求助！ASP.NET 采集网站数据问题？100分！！

zgz1989410 2012-02-17 06:11:16

要采集http://www.sooker.com/xuexiao/这个页面所有的学校信息（学校名称、学校图片路径、学校链接地址），
现在我通过HttpWebRequest请求资源，返回来的结果，用正则只能查找学校链接地址。
想要的结果是把每个学校的名称、学校图片路径、学校链接地址都采集下来并且以“**学校，**学校图片路径，**学校链接地址|**学校，**学校图片路径，**学校链接地址”格式出来。

结果如下：
新尚教育人民广场校区，http://www.sooker.com/data/files/store_551148/other/school_logo.jpg，http://www.sooker.com/551148/|
上海精锐教育黄浦西藏南路中心，http://www.sooker.com/data/files/store_321706/other/school_banner.png，http://www.sooker.com/321706/|
上海精锐教育嘉定丰庄中心，http://www.sooker.com/data/files/store_321719/other/school_banner.png，http://www.sooker.com/321719/|
.....
贝乐学科英语，http://www.sooker.com/data/files/store_554906/other/school_logo.jpg，http://www.sooker.com/554906/|

大家帮帮忙把这个问题解决了，并且把代码发出来。。谢谢！！

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zgz1989410 2012-02-24

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这几天有点事，耽误了，非常感谢“dalmeeme”

rr998 2012-02-20

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[Quote=引用 11 楼 dalmeeme 的回复:]

.//div[@class='pic']/a/img
当前（li）元素下class属性为pic的div后代，下面的a儿子，下面的img儿子。

.//a[@class='school-name']
当前（li）元素下class属性为school-name的a后代。

注意儿子和后代的区别。
[/Quote]

嗯谢谢。

夜色镇歌 2012-02-20

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用HtmlAgilityPack+1

[Quote=引用 2 楼 dalmeeme 的回复:]

用HtmlAgilityPack，自行网上下载dll文件，获取：
C# code
HttpWebRequest httpWebRequest = WebRequest.Create(@"http://www.sooker.com/xuexiao/") as HttpWebRequest;
HttpWebResponse httpWebResponse = ht……
[/Quote]

dalmeeme 2012-02-20

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.//div[@class='pic']/a/img
当前（li）元素下class属性为pic的div后代，下面的a儿子，下面的img儿子。

.//a[@class='school-name']
当前（li）元素下class属性为school-name的a后代。

注意儿子和后代的区别。

rr998 2012-02-20

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[Quote=引用 4 楼 dalmeeme 的回复:]
不好意思，反掉了，更正一下：

C# code

HttpWebRequest httpWebRequest = WebRequest.Create(@"http://www.sooker.com/xuexiao/") as HttpWebRequest;
HttpWebResponse httpWebResponse = httpWebRequest.G……
[/Quote]

能不能说下，采集这样写的规则啊



HtmlNode img = lis[i].SelectSingleNode(".//div[@class='pic']/a/img");

            HtmlNode anchor = lis[i].SelectSingleNode(".//a[@class='school-name']");

rr998 2012-02-20

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学习了！收藏起来！

dalmeeme 2012-02-19

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开头using HtmlAgilityPack;

dalmeeme 2012-02-19

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这个HtmlDocument是属于HtmlAgilityPack的，http://www.codeplex.com/htmlagilitypack

zgz1989410 2012-02-19

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编译器错误消息: CS0234: 命名空间“System”中不存在类型或命名空间名称“Windows”(是缺少程序集引用吗?)
源错误:
行 13: using System.Net;
行 14: using System.Text;
行 15: using System.Windows.Forms;

大哥，BS架构好像没有 System.Windows.Forms.HtmlDocument 怎么解决啊？

dalmeeme 2012-02-17

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不好意思，反掉了，更正一下：

		HttpWebRequest httpWebRequest = WebRequest.Create(@"http://www.sooker.com/xuexiao/") as HttpWebRequest;

		HttpWebResponse httpWebResponse = httpWebRequest.GetResponse() as HttpWebResponse;

		Stream stream = httpWebResponse.GetResponseStream();

		StreamReader reader = new StreamReader(stream, Encoding.GetEncoding("gb2312"));

		string s = reader.ReadToEnd();

		reader.Close();

		httpWebResponse.Close();

		HtmlDocument htmlDoc = new HtmlDocument();

		htmlDoc.LoadHtml(s);

		HtmlNodeCollection lis = htmlDoc.DocumentNode.SelectNodes(@"//ul[@class='curriculumUl']/li");

		string[] results = new string[lis.Count];

		for (int i = 0; i < lis.Count; i++)

		{

			HtmlNode img = lis[i].SelectSingleNode(".//div[@class='pic']/a/img");

			HtmlNode anchor = lis[i].SelectSingleNode(".//a[@class='school-name']");

			results[i] = string.Format("{0},{1},{2}", anchor.InnerHtml, img.Attributes["src"].Value, anchor.Attributes["href"].Value);

		}

		string r = string.Join("|", results);

		Response.Write(r);

		Response.End();

输出：
新尚教育人民广场校区,http://www.sooker.com/data/files/store_551148/other/school_logo.jpg,http://www.sooker.com/551148/|上海精锐教育黄浦西藏南路中心,http://www.sooker.com/data/files/store_321706/other/school_banner.png,http://www.sooker.com/321706/|上海精锐教育嘉定丰庄中心,http://www.sooker.com/data/files/store_321719/other/school_banner.png,http://www.sooker.com/321719/|上海精锐教育闵行龙柏中心,http://www.sooker.com/data/files/store_548150/other/school_banner.png,http://www.sooker.com/548150/|杭州京翰教育庆春校区,http://www.sooker.com/data/files/store_550463/other/school_banner.jpg,http://www.sooker.com/550463/|北京艺海星图艺术培训机构,http://www.sooker.com/data/files/store_549020/other/school_logo.jpg,http://www.sooker.com/549020/|北京博雅环球,http://www.sooker.com/data/files/store_551650/other/school_logo.jpg,http://www.sooker.com/551650/|启德学府,http://www.sooker.com/data/files/store_320298/other/school_logo.png,http://www.sooker.com/320298/|石家庄师大美术辅导美意培训中心,http://www.sooker.com/data/files/store_321068/other/school_banner.jpg,http://www.sooker.com/321068/|贝乐学科英语,http://www.sooker.com/data/files/store_554906/other/school_logo.jpg,http://www.sooker.com/554906/

dalmeeme 2012-02-17

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按照楼主要求的格式：

		HttpWebRequest httpWebRequest = WebRequest.Create(@"http://www.sooker.com/xuexiao/") as HttpWebRequest;

		HttpWebResponse httpWebResponse = httpWebRequest.GetResponse() as HttpWebResponse;

		Stream stream = httpWebResponse.GetResponseStream();

		StreamReader reader = new StreamReader(stream, Encoding.GetEncoding("gb2312"));

		string s = reader.ReadToEnd();

		reader.Close();

		httpWebResponse.Close();

		HtmlDocument htmlDoc = new HtmlDocument();

		htmlDoc.LoadHtml(s);

		HtmlNodeCollection lis = htmlDoc.DocumentNode.SelectNodes(@"//ul[@class='curriculumUl']/li");

		string[] results = new string[lis.Count];

		for (int i = 0; i < lis.Count; i++)

		{

			HtmlNode img = lis[i].SelectSingleNode(".//div[@class='pic']/a/img");

			HtmlNode anchor = lis[i].SelectSingleNode(".//a[@class='school-name']");

			results[i] = string.Format("{0},{1},{2}", img.Attributes["src"].Value, anchor.InnerHtml, anchor.Attributes["href"].Value);

		}

		string r = string.Join("|", results);

		Response.Write(r);

		Response.End();

输出：
http://www.sooker.com/data/files/store_551148/other/school_logo.jpg,新尚教育人民广场校区,http://www.sooker.com/551148/|http://www.sooker.com/data/files/store_321706/other/school_banner.png,上海精锐教育黄浦西藏南路中心,http://www.sooker.com/321706/|http://www.sooker.com/data/files/store_321719/other/school_banner.png,上海精锐教育嘉定丰庄中心,http://www.sooker.com/321719/|http://www.sooker.com/data/files/store_548150/other/school_banner.png,上海精锐教育闵行龙柏中心,http://www.sooker.com/548150/|http://www.sooker.com/data/files/store_550463/other/school_banner.jpg,杭州京翰教育庆春校区,http://www.sooker.com/550463/|http://www.sooker.com/data/files/store_549020/other/school_logo.jpg,北京艺海星图艺术培训机构,http://www.sooker.com/549020/|http://www.sooker.com/data/files/store_551650/other/school_logo.jpg,北京博雅环球,http://www.sooker.com/551650/|http://www.sooker.com/data/files/store_320298/other/school_logo.png,启德学府,http://www.sooker.com/320298/|http://www.sooker.com/data/files/store_321068/other/school_banner.jpg,石家庄师大美术辅导美意培训中心,http://www.sooker.com/321068/|http://www.sooker.com/data/files/store_554906/other/school_logo.jpg,贝乐学科英语,http://www.sooker.com/554906/

dalmeeme 2012-02-17

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用HtmlAgilityPack，自行网上下载dll文件，获取：

		HttpWebRequest httpWebRequest = WebRequest.Create(@"http://www.sooker.com/xuexiao/") as HttpWebRequest;

		HttpWebResponse httpWebResponse = httpWebRequest.GetResponse() as HttpWebResponse;

		Stream stream = httpWebResponse.GetResponseStream();

		StreamReader reader = new StreamReader(stream, Encoding.GetEncoding("gb2312"));

		string s = reader.ReadToEnd();

		reader.Close();

		httpWebResponse.Close();

		HtmlDocument htmlDoc = new HtmlDocument();

		htmlDoc.LoadHtml(s);

		HtmlNodeCollection imgs = htmlDoc.DocumentNode.SelectNodes(@"//ul[@class='curriculumUl']/li//div[@class='pic']/a/img");

		foreach (HtmlNode img in imgs)

			Response.Write(img.Attributes["src"].Value + "<br/>");

		HtmlNodeCollection anchors = htmlDoc.DocumentNode.SelectNodes(@"//ul[@class='curriculumUl']/li//a[@class='school-name']");

		foreach (HtmlNode anchor in anchors)

		{

			Response.Write(anchor.Attributes["href"].Value + "<br/>");

			Response.Write(anchor.InnerHtml + "<br/>");

		}

		Response.End();

输出：
http://www.sooker.com/data/files/store_551148/other/school_logo.jpg
http://www.sooker.com/data/files/store_321706/other/school_banner.png
http://www.sooker.com/data/files/store_321719/other/school_banner.png
http://www.sooker.com/data/files/store_548150/other/school_banner.png
http://www.sooker.com/data/files/store_550463/other/school_banner.jpg
http://www.sooker.com/data/files/store_549020/other/school_logo.jpg
http://www.sooker.com/data/files/store_551650/other/school_logo.jpg
http://www.sooker.com/data/files/store_320298/other/school_logo.png
http://www.sooker.com/data/files/store_321068/other/school_banner.jpg
http://www.sooker.com/data/files/store_554906/other/school_logo.jpg
http://www.sooker.com/551148/
新尚教育人民广场校区
http://www.sooker.com/321706/
上海精锐教育黄浦西藏南路中心
http://www.sooker.com/321719/
上海精锐教育嘉定丰庄中心
http://www.sooker.com/548150/
上海精锐教育闵行龙柏中心
http://www.sooker.com/550463/
杭州京翰教育庆春校区
http://www.sooker.com/549020/
北京艺海星图艺术培训机构
http://www.sooker.com/551650/
北京博雅环球
http://www.sooker.com/320298/
启德学府
http://www.sooker.com/321068/
石家庄师大美术辅导美意培训中心
http://www.sooker.com/554906/
贝乐学科英语

喜阳阳 2012-02-17