时间:2016-02-24 17:41 来源: 我爱IT技术网 作者:佚名
欢迎您访问我爱IT技术网，今天小编为你分享的编程技术是：【ASP.NET的实时天气及24小时天气预报】，下面是详细的分享！
ASP.NET的实时天气及24小时天气预报
GetWeather.aspx
-----------------------------------
<%@ Page language="c#" Codebehind="GetWeather.aspx.cs" AutoEventWireup="false" Inherits="test.GetWeather" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>GetWeather</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio 7.0">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
</HEAD>
<body>
<form id="GetWeather" method="post" runat="server">
<FONT face="宋体">
<P>
<asp:Label id="lblWeather" runat="server">Weather</asp:Label></P>
<P>
<asp:Button id="btnGet" runat="server" Text="Get Weather"></asp:Button></P>
<P>
<asp:Label id="Weather2" runat="server">24小时天气</asp:Label></P>
<P>
<asp:Button id="btnGet2" runat="server" Text="天气预报"></asp:Button></P>
</FONT>
</form>
</body>
</HTML>
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
{
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);
}
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
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();
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("<!-- CURCON-->",0,HTML.Length);
stop=HTML.IndexOf("<!-- END CURCON-->",0,HTML.Length);
temp=HTML.Substring(start, stop - start);
start=temp.IndexOf("<b>");
stop=temp.IndexOf("</b>");
string degree=temp.Substring(start+3,stop - start -3);
start=temp.IndexOf("<img");
stop=temp.IndexOf("</td>",start);
string img=temp.Substring(start,stop - start);
lblWeather.Text=degree + "<br>" + 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"));
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("<table border=0 cellpadding=2 cellspacing=1 bgcolor=9999cc width=\"85%\">",0,HTML.Length);
stop=HTML.IndexOf("</table>",start)+8;
temp=HTML.Substring(start, stop - start);
Weather2.Text=temp;
}
}
}
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