2

我编写了一个网页抓取程序来访问页面列表并将所有 html 写入文件。问题是,当我拉出一段文本时,一些字符会写成“�”。如何将这些字符拉到我的文本文件中?这是我的代码:

string baseUri = String.Format("http://www.rogersmushrooms.com/gallery/loadimage.asp?did={0}&blockName={1}", id.ToString(), name.Trim());

// our third request is for the actual webpage after the login.
HttpWebRequest request =
(HttpWebRequest)WebRequest.Create(baseUri);
request.Method = "GET";
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1)";
//get the response object, so that we may get the session cookie.
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());

// and read the response
string page = reader.ReadToEnd();

StreamWriter SW;
string filename = string.Format("{0}.txt", id.ToString());
SW = File.AppendText("C:\\Share\\" + filename);

SW.Write(page);

reader.Close();
response.Close();
4

3 回答 3

2

您正在将一个名为的页面保存loadimage到一个文本文件中。你确定那真的都是文字吗?

无论哪种方式,您都可以使用System.Net.WebClient.DownloadFile().

于 2010-06-14T20:17:20.190 回答
1

您需要在此行中指定您的编码:

StreamReader reader = new StreamReader(response.GetResponseStream());

File.AppendText("C:\\Share\\" + filename);使用UTF-8

于 2010-06-14T20:19:20.490 回答
0

指定 Unicode 编码,如下所示:

New StreamReader(response.GetResponseStream(), Text.Encoding.UTF8)

.. 相同的 StreamWriter

于 2010-06-14T20:17:44.777 回答