:                          / testweb / default .aspx
Request.Url.AbsolutePath:                / testweb / default .aspx
Request.Url.AbsoluteUrl:                http: // www.test.com/testweb/default.aspx
Request.Url.Host:                       www.test.com
Request.Url.LocalPath:                   / testweb / default .aspx 

2 、通过JS获取

< table width = 100 %  cellpadding = 0  cellspacing = 0  border = 0   >

< script >  

thisURL  =  document.URL; 

thisHREF  =  document.location.href; 

thisSLoc  =  self.location.href; 

thisDLoc  =  document.location; 

strwrite  =   " <tr><td valign=top>thisURL: </td><td>[ "   +  thisURL  +   " ]</td></tr> "  

strwrite  +=   " <tr><td valign=top>thisHREF: </td><td>[ "   +  thisHREF  +   " ]</td></tr> "  

strwrite  +=   " <tr><td valign=top>thisSLoc: </td><td>[ "   +  thisSLoc  +   " ]</td></tr> "  

strwrite  +=   " <tr><td valign=top>thisDLoc: </td><td>[ "   +  thisDLoc  +   " ]</td></tr> "  

document.write( strwrite ); 

</ script >  

thisDLoc  =  document.location;  < BR >

thisURL  =  document.URL;  < BR >

thisHREF  =  document.location.href;  < BR >

thisSLoc  =  self.location.href; < BR >

< script >  

thisTLoc  =  top.location.href; 

thisPLoc  =  parent.document.location; 

thisTHost  =  top.location.hostname; 

thisHost  =  location.hostname; 

strwrite  =   " <tr><td valign=top>thisTLoc: </td><td>[ "   +  thisTLoc  +   " ]</td></tr> "  

strwrite  +=   " <tr><td valign=top>thisPLoc: </td><td>[ "   +  thisPLoc  +   " ]</td></tr> "  

strwrite  +=   " <tr><td valign=top>thisTHost: </td><td>[ "   +  thisTHost  +   " ]</td></tr> "  

strwrite  +=   " <tr><td valign=top>thisHost: </td><td>[ "   +  thisHost  +   " ]</td></tr> "  

document.write( strwrite ); 

</ script >  

thisTLoc  =  top.location.href;  < BR >

thisPLoc  =  parent.document.location;  < BR >

thisTHost  =  top.location.hostname;  < BR >

thisHost  =  location.hostname; < BR >

< script >  

tmpHPage  =  thisHREF.split(  " / "  ); 

thisHPage  =  tmpHPage[ tmpHPage.length - 1  ]; 

tmpUPage  =  thisURL.split(  " / "  ); 

thisUPage  =  tmpUPage[ tmpUPage.length - 1  ]; 

strwrite  =   " <tr><td valign=top>thisHPage: </td><td>[ "   +  thisHPage  +   " ]</td></tr> "  

strwrite  +=   " <tr><td valign=top>thisUPage: </td><td>[ "   +  thisUPage  +   " ]</td></tr> "  

document.write( strwrite ); 

</ script >< tr >< td >

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获取IP
1 、ASP.NET中获取

获取服务器的IP地址： 
using  System.Net; 

string  myIP,myMac;
System.Net.IPAddress[] addressList  =  Dns.GetHostByName(Dns.GetHostName()).AddressList; 
if  ( addressList.Length > 1 ) 
{
 myIP = addressList[0].ToString(); 
 myMac = addressList[1].ToString(); 
}  
else  
{ 
 myIP = addressList[0].ToString(); 
 myMac = "没有可用的连接"；
}  
myIP地址就是服务器端的ip地址。

获取客户端的ip地址，可以使用

// 获取登录者ip地址
string  ip  =  Request.ServerVariables[ " REMOTE_ADDR " ].ToString(); 
2 、通过JS获取
< html >
< head >
< title ></ title >
< meta http - equiv = " Content-Type "  content = " text/html; charset=gbk " >
</ head >

< body >

< object  classid = " CLSID:76A64158-CB41-11D1-8B02-00600806D9B6 "  id = " locator "  style = " display:none;visibility:hidden " ></ object >
< object  classid = " CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223 "  id = " foo "  style = " display:none;visibility:hidden " ></ object >                                                          

< form name = " myForm " >
  < br /> MAC地址： < input type = " text "  name = " macAddress " >
  < br /> IP地址： < input type = " text "  name = " ipAddress " >
  < br /> 主机名： < input type = " text "  name = " hostName " >
</ form >

</ body >
</ html >
< script language = " javascript " >
 var sMacAddr = "" ;
 var sIPAddr = "" ;
 var sDNSName = "" ;

 var service  =  locator.ConnectServer();
 service.Security_.ImpersonationLevel = 3 ;
 service.InstancesOfAsync(foo,  ' Win32_NetworkAdapterConfiguration ' );

</ script >

< script FOR = " foo "  EVENT = " OnObjectReady(objObject,objAsyncContext) "  LANGUAGE = " JScript " >
         if (objObject.IPEnabled  !=   null   &&  objObject.IPEnabled  !=   " undefined "   &&  objObject.IPEnabled  ==   true ) {
                          if(objObject.IPEnabled && objObject.IPAddress(0) !=null && objObject.IPAddress(0) != "undefined")
                                        sIPAddr = objObject.IPAddress(0);
                          if(objObject.MACAddress != null &&objObject.MACAddress != "undefined")
                    sMacAddr = objObject.MACAddress;
                          if(objObject.DNSHostName != null &&objObject.DNSHostName != "undefined")
                                        sDNSName = objObject.DNSHostName;
         }
</ script >

< script FOR = " foo "  EVENT = " OnCompleted(hResult,pErrorObject, pAsyncContext) "  LANGUAGE = " JScript " >

       myForm.macAddress.value = sMacAddr;
 myForm.ipAddress.value = sIPAddr;
       myForm.hostName.value = sDNSName;
</ script >