csharp:qq weather

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using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Net; using System.Net.Security; using System.Security.Authentication; using System.Security.Cryptography.X509Certificates; using System.Text; using System.IO; using System.Text.RegularExpressions; using System.Net.Cache;   namespace sitemapdemo {     /// <summary>     /// 2011-06-16 塗聚文     /// </summary>     public partial class QQweather : System.Web.UI.Page     {           public string selectcity = "1";         string strUrl = "http://weather.qq.com/inc/ss1.htm";         string old = @"<select id=""obSelect"" onchange=""getredirect(this.value)"">";         string old1 = @"<option value=""1"">香港</option><option value=""2"">澳门</option><option value=""17"">哈尔滨</option><option value=""28"">乌鲁木齐</option><option value=""56"">西宁</option><option value=""57"">兰州</option><option value=""69"">呼和浩特</option><option value=""78"">银川</option><option value=""82"">石家庄</option><option value=""84"">太原</option><option value=""103"">长春</option><option value=""115"">沈阳</option><option selected value=""125"">北京</option><option value=""127"">天津</option><option value=""140"">济南</option><option value=""150"">拉萨</option><option value=""166"">成都</option><option value=""179"">昆明</option><option value=""186"">西安</option><option value=""189"">郑州</option><option value=""211"">武汉</option><option value=""212"">重庆</option><option value=""218"">长沙</option><option value=""227"">贵阳</option><option value=""232"">桂林</option><option value=""244"">南京</option><option value=""248"">合肥</option><option value=""252"">上海</option><option value=""255"">杭州</option><option value=""264"">南昌</option><option value=""276"">福州</option><option value=""280"">台北</option><option value=""287"">厦门</option><option value=""292"">广州</option><option value=""295"">南宁</option><option value=""296"">深圳</option><option value=""303"">海口</option>";         string old2 = @"</select>";         string old3 = @"市";         string old4 = @"<img src=""/images/r_b.gif"" width=""96"" height=""21"">";         string strWeather = string.Empty;         /// <summary>         ///         /// </summary>         /// <param name="sender"></param>         /// <param name="e"></param>         protected void Page_Load(object sender, EventArgs e)         {             //ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult);             //HttpWebRequest req = (HttpWebRequest)WebRequest.CreateDefault(new Uri("http://intranet.lukfook.com.hk/luk_intranet/QQweather.aspx"));//https://intranet.lukfook.com.hk/luk_intranet/QQweather.aspx             //req.Method = "GET";             //HttpWebResponse res = (HttpWebResponse)req.GetResponse();             //selectcity = DropDownList1.SelectedValue.ToString();             if (!IsPostBack)             {                   this.DropDownList1.DataSource = CreateDataSource();                 DropDownList1.DataTextField = "WeatherTextField";                 DropDownList1.DataValueField = "WeatherValueField";                   // Bind the data to the control.                 DropDownList1.DataBind();                   // Set the default selected item, if desired.                 DropDownList1.SelectedIndex = 0;                 selectcity = @"1";                               strUrl = "http://weather.qq.com/inc/ss1.htm";                   strWeather = getHttpData(strUrl);                 strWeather = strWeather.Replace(old, "");                 strWeather = strWeather.Replace(old1, "");                 strWeather = strWeather.Replace(old2, "");                 strWeather = strWeather.Replace(old3, "");                 strWeather = strWeather.Replace(old4, "");                 geovindu.InnerHtml = strWeather; //getHttpData(strUrl);                 //Response.Write(s);               }               /*              * <select id="obSelect" onchange="getredirect(this.value)">   <option value="1">香港</option><option value="2">澳门</option><option value="17">哈尔滨</option><option value="28">乌鲁木齐</option><option value="56">西宁</option><option value="57">兰州</option><option value="69">呼和浩特</option><option value="78">银川</option><option value="82">石家庄</option><option value="84">太原</option><option value="103">长春</option><option value="115">沈阳</option><option selected value="125">北京</option><option value="127">天津</option><option value="140">济南</option><option value="150">拉萨</option><option value="166">成都</option><option value="179">昆明</option><option value="186">西安</option><option value="189">郑州</option><option value="211">武汉</option><option value="212">重庆</option><option value="218">长沙</option><option value="227">贵阳</option><option value="232">桂林</option><option value="244">南京</option><option value="248">合肥</option><option value="252">上海</option><option value="255">杭州</option><option value="264">南昌</option><option value="276">福州</option><option value="280">台北</option><option value="287">厦门</option><option value="292">广州</option><option value="295">南宁</option><option value="296">深圳</option><option value="303">海口</option>                  */         }         /// <summary>         ///         /// </summary>         /// <param name="sender"></param>         /// <param name="e"></param>         protected void Button1_Click(object sender, EventArgs e)         {             //ServicePointManager.ServerCertificateValidationCallback = new System.Net.Security.RemoteCertificateValidationCallback(CheckValidationResult);             //HttpWebRequest req = (HttpWebRequest)WebRequest.CreateDefault(new Uri("http://intranet.lukfook.com.hk/luk_intranet/QQweather.aspx"));             //req.Method = "GET";             //HttpWebResponse res = (HttpWebResponse)req.GetResponse();             selectcity = DropDownList1.SelectedValue.ToString();             strUrl = "http://weather.qq.com/inc/ss"+selectcity+".htm";             strWeather = getHttpData(strUrl);             strWeather = strWeather.Replace(old, "");             strWeather = strWeather.Replace(old1, "");             strWeather = strWeather.Replace(old2, "");             strWeather = strWeather.Replace(old3, "");             strWeather = strWeather.Replace(old4, "");             geovindu.InnerHtml = strWeather; //getHttpData(strUrl);                  }         /// <summary>         /// <%# selectcity%>         /// </summary>         /// <returns></returns>         ICollection CreateDataSource()         {                          DataTable dt = new DataTable();                        dt.Columns.Add(new DataColumn("WeatherTextField", typeof(String)));             dt.Columns.Add(new DataColumn("WeatherValueField", typeof(String)));             dt.Rows.Add(CreateRow("香港", "1", dt));             dt.Rows.Add(CreateRow("澳門", "2", dt));             dt.Rows.Add(CreateRow("哈爾濱", "17", dt));             dt.Rows.Add(CreateRow("烏魯木齊", "28", dt));             dt.Rows.Add(CreateRow("西寧", "56", dt));             dt.Rows.Add(CreateRow("蘭州", "57", dt));             dt.Rows.Add(CreateRow("呼和浩特", "69", dt));             dt.Rows.Add(CreateRow("銀川", "78", dt));             dt.Rows.Add(CreateRow("石家莊", "82", dt));             dt.Rows.Add(CreateRow("太原", "84", dt));             dt.Rows.Add(CreateRow("長春 ", "103", dt));             dt.Rows.Add(CreateRow("瀋陽 ", "115", dt));             dt.Rows.Add(CreateRow("北京 ", "125", dt));             dt.Rows.Add(CreateRow("天津 ", "127", dt));             dt.Rows.Add(CreateRow("濟南 ", "140", dt));             dt.Rows.Add(CreateRow("拉薩 ", "150", dt));             dt.Rows.Add(CreateRow("成都 ", "166", dt));             dt.Rows.Add(CreateRow("昆明 ", "179", dt));             dt.Rows.Add(CreateRow("西安 ", "186", dt));             dt.Rows.Add(CreateRow("鄭州 ", "189", dt));             dt.Rows.Add(CreateRow("武漢 ", "211", dt));             dt.Rows.Add(CreateRow("重慶 ", "212", dt));             dt.Rows.Add(CreateRow("長沙 ", "218", dt));             dt.Rows.Add(CreateRow("貴陽 ", "227", dt));             dt.Rows.Add(CreateRow("桂林 ", "232", dt));             dt.Rows.Add(CreateRow("南京 ", "244", dt));             dt.Rows.Add(CreateRow("合肥 ", "248", dt));             dt.Rows.Add(CreateRow("上海 ", "252", dt));             dt.Rows.Add(CreateRow("杭州 ", "255", dt));             dt.Rows.Add(CreateRow("南昌 ", "264", dt));             dt.Rows.Add(CreateRow("福州 ", "276", dt));             dt.Rows.Add(CreateRow("臺北 ", "280", dt));             dt.Rows.Add(CreateRow("廈門 ", "287", dt));             dt.Rows.Add(CreateRow("廣州 ", "292", dt));             dt.Rows.Add(CreateRow("南寧 ", "295", dt));             dt.Rows.Add(CreateRow("深圳 ", "296", dt));             dt.Rows.Add(CreateRow("海口 ", "303", dt));             DataView dv = new DataView(dt);             return dv;           }         /// <summary>         ///         /// </summary>         /// <param name="Text"></param>         /// <param name="Value"></param>         /// <param name="dt"></param>         /// <returns></returns>         DataRow CreateRow(String Text, String Value, DataTable dt)         {             DataRow dr = dt.NewRow();             dr[0] = Text;             dr[1] = Value;             return dr;           }         public bool CheckValidationResult(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)         {             //直接确认，否则打不开             return true;         }         /// <summary>         ///         /// </summary>         /// <param name="url"></param>         /// <returns></returns>         public string getHttpData(string url)         {             try             {                 //1                 WebClient myWebClient = new WebClient();                 //WebClient.CachePolicy = new System.Net.Cache.RequestCachePolicy(System.Net.Cache.RequestCacheLevel.NoCacheNoStore);                 Stream myStream = myWebClient.OpenRead(url);                 WebHeaderCollection myHeader = myWebClient.ResponseHeaders;                 string myCharset = myHeader.Get("Content-Type");                 Match myMatch = Regex.Match(myCharset, "(?<=(charset=)).*$");                 StreamReader myReader = new StreamReader(myStream, Encoding.GetEncoding(myMatch.ToString()));                 return myReader.ReadToEnd();                   }             catch (System.Net.Sockets.SocketException ex)             {                return  ex.Message.ToString();             }           }         /// <summary>         ///         /// </summary>         class MyClient : WebClient         {             private bool tf = false;             public bool HeadOnly             {                 get { return tf; }                 set { value = tf; }             }             protected override WebRequest GetWebRequest(Uri address)             {                 WebRequest req = base.GetWebRequest(address);                 if (HeadOnly && req.Method == "GET")                 {                     req.Method = "HEAD";                 }                 return req;             }         }          } }