HTML:
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head id="Head1" runat="server"> <title>得到网页源代码</title> </head> <body MS_POSITIONING="GridLayout"> <form id="aspNetBuffer" method="post" runat="server"> <div align="center" style="FONT-WEIGHT: bold">得到任意网页源代码</div> <asp:TextBox id="UrlText" runat="server" Width="400px">http://dotnet.aspx.cc/content.aspx </asp:TextBox> <asp:Button id="WebClientButton" Runat="server" Text="用WebClient得到" OnClick="WebClientButton_Click"></asp:Button> <asp:Button id="WebRequestButton" runat="server" Text="用WebRequest得到" OnClick="WebRequestButton_Click"></asp:Button> <asp:TextBox id="ContentHtml" runat="server" Width="100%" Height="360px" TextMode="MultiLine"> </asp:TextBox> </form> </body> </html>
ASPX:
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; public partial class _Default : System.Web.UI.Page { private string PageUrl = ""; protected void Page_Load(object sender, EventArgs e) { } protected void WebClientButton_Click(object sender, EventArgs e) { PageUrl = UrlText.Text; WebClient wc = new WebClient(); wc.Credentials = CredentialCache.DefaultCredentials; ///方法一： Byte[] pageData = wc.DownloadData(PageUrl); ContentHtml.Text = Encoding.Default.GetString(pageData); /// 方法二： /// ***************代码开始********** /// Stream resStream = wc.OpenRead(PageUrl); /// StreamReader sr = new StreamReader(resStream,System.Text.Encoding.Default); /// ContentHtml.Text = sr.ReadToEnd(); /// resStream.Close(); /// **************代码结束******** /// wc.Dispose(); } protected void WebRequestButton_Click(object sender, EventArgs e) { PageUrl = UrlText.Text; WebRequest request = WebRequest.Create(PageUrl); WebResponse response = request.GetResponse(); Stream resStream = response.GetResponseStream(); StreamReader sr = new StreamReader(resStream, System.Text.Encoding.Default); ContentHtml.Text = sr.ReadToEnd(); resStream.Close(); sr.Close(); } }
WebClient和WebRequest获取html代码,布布扣,bubuko.com
原文：http://www.cnblogs.com/sky-net/p/3853359.html