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
时间： 2024-08-04 07:24:14