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本文实例讲述了asp.net实现中英文多域名检测的方法。分享给大家供大家参考,具体如下:
第一步:在前台页面中写入js代码和相关控件
/****写入js代码****/<%-- 域名检测 --%><script type="text/javascript">//判断输入的是否为中文域名function IsChDomain(domainStr){var flag = false;var compStr = "ABCDEFGHIGKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_0123456789";var domainLength = domainStr.length;//判断字符长度for(var i = 0;i < domainLength;i++){ var temp = domainStr.charCodeAt(i); if(temp >= 10000)//含有字符编码大于10000的字符判断为中文,不太严格 { flag=true; } else { var temp2 = compStr.indexOf(domainStr.charAt(i)); if(temp2 == -1) {flag = false;break; } }}return flag; }//判断输入的是否为英文域名  function IsEnDomain(domainStr)  {var flag = false;var compStr = "ABCDEFGHIGKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_0123456789";var domainLength = domainStr.length;for(var i = 0;i<domainLength;i++){ if(compStr.indexOf(domainStr.charAt(i)) == -1) { flag = false; break; } else { flag = true; }}return flag;} //中国等不能注册英文域名,把相应的CheckBox的disabled属性设置为true, function Trim(domainStr) {return domainStr.replace(/(^s*)|(s*$)/g, ""); }//验证域名是哪一类型的  function checkDomainType(){var domainName = document.getElementById("txtDomainName").value;domainName = Trim(domainName);//去掉输入的特殊符号if(IsChDomain(domainName))//调用中文域名----------验证方法{ setCheckBox(true);}else if(IsEnDomain(domainName))//调用英文域名-----验证方法{ setCheckBox(false);}}//为CheckBox复选框的Checked属性赋值  function setCheckBox(flag){ document.getElementById("chkcom").disabled = flag; document.getElementById("chknet").disabled = flag; document.getElementById("chkorg").disabled = flag; document.getElementById("chkorgcn").disabled = flag; document.getElementById("chkcn").disabled = flag; document.getElementById("chkcomcn").disabled = flag; document.getElementById("chknetcn").disabled = flag; document.getElementById("chkgovcn").disabled = flag; document.getElementById("chkcouk").disabled = flag; document.getElementById("chkbiz").disabled = flag; document.getElementById("chkcc").disabled = flag; document.getElementById("chktv").disabled = flag; document.getElementById("chkinfo").disabled = flag; document.getElementById("chkchina").disabled = !flag; document.getElementById("chkcompany").disabled = !flag; document.getElementById("chknetwork").disabled = !flag; document.getElementById("chkorguk").disabled = flag; document.getElementById("chkus").disabled = flag; document.getElementById("chkmeuk").disabled = flag; document.getElementById("chkltduk").disabled = flag;}//检查输入的字符规范//function checkValue()//{// if(document.getElementById("txtDomainName").value=="")//{//alert("请输入域名!");//return false;//}//if(document.getElementById("txtDomainName").value.length >= 60)//{//alert("域名长度不能超过60个字符!");//return false;//}//for(var i = 0;i < document.getElementById("txtDomainName").value.length;i++)//{//if(document.getElementById("txtDomainName").value.charAt(i) == " ")//{//alert("域名中不能含有空格!");//return false;//break;//}//}//}</script>/***写入相关控件***///用于显示查询的结果<asp:Panel ID="indexpnlDomainName" runat="server" Width="100%" />//<table width="373" border="0" cellpadding="0" cellspacing="1"> <tr><td width="74" height="41"><asp:CheckBox ID="chkcom" Text=".com" runat="server" /></td><td width="71" height="41"><asp:CheckBox ID="chkcn" Text=".cn" runat="server" /></td><td width="79" height="41"><asp:CheckBox ID="chkorg" Text=".org" runat="server" /></td><td width="71" height="41"><asp:CheckBox ID="chknet" Text=".net" runat="server" /></td><td width="72" height="41"><asp:CheckBox ID="chkinfo" Text=".info" runat="server" /></td> </tr> <tr><td width="74" height="41"><asp:CheckBox ID="chkcomcn" Text=".com.cn" runat="server" /></td><td height="41"><asp:CheckBox ID="chkcc" Text=".cc" runat="server" /></td><td height="41"><asp:CheckBox ID="chkorgcn" Text=".org.cn" runat="server" /></td><td height="41"><asp:CheckBox ID="chknetcn" Text=".net.cn" runat="server" /></td><td height="41"><asp:CheckBox ID="chkin" Text=".in" runat="server" /> </td></tr><tr><td width="74" height="40"> <asp:CheckBox ID="chkcouk" Text=".co.uk" runat="server" /></td><td height="41"> <asp:CheckBox ID="chktv" Text=".tv" runat="server" /></td><td height="41"> <asp:CheckBox ID="chkorguk" Text=".org.uk" runat="server" /></td><td height="41"> <asp:CheckBox ID="chkus" Text=".us" runat="server" /></td><td height="41"> <asp:CheckBox ID="chkmeuk" Text=".me.uk" runat="server" /></td> </tr> <tr><td width="74" height="41"> <asp:CheckBox ID="chkltduk" Text=".ltd.uk" runat="server" /></td><td height="41"> <asp:CheckBox ID="chkbiz" Text=".biz" runat="server" /></td><td height="41"> <asp:CheckBox ID="chknetwork" Text=".网络" runat="server" /></td><td height="41"> <asp:CheckBox ID="chkcompany" Text=".公司" runat="server" /></td><td height="41"> <asp:CheckBox ID="chkchina" Text=".中国" runat="server" /></td> </tr></table>
第二步:在后台页面中写入方法
using System;using System.Collections;using System.Configuration;using System.Data;using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Xml.Linq;using System.Text; //(需要引入的类文件命名空间)using System.Net.Sockets; //(需要引入的类文件命名空间)using System.Text.RegularExpressions; //(需要引入的类文件命名空间)using System.Collections.Generic; //(需要引入的类文件命名空间)using System.Data.Common; //(需要引入的类文件命名空间)using System.Xml; //(需要引入的类文件命名空间)using System.IO; //(需要引入的类文件命名空间)using Microsoft.SqlServer.Server; //(需要引入的类文件命名空间)using System.Net; //(需要引入的类文件命名空间)//判断是否为中文域名(方法)public static bool IsHasCHZN(string domainName){Regex RegCHZN = new Regex("[一-龥]");Match m = RegCHZN.Match(domainName);return m.Success;}//判断域名是否被注册(方法)public static bool IsReg(string domainName){bool flag = false;string dm = HttpContext.Current.Server.UrlEncode(domainName);try{ //判断方法非常多,如打开远程文件再处理字符串等等,这里用的方法效率不是很高 WebClient wc = new WebClient();string xmlstr = wc.DownloadString("http://panda.www.net.cn/cgi-bin/check.cgi?area_domain=" + dm);StringReader sr = new StringReader(xmlstr);XmlTextReader xr = new XmlTextReader(sr);while (xr.Read()){ if (xr.IsStartElement("original")) {xr.Read();if (xr.Value.Substring(0, 3) == "210"){ flag = true; break;}else{ flag = false; break;} }}return flag; } catch {return false; }}//按钮事件中protected void imgBtnCheck_Click(object sender, ImageClickEventArgs e){string txtYM = this.txtYMname.Text.Trim();if (txtYM == ""){ ScriptManager.RegisterStartupScript(this, this.GetType(), "sc", "alert("对不起,域名不能为空!");", true); }else{ string domainName = this.txtYMname.Text.Trim(); IList<string> domainList = new List<string>();//保存域名名称和后缀domainList.Add(domainName);//List<string>第一元素保存域名名称,其他元素为域名后缀 //判断是否为中文域名 if (IsHasCHZN(domainName)) {if (chkchina.Checked) domainList.Add(chkchina.Text);if (chkcompany.Checked) domainList.Add(chkcompany.Text);if (chknetwork.Checked) domainList.Add(chknetwork.Text); } else {if (chkcom.Checked) domainList.Add(chkcom.Text);if (chknet.Checked) domainList.Add(chknet.Text);if (chkorg.Checked) domainList.Add(chkorg.Text);if (chkorgcn.Checked) domainList.Add(chkorgcn.Text);if (chkcn.Checked) domainList.Add(chkcn.Text);if (chkcomcn.Checked) domainList.Add(chkcomcn.Text);if (chknetcn.Checked) domainList.Add(chknetcn.Text);if (chkinfo.Checked) domainList.Add(chkinfo.Text);if (chkcouk.Checked) domainList.Add(chkcouk.Text);if (chkbiz.Checked) domainList.Add(chkbiz.Text);if (chkcc.Checked) domainList.Add(chkcc.Text);if (chktv.Checked) domainList.Add(chktv.Text);if (chkorguk.Checked) domainList.Add(chkorguk.Text);if (chkus.Checked) domainList.Add(chkus.Text);if (chkmeuk.Checked) domainList.Add(chkmeuk.Text);if (chkltduk.Checked) domainList.Add(chkltduk.Text);if (chkin.Checked) domainList.Add(chkin.Text); } Session["localpnlDomainName"] = domainList;//将首页查询的域名结果显示出来 if (Session["localpnlDomainName"] != null) {IList<string> il = (IList<string>)Session["localpnlDomainName"];if (il.Count > 1){ string dm = il[0]; string dname; Label lbl;for (int i = 1; i < il.Count; i++) { dname = dm + il[i]; if (IsReg(dname)) {lbl = new Label();lbl.ID = "lbl" + i.ToString();lbl.Text = string.Format("<p style="font-size:12px;color:green">{0}    可以注册!</p>", dm + il[i]);indexpnlDomainName.Controls.Add(lbl);} else { lbl = new Label(); lbl.ID = "lbl" + i.ToString(); lbl.Text = string.Format("<p><a target="_blank" style="color:red;font-size:12px" title="点击跳转到该域名" href="http://www.{0}">{1}    已被注册!</a>    <a target="_blank" style="font-size:12px;color:red" title="点击查看详细信息" href="http://whois.hichina.com/cgi-bin/whois?domain={2}">[查看]</a></p>", dm + il[i], dm + il[i], Server.UrlEncode(dm + il[i])); indexpnlDomainName.Controls.Add(lbl);} }} }}}
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