getwebcontent.aspx.cs

ASP C#代码实例 适合初学人士学习使用

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.IO;
using System.Net;
using System.Text;

namespace Example_12_22
{
	/// <summary>
	/// GetWebContent 的摘要说明。
	/// </summary>
	public class GetWebContent : System.Web.UI.Page
	{
		protected System.Web.UI.WebControls.TextBox ContentBox;
		protected System.Web.UI.WebControls.TextBox WebUrl;
		protected System.Web.UI.WebControls.Button GetContent;
		protected System.Web.UI.WebControls.RegularExpressionValidator rgUrl;
		protected Example_12_22.XmlTransformer Xmltransformer1;
	
		private void Page_Load(object sender, System.EventArgs e)
		{
			if(!Page.IsPostBack)
			{
//				GetWebContents("http://www.gscas.ac.cn");
			}
		}

		private void GetWebContents(String url)
		{
			if(Page.IsValid == true)
			{
				ContentBox.Text = GrabUrl(url);
			}
		}

		private String GrabUrl(String url)
		{
			WebClient wclient = new WebClient();
			Stream stream = wclient.OpenRead(url);
			StreamReader readStream = new StreamReader(stream,Encoding.Default);
		
			String urlr = readStream.ReadToEnd();
			stream.Close();

			return(urlr);
		}

		#region Web 窗体设计器生成的代码
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{    
			this.GetContent.Click += new System.EventHandler(this.GetContent_Click);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion

		private void GetContent_Click(object sender, System.EventArgs e)
		{
			if(WebUrl.Text.Length > 0)
			{
				GetWebContents(WebUrl.Text.Trim());
			}
		}
	}
}