ASP.NET的实时天气及24小时天气预报

发布时间：2013-09-19 11:33:46来源：阅读（1623）

.Ynz443 { display:none; }
修改其中的url获得其他城市的天气情况
如广州为： http://weather.yahoo.com/forecast/CHXX0037_c.html  

注意仅适用于获得yahoo上的天气预报
   
  
以下为引用的内容：
  GetWeather.aspx
  -----------------------------------
  
  <%@ Page language="c#" Codebehind="GetWeather.aspx.cs" AutoEventWireup="false" Inherits="test.GetWeather" %>
 
 
  
  
  
Chinaz^com
  
  
   http://schemas.microsoft.com/intellisense/ie5">
  
  
  

  
  

   Weather

  

  

  

   24小时天气
Www~Chinaz~com
  

  

  
  

  
 
  
  
  
  
  
  getWeather.aspx.cs
  ---------------------------------------
  
  using System;
  using System.Collections;
  using System.ComponentModel;
  using System.Data;
  using System.Drawing;
  using System.Web;
  using System.Web.SessionState;
  using System.Web.UI;
  using System.Web.UI.WebControls;
  using System.Web.UI.HtmlControls;
  using System.Net;
  using System.IO;
  
  namespace test
  {
  
   public class GetWeather : System.Web.UI.Page [中国站长站]
   {
   protected System.Web.UI.WebControls.Label lblWeather;
   protected System.Web.UI.WebControls.Label Weather2;
   protected System.Web.UI.WebControls.Button btnGet2;
   protected System.Web.UI.WebControls.Button btnGet;
  
   private void Page_Load(object sender, System.EventArgs e)
   {
   // Put user code to initialize the page here
   }
  
   #region Web Form Designer generated code
   override protected void OnInit(EventArgs e)
   {
   //
   // CODEGEN: This call is required by the ASP.NET Web Form Designer.
   //
   InitializeComponent();
   base.OnInit(e);
   }
  
   ///

   /// Required method for Designer support - do not modify 站长.站
   /// the contents of this method with the code editor.
   ///

   private void InitializeComponent()
   {
   this.btnGet.Click += new System.EventHandler(this.btnGet_Click);
   this.btnGet2.Click += new System.EventHandler(this.btnGet2_Click);
   this.Load += new System.EventHandler(this.Page_Load);
  
   }
   #endregion
  
   private void btnGet_Click(object sender, System.EventArgs e)
   {
  
   WebRequest wreq=WebRequest.Create("http://weather.yahoo.com/forecast/CHXX0037_c.html");
  
   HttpWebResponse wresp=(HttpWebResponse)wreq.GetResponse();
  
   string HTML ="";
   Stream s=wresp.GetResponseStream(); Chinaz_com
  
   StreamReader objReader = new StreamReader(s);
  
   string sLine = "";
   int i = 0;
  
   while (sLine!=null)
   {
   i++;
   sLine = objReader.ReadLine();
   if (sLine!=null)
   HTML += sLine;
   }
  
   String temp= "";
   int start,stop;
  
   start = HTML.IndexOf("",0,HTML.Length);
  
   stop = HTML.IndexOf("",0,HTML.Length);
  
   temp = HTML.Substring(start, stop - start);
   start = temp.IndexOf("");
   stop = temp.IndexOf("");
  
   string degree = temp.Substring(start+3,stop - start -3); Chinaz~com
  
   start = temp.IndexOf("   stop = temp.IndexOf("",start);
  
   string img = temp.Substring(start,stop - start);
   lblWeather.Text = degree + "
" + img;
  
   }
  
   private void btnGet2_Click(object sender, System.EventArgs e)
   {
   WebRequest wreq=WebRequest.Create("http://cn.weather.yahoo.com/CHXX/CHXX0037/index_c.html");
  
   HttpWebResponse wresp=(HttpWebResponse)wreq.GetResponse();
  
   string HTML ="";
   Stream s=wresp.GetResponseStream();
  
   StreamReader objReader = new StreamReader(s,System.Text.Encoding.GetEncoding("GB2312"));
  
Www_Chinaz_com
  
   string sLine = "";
   int i = 0;
  
   while (sLine!=null)
   {
   i++;
   sLine = objReader.ReadLine();
   if (sLine!=null)
   HTML += sLine;
   }
  
   String temp= "";
   int start,stop;
  
   start = HTML.IndexOf("",0,HTML.Length);
  
   stop = HTML.IndexOf("",start)+8;
  
  
   temp = HTML.Substring(start, stop - start);
   Weather2.Text = temp;
   }
   }
  } Chinaz.com