C#不用WebBrowser直接下载网页HTML源码 怎么在Winform中的Webbrowser上显示一个本地的...
.net\u6846\u67b6\u6709\u6ca1\u6709\u529e\u6cd5\u4e0d\u7528webbrowser\u63a7\u4ef6\u8bbf\u95ee\u4e00\u4e2a\u9875\u9762\uff0c\u7136\u540e\u4fdd\u5b58\u8fd4\u56de\u7684html\uff1f\u83b7\u53d6HTML\u672c\u8eab\u5c31\u4e0d\u9700\u8981\u4efb\u4f55\u63a7\u4ef6\u7684\uff0c\u7f51\u4e0a\u793a\u4f8b\u5f88\u591a\uff0c\u641c\u7d22\u4e0b
C#\u83b7\u53d6\u7f51\u9875HTML\u6e90\u7801
1.webBrowser1.DocumentText = \u672c\u5730\u8bfb\u53d6\u7684\u7f51\u9875\u6587\u672c\u3002
2.webBrowser1.Url = new Uri(\u672c\u5730\u7f51\u9875\u8def\u5f84);
3.\u672c\u673a\u542f\u7528\uff08IIS \u6216\u5176\u5b83 \uff09\u670d\u52a1\u5668\uff0c\u83b7\u53d6\u672c\u5730\u7f51\u9875\u5730\u5740\u6216\u5728webBrowser1\u4e2d\u663e\u793a\u3002
调用方法：string html=DownloadData("http://www.baidu.com",Encoding.GetEncoding("gb2312"));
public static string DownloadData(string url,Encoding encoding)
{
WebClient web = new WebClient();
return encoding.GetString(web.DownloadData(url));
}
复杂一点用HttpWebRequest/HttpWebResponse：
调用方法：string html=DownloadHtmlPage("http://www.baidu.com",Encoding.GetEncoding("gb2312"),"GET",20);
public static string DownloadHtmlPage(string pageUrl, Encoding encoding, string requestMethod,int timeOut)
{
string value = string.Empty;
HttpWebResponse response=null;
Stream data=null;
StreamReader sr=null;
try
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(pageUrl);
request.Method = requestMethod;
if (timeOut != -1) request.Timeout = timeOut;
response = (HttpWebResponse)request.GetResponse();
data = response.GetResponseStream();
sr = new StreamReader(data, encoding);
string str;
StringBuilder source = new StringBuilder();
while ((str = sr.ReadLine()) != null)
source.Append(str).Append("\r\n");
value = source.ToString();
}
finally
{
if (sr != null) sr.Close();
if(data!=null) data.Close();
if(response!=null) response.Close();
}
return value;
}
可以直接用WebClient。具体的参考MSDN，比自己用HttpWebRequest和HttpWebResponse简单许多。但是在需要Cookies的场合，还是使用后者比较可靠一点，或自己重写WebClient。
你获得的源码都是html超文本标记语言，不会得到ASP JSP PHP代码的
源码有那么容易获取吗？有那么容易获取，网站早就不安全了。
/// <summary>
/// 获取html代码
/// </summary>
/// <param name="url">网页地址</param>
/// <returns></returns>
public string GetHtml(string url)
{
string str = string.Empty;
try
{
WebRequest request = WebRequest.Create(url);
request.Timeout = 30000;
request.Headers.Set("Pragma", "no-cache");
WebResponse response = request.GetResponse();
Stream streamReceive = response.GetResponseStream();
Encoding encoding = Encoding.GetEncoding("GB2312");
StreamReader streamReader = new StreamReader(streamReceive, encoding);
str = streamReader.ReadToEnd();
streamReader.Close();
}
catch (Exception ex)
{ }
return str;
}
测试过 没问题 给分 有图有真相 读取Mop的帖子
三楼说的不错,最常用也是最先能想起的就是webclient了!
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