Home > Developer > .Net Core

ASP.net (c #) creates a 24-hour Weather Forecast and real-time weather

Source: Internet
Author: User
Developer on Alibaba Coud: Build your first app with APIs, SDKs, and tutorials on the Alibaba Cloud. Read more ＞

This article describes ASP. NET real-time weather and 24-hour Weather Forecast in detail.
Modify the url to obtain the topic of the article about weather conditions in other cities.


ASP. NET real-time weather and 24-hour Weather Forecast (C #)
Modify the url to obtain the weather conditions of other cities.
For example, Guangzhou:
Http://weather.yahoo.com
/Forecast/CHXX0037_c.html
Note: Only applicable to weather forecasts on yahoo
GetWeather. aspx
-----------------------------------

Copy codeThe Code is as follows: <% @ 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 = "">
<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 = "weatsp2" runat = "server"> 24-hour Weather </asp: Label> </P>
<P>
<Asp: Button id = "btnGet2" runat = "server" Text = "Weather Forecast">
</Asp: Button> </P>
</FONT>
</Form>
</Body>
</HTML>
GetWeather. aspx. cs
---------------------------------------

Copy codeThe Code is as follows: 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 ("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;
}
}
} Please note

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
forecast weather gov api linux weather forecast wsi weather forecast weather forecast web service wsdl time and weather widget for website time and weather widget for website msn news and weather
Related Article
asp.net Core Data protection (the data Protection cluster sce...
asp.net core-authorize characteristics
Micro-service Monitoring zipkin+asp.net core
Combine ASP NET Core and SQL Server with Docker Compose
ASP. net mvc creates 404 jump instances (not 302 and 200), mv...
Comparison between Orchard and ABP architectures (aspnetboile...

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

What's Trending
Top 10 Tags
datastax versions naming convention zookeeper client class definition md5 microsoft sql server 2005 data structures exception handling error handling
Top 10 Keywords
microsoft download center down wordpress address url site address url wordpress address url windows installer 4 0 download 302 not found web address url definition site address url wordpress db2 integer mac os installation step by step pdf abbreviation for return

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

Get Started for Free

  • Sales Support

    1 on 1 presale consultation

    Chat Contact Sales

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

    Open a Ticket

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.

    Learn More