http://whois.hichina.com/whois/api_whois?host=www.hao123.cn&oper=0这个网址会得到一个json数据
如下所示
{"exp_date":" 2015-03-17 12:48:36",
"name_server":"f1g1ns1.dnspod.net,f1g1ns2.dnspod.net","status":" ok","name":"hao123.cn","email":" suyouzhong@gmail.com","registrar":"厦门市中资源网络服务有限公司","reg_date":" 2003-03-17 12:20:05","total_infor":"Domain Name: hao123.cn\nROID: 20030311s10001s00039363-cn\nDomain Status: ok\nRegistrant ID: cnnic-zdmd-015\nRegistrant: 厦门中越网络科技有限公司\nRegistrant Contact Email: suyouzhong@gmail.com\nSponsoring Registrar: 厦门市中资源网络服务有限公司\nName Server: f1g1ns1.dnspod.net\nName Server: f1g1ns2.dnspod.net\nRegistration Date: 2003-03-17 12:20:05\nExpiration Date: 2015-03-17 12:48:36\nDNSSEC: unsigned\n","Registrant_Organization":" 厦门中越网络科技有限公司"}我要把这个json数据显示到一个DataGridView，只显示域名、注册商、注册时间、到期时间，如下图所示
源码如下
public partial class frm_WhoIs : Form
{ public frm_WhoIs() { InitializeComponent(); } private static frm_WhoIs a = null;public static frm_WhoIs getForm()
{ if (a == null || a.IsDisposed == true) { a = new frm_WhoIs(); } return a;}
/// <summary> /// 点击查询 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void Button1_Click(object sender, EventArgs e) { string par = IsVal(); if (par == null) { MessageBox.Show("请输入要查询的域名"); return; } if (par.Length == 0 || par == "") { MessageBox.Show("请输入要查询的域名"); return; } string url = "http://whois.hichina.com/whois/api_whois?host=" + par + "&oper=0";//所要获得内容的页面 var Url = url; WebClient Client = new WebClient(); Client.Credentials = CredentialCache.DefaultCredentials; byte[] PageData = Client.DownloadData(@Url); string PageHtml = Encoding.Default.GetString(PageData); DataTable dt = new DataTable(); if (!dt.Columns.Contains("name")) { dt.Columns.Add("name", typeof(string)); } if (!dt.Columns.Contains("registrar")) { dt.Columns.Add("registrar", typeof(string)); } if (!dt.Columns.Contains("creation")) { dt.Columns.Add("creation", typeof(DateTime)); } if (!dt.Columns.Contains("expiration")) { dt.Columns.Add("expiration", typeof(DateTime)); } DataRow dr = dt.NewRow(); WhoIsData whois = SerizaleTrackdalkDataTi(PageHtml); try { string name = whois.name.ToString(); string reg = whois.registrar.ToString(); string create = whois.reg_date.ToString(); string exp = whois.exp_date.ToString(); dr[0] = name; dr[1] = reg; dr[2] = create; dr[3] = exp; } catch (Exception) { dr[0] = txt_Whois.Text; dr[1] = "无信息"; } dt.Rows.Add(dr); dgvlist.DataSource = dt; dgvlist.AutoGenerateColumns = false; }/// <summary>
/// 验证输入的url /// </summary> /// <returns></returns> private string IsVal() { string str = txt_Whois.Text.Trim(); if (str.IndexOf("www") == 0 && str.Length > 2) { str = str.Remove(str.IndexOf("www"), 3).Trim(); } if (str.IndexOf("https") == 0 && str.Length > 4) { str = str.Remove(str.IndexOf("https"), 5).Trim(); } if (str.IndexOf("http") == 0 && str.Length > 3) { str = str.Remove(str.IndexOf("http"), 4).Trim(); } if (str.IndexOf("//") >= 0 && str.Length > 1) { str = str.Remove(str.IndexOf("//"), 2).Trim(); } if (str.IndexOf(".") == 0 && str.Length > 0) { str = str.Remove((str.IndexOf(".")), 1).Trim(); } if ((str.IndexOf("/") == 0 || str.IndexOf("/") == str.Length) && str.Length > 0) { str = str.Remove(str.IndexOf("/"), 1).Trim(); } if(str.IndexOf("/")>0) { str = str.Remove(str.IndexOf("/"), str.Length - str.IndexOf("/")); } if (str.IndexOf(".") < 0) { return null; } if (str.IndexOf(":") >= 0) { str = str.Remove(str.IndexOf(":"), 1); } return str; } #region json对象的相关操作，这个类里面的属性必须和json中的一样，有大小写之分。 [DataContract] public class WhoIsData { [DataMember(Order = 1)] public string name { get; set; }//域名 [DataMember(Order = 2)] public string registrar { get; set; }//注册商 [DataMember(Order = 3)] public string reg_date { get; set; }//注册时间 [DataMember(Order = 4)] public string exp_date { get; set; }//过期时间public WhoIsData(string name, string regist, string reg, string exp)
{ this.name = name; this.registrar = regist; this.reg_date = reg; this.exp_date = exp; } public WhoIsData() { } }public static WhoIsData SerizaleTrackdalkDataTi(string jsonString)
{ DataContractJsonSerializer ser = new DataContractJsonSerializer(typeof(WhoIsData)); MemoryStream ms = new MemoryStream(Encoding.UTF8.GetBytes(jsonString)); WhoIsData jsonObject = (WhoIsData)ser.ReadObject(ms);//将js序列化为对象 //ser.WriteObject(ms, jsonObject);这个是将对象序列化为json ms.Close(); return jsonObject; } #endregion }