asp.net 获取客户端浏览器访问的IP地址的实例代码

2024-01-26 06:30:03 66

#regionIP地址限制功能2017-07-18 ///

/// ///

/// publicboolIsIPValidate() { boolflag=false; stringuserip=GetLoginIp(); string[]addr=GetAddressByIp(userip); stringaddrs=addr[0]+addr[1]; if("北京".Equals(addr[0])||"北京".Equals(addr[1])) { flag=true; } returnflag; } ///

///获取远程访问用户的Ip地址 ///

///返回Ip地址 protectedstringGetLoginIp() { stringloginip=""; //Request.ServerVariables[""]--获取服务变量集合 if(Request.ServerVariables["REMOTE_ADDR"]!=null)//判断发出请求的远程主机的ip地址是否为空 { //获取发出请求的远程主机的Ip地址 loginip=Request.ServerVariables["REMOTE_ADDR"].ToString(); } //判断登记用户是否使用设置代理 elseif(Request.ServerVariables["HTTP_VIA"]!=null) { if(Request.ServerVariables["HTTP_X_FORWARDED_FOR"]!=null) { //获取代理的服务器Ip地址 loginip=Request.ServerVariables["HTTP_X_FORWARDED_FOR"].ToString(); } else { //获取客户端IP loginip=Request.UserHostAddress; } } else { //获取客户端IP loginip=Request.UserHostAddress; } returnloginip; } ///

///根据IP获取省市 ///

publicstring[]GetAddressByIp(stringip) { stringPostUrl="http://int.dpool.sina.com.cn/iplookup/iplookup.php?ip="+ip; stringres=GetDataByPost(PostUrl);//该条请求返回的数据为：res=1t115.193.210.0t115.194.201.255t中国t浙江t杭州t电信 string[]arr=getAreaInfoList(res); returnarr; } ///

///Post请求数据 ///

/// /// publicstringGetDataByPost(stringurl) { HttpWebRequestreq=(HttpWebRequest)WebRequest.Create(url); strings="anything"; byte[]requestBytes=System.Text.Encoding.ASCII.GetBytes(s); req.Method="POST"; req.ContentType="application/x-www-form-urlencoded"; req.ContentLength=requestBytes.Length; StreamrequestStream=req.GetRequestStream(); requestStream.Write(requestBytes,0,requestBytes.Length); requestStream.Close(); HttpWebResponseres=(HttpWebResponse)req.GetResponse(); StreamReadersr=newStreamReader(res.GetResponseStream(),System.Text.Encoding.Default); stringbackstr=sr.ReadToEnd(); sr.Close(); res.Close(); returnbackstr; } ///

///处理所要的数据 ///

/// /// publicstaticstring[]getAreaInfoList(stringipData) { //1t115.193.210.0t115.194.201.255t中国t浙江t杭州t电信 string[]areaArr=newstring[10]; string[]newAreaArr=newstring[2]; try { //取所要的数据，这里只取省市 areaArr=ipData.Split('t'); newAreaArr[0]=areaArr[4];//省 newAreaArr[1]=areaArr[5];//市 } catch(Exceptione) { } returnnewAreaArr; } #endregion

asp.net 获取客户端浏览器访问的IP地址的实例代码

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