如何打造网站克隆仿站工具(C#版)
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前两天朋友叫我模仿一个网站,刚刚开始,我一个页面一个页面查看源码并复制和保存,花了我很多时间,一个字“累”,为了减轻工作量,我写了个网站“克隆工具”,一键克隆,比起人工操作,
效率提高了200%以上,精确度也大大提高,虽然网上也很多网站克隆工具,但我觉得作为一个程序员,要有点研究精神,哈哈哈,可以根据自己的需要随意编写自己需要的功能。
下面我将我写的“网站克隆工具”实现方法分享给大家,源码在文末有下载链接,有需要的朋友可以下载来玩,也可以根据自己的需要做相应的修改或优化。
一睹为快,先看看界面:
简单的工作流程:
项目代码目录结构:
下面一步步实现程序功能:
1.新建主界面窗体(MainForm.cs):
2.新建模型类(UrlModel.cs)
public class UrlModel { public string RelatedPath { get; set; } public string AbsoluteUri { get; set; } public string CurrPath { get; set; } public string RootPath { get; set; } public string Host { get; set; } public int Port { get; set; } public string Scheme { get; set; } }
3.新建服务类(Services)
UrlParser:
public class UrlParser { public static UrlModel Parse(string url) { UrlModel model = new UrlModel(); //默认 if (url.Length < 8) throw new Exception("url参数不正确"); else if (!url.ToLower().StartsWith("http:") && !url.ToLower().StartsWith("https:")) throw new Exception("url格式有误"); if (url.LastIndexOf(‘/‘) < 8) url = url + "/"; Regex reg = new Regex("(?<scheme>(http|https))://(?<host>.+?)/", RegexOptions.Singleline); if (reg.IsMatch(url)) { string scheme = reg.Match(url).Groups["scheme"].Value; string host = reg.Match(url).Groups["host"].Value; if (host.Contains(":")) { var aa = host.Split(‘:‘); if (aa.Length == 2) { model.Host = aa[0]; model.Port = int.Parse(aa[1]); } } else { model.Host = host; model.Port = 80; } int index = url.IndexOf(‘/‘, 8); model.RelatedPath = url.Substring(index); model.AbsoluteUri = url; model.Scheme = scheme; model.CurrPath = url.Substring(0, url.LastIndexOf("/")); if (80 == model.Port) { model.RootPath = string.Format("{0}://{1}", model.Scheme, model.Host); } else { model.RootPath = string.Format("{0}://{1}:{2", model.Scheme, model.Host, model.Port); } } else { throw new Exception("url解析失败!"); } return model; } }
WebPageService:
/// <summary> /// 网页处理服务工具 /// </summary> public class WebPageService { private static string[] excludekeys = { "http:", "https:", "//", "#", "javascript:", "?", "tel:", "mailto:" }; /// <summary> /// 获取所有html元素的href属性值,只获取站点本地的链接,站外的不获取 /// </summary> /// <param name="html">页面的html源码</param> /// <returns></returns> public static List<UrlModel> GetLocalHrefs(string url,string html) { if (string.IsNullOrEmpty(html)) return new List<UrlModel>(); Dictionary<string, UrlModel> urls = GetHrefs(url,html); List<UrlModel> newUrls = new List<UrlModel>(); if (null != urls) { foreach (string key in urls.Keys) { string newkey = key.ToLower(); bool iscontained = false; foreach (var exkey in excludekeys) { if (newkey.IndexOf(exkey) == 0) { iscontained = true; break; } } if (!iscontained) { //只获取本地路径 newUrls.Add(urls[key]); } } } return newUrls; } /// <summary> /// 获取所有html元素的src属性值,只获取站点本地的链接,站外的不获取 /// </summary> /// <param name="html">页面的html源码</param> /// <returns></returns> public static List<UrlModel> GetLocalSrcs(string url,string html) { if (string.IsNullOrEmpty(html)) return new List<UrlModel>(); Dictionary<string, UrlModel> urls = GetSrc(url, html); List<UrlModel> newUrls = new List<UrlModel>(); if (null != urls) { foreach (string key in urls.Keys) { string newkey = key.ToLower(); bool iscontained = false; foreach (var exkey in excludekeys) { if (newkey.IndexOf(exkey) == 0) { iscontained = true; break; } } if (!iscontained) { //只获取本地路径 newUrls.Add(urls[key]); } } } return newUrls; } private static Dictionary<string, UrlModel> GetHrefs(string url,string html) { if (string.IsNullOrEmpty(html)) return null; UrlModel currUrl = UrlParser.Parse(url); Dictionary<string, UrlModel> urls = new Dictionary<string, UrlModel>(); Regex reg = new Regex("href="(?<Url>.+?)"", RegexOptions.IgnoreCase); if (currUrl != null) { AddUrlModel(html, currUrl, urls, reg); } return urls; } private static Dictionary<string, UrlModel> GetSrc(string url,string html) { if (string.IsNullOrEmpty(html)) return null; UrlModel currUrl = UrlParser.Parse(url); Dictionary<string, UrlModel> urls = new Dictionary<string, UrlModel>(); Regex reg = new Regex("(src="(?<Url>.+?)"|url\\((?<Url>.+?)\\))", RegexOptions.IgnoreCase); if (currUrl != null) { AddUrlModel(html, currUrl, urls, reg); } return urls; } private static void AddUrlModel(string html, UrlModel currUrl, Dictionary<string, UrlModel> urls, Regex reg) { if (reg.IsMatch(html)) { MatchCollection matchs = reg.Matches(html); foreach (Match item in matchs) { try { string strUrl = item.Groups["Url"].Value; UrlModel model = new UrlModel(); model.RelatedPath = strUrl; model.CurrPath = currUrl.CurrPath; model.RootPath = currUrl.RootPath; model.Scheme = currUrl.Scheme; model.Port = currUrl.Port; model.Host = currUrl.Host; if (strUrl.StartsWith("/")) { //绝对目录情况下 model.AbsoluteUri = string.Format("{0}{1}", model.RootPath, model.RelatedPath); } else { //相对目录情况下 string currPath = model.CurrPath; int depth = 0; string path = model.RelatedPath; if (path.StartsWith("..")) { try { while (path.StartsWith("..")) { depth++; path = path.Substring(3); currPath = currPath.Substring(0, currPath.LastIndexOf("/")); } model.AbsoluteUri = string.Format("{0}/{1}", currPath, path); } catch { } } else { model.AbsoluteUri = string.Format("{0}/{1}", currPath, path); } } strUrl = strUrl.Trim().ToLower(); urls.Add(strUrl, model); } catch { } } } } }
4.网页源码扒取类
public class HttpTool { public static string HttpGet(string url, string referer, string encoding, out string msg) { msg = string.Empty; string result = string.Empty; try { HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url); //request.ContentType = "application/x-www-form-urlencoded"; request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"; request.Referer = referer; request.Method = "GET"; request.UserAgent = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.122 Safari/537.36"; //request.Headers.Add("Accept-Language", "zh-cn"); //request.Headers.Add("Accept-Encoding", "gzip,deflate"); request.Timeout = 60000;//一分钟 HttpWebResponse response = (HttpWebResponse)request.GetResponse(); Stream responseStream = response.GetResponseStream(); if (responseStream != null) { StreamReader reader = new StreamReader(responseStream, System.Text.Encoding.GetEncoding(encoding)); result = reader.ReadToEnd(); reader.Close(); responseStream.Close(); request.Abort(); response.Close(); return result.Trim(); } } catch (Exception ex) { msg = ex.Message + ex.StackTrace; } return result; } public static void DownFile(string uRLAddress, string localPath, string filename) { WebClient client = new WebClient(); Stream str = client.OpenRead(uRLAddress); StreamReader reader = new StreamReader(str); byte[] mbyte = new byte[1000000]; int allmybyte = (int)mbyte.Length; int startmbyte = 0; while (allmybyte > 0) { int m = str.Read(mbyte, startmbyte, allmybyte); if (m == 0) { break; } startmbyte += m; allmybyte -= m; } reader.Dispose(); str.Dispose(); string path = Path.Combine(localPath, filename); FileStream fstr = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write); fstr.Write(mbyte, 0, startmbyte); fstr.Flush(); fstr.Close(); } }
5.网站克隆主类
接口:
interface IWebCloneWorker
{
void Start();
void Cancel();
}
实现类:
public class WebCloneWorker : IWebCloneWorker
{
//网站页面克隆深度(如:0-首页,1-分类页,2-详细页面)
public static int depth = 0;
//要克隆的网站网址
public string Url { get; set; }
//克隆后,保存的路径
public string SavePath { get; set; }
private BackgroundWorker backgroundWorker1 = null;
public event UrlChangedEventHandler UrlChanged;
public event FileSavedSuccessEventHandler FileSavedSuccess;
public event FileSavedFailEventHandler FileSavedFail;
public event DownloadCompletedEventHandler DownloadCompleted;
public event CollectingUrlEventHandler CollectingUrl;
public event CollectedUrlEventHandler CollectedUrl;
public event ProgressChangedEventHandler ProgressChanged;
//所有页面、文件资源地址集合
private Dictionary<string, UrlModel> _Hrefs = new Dictionary<string, UrlModel>();
/// <summary>
/// 所有页面、文件资源地址集合
/// </summary>
public Dictionary<string,UrlModel> Hrefs
{
get { return _Hrefs; }
set { _Hrefs = value; }
}
//网站页面请求编码,默认为UTF-8
private string _Encoding = "utf-8";
//网站页面请求编码,默认为UTF-8
public string Encoding
{
get { return _Encoding; }
set { _Encoding = value; }
}
public WebCloneWorker() { }
public WebCloneWorker(string url,string path)
{
//设置网站、保存路径
this.Url = url;
this.SavePath = path;
if (string.IsNullOrEmpty(this.Url))
throw new Exception("请输入网址");
if (string.IsNullOrEmpty(this.SavePath))
throw new Exception("请选择要保存的目录");
backgroundWorker1 = new BackgroundWorker();
//设置报告进度更新
backgroundWorker1.WorkerReportsProgress = true;
backgroundWorker1.WorkerSupportsCancellation = true;
//注册线程主体方法
backgroundWorker1.DoWork += backgroundWorker1_DoWork;
//注册更新UI方法
backgroundWorker1.ProgressChanged += backgroundWorker1_ProgressChanged;
//处理完毕
backgroundWorker1.RunWorkerCompleted += backgroundWorker1_RunWorkerCompleted;
}
void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
if (e.Cancelled) {
return;
}
if (this.DownloadCompleted != null)
{
DownloadCompletedEventArgs eventArgs = new DownloadCompletedEventArgs(e.Result, e.Error, e.Cancelled);
this.DownloadCompleted(this, eventArgs);
}
}
void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
{
//进度回调
if (this.ProgressChanged != null)
this.ProgressChanged(this, e);
UrlModel model = (UrlModel)e.UserState;
if (this.UrlChanged != null)
{
//Url改变后,回调
UrlChangedEventArgs eventArgs = new UrlChangedEventArgs(model);
this.UrlChanged(this, eventArgs);
}
try
{
string dir = this.SavePath;
string url = model.AbsoluteUri;
string AbsolutePath = url.Substring(url.IndexOf(‘/‘, 8));
string fileName = "";
if (url.IndexOf(‘?‘) > 0)
{
string path = AbsolutePath.Substring(0, model.RelatedPath.IndexOf(‘?‘));
fileName = System.IO.Path.GetFileName(path);
}
else
{
fileName = System.IO.Path.GetFileName(AbsolutePath);
}
//默认首页
if (string.IsNullOrEmpty(fileName) || fileName.IndexOf(".") < 0)
{
fileName = "index.html";
if (!AbsolutePath.EndsWith("/"))
AbsolutePath = AbsolutePath + "/";
}
fileName = System.Web.HttpUtility.UrlDecode(fileName);
string localPath = string.Format("{0}{1}", dir, System.IO.Path.GetDirectoryName(AbsolutePath));
if (!System.IO.Directory.Exists(localPath))
{
System.IO.Directory.CreateDirectory(localPath);
}
//判断文件是否存在,存在不再下载
string path2 = Path.Combine(localPath, fileName);
if (File.Exists(path2))
{
return;
}
//下载网页、图片、资源文件
HttpTool.DownFile(url, localPath, fileName);
//保存成功后,回调
if (this.FileSavedSuccess != null)
{
FileSavedSuccessEventArgs eventArgs = new FileSavedSuccessEventArgs(model);
this.FileSavedSuccess(this, eventArgs);
}
}
catch (Exception ex)
{
//保存失败后,回调
if (this.FileSavedFail != null)
{
FileSavedFailEventArgs eventArgs = new FileSavedFailEventArgs(ex);
this.FileSavedFail(this, eventArgs);
}
}
}
void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
{
//获取资源
GetResource();
int index = 1;
if (this.Hrefs.Keys.Count > 0)
{
foreach (var k in this.Hrefs.Keys)
{
//取消操作
if (backgroundWorker1.CancellationPending)
{
e.Cancel = true;
return;
}
backgroundWorker1.ReportProgress(index, this.Hrefs[k]);
index++;
//挂起当前线程200毫秒
Thread.Sleep(200);
}
}
}
public void Start()
{
if (this.backgroundWorker1.IsBusy)
return;
this.backgroundWorker1.RunWorkerAsync();
}
public void Cancel()
{
if (this.backgroundWorker1.CancellationPending)
return;
this.backgroundWorker1.CancelAsync();
}
private void GetResource()
{
string url = this.Url;
string referer = this.Url;
string msg = "";
string html = HttpTool.HttpGet(url, referer, this.Encoding, out msg);
//收集页面链接
GetHrefs(0, url, html);
//收集完毕
if (null != CollectedUrl)
{
UrlModel urlModel = new UrlModel();
CollectedUrlEventArgs eventArgs = new CollectedUrlEventArgs(urlModel);
this.CollectedUrl(this, eventArgs);
}
}
private void GetHrefs(int level,string url,string html)
{
#region 添加当前页
UrlModel currUrl = UrlParser.Parse(url);
try
{
//取消
if (backgroundWorker1.CancellationPending)
return;
this.Hrefs.Add(currUrl.RelatedPath, currUrl);
//收集回调
if (null != CollectingUrl)
{
CollectingUrlEventArgs eventArgs = new CollectingUrlEventArgs(currUrl);
this.CollectingUrl(this, eventArgs);
}
}
catch
{
}
#endregion
//获取相关链接(含有href属性的)
List<UrlModel> list1 = WebPageService.GetLocalHrefs(url,html);
//获取图片,文件等资源文件(含有src属性的)
List<UrlModel> listSrcs = WebPageService.GetLocalSrcs(url,html);
#region 获取当级资源文件
if (listSrcs != null)
{
for (int i = 0; i < listSrcs.Count; i++)
{
UrlModel urlModel = listSrcs[i];
try
{
//取消
if (backgroundWorker1.CancellationPending)
return;
this.Hrefs.Add(urlModel.RelatedPath, urlModel);
//收集回调
if (null != CollectingUrl)
{
CollectingUrlEventArgs eventArgs = new CollectingUrlEventArgs(urlModel);
this.CollectingUrl(this, eventArgs);
}
}
catch
{ }
}
}
#endregion
#region 获取子级页面资源
//获取第二级
if (list1 != null)
{
for (int i = 0; i < list1.Count; i++)
{
UrlModel urlModel = list1[i];
try
{
//取消
if (backgroundWorker1.CancellationPending)
return;
this.Hrefs.Add(urlModel.RelatedPath, urlModel);
//收集回调
if (null != CollectingUrl)
{
CollectingUrlEventArgs eventArgs = new CollectingUrlEventArgs(urlModel);
this.CollectingUrl(this, eventArgs);
}
}
catch
{ }
string msg = "";
html = HttpTool.HttpGet(urlModel.AbsoluteUri, urlModel.AbsoluteUri, this.Encoding, out msg);
#region 获取子级资源文件
/*
* 获取二级资源文件
* */
listSrcs = WebPageService.GetLocalSrcs(urlModel.AbsoluteUri, html);//资源文件
if (listSrcs != null)
{
for (int j = 0; j < listSrcs.Count; j++)
{
UrlModel urlModel2 = listSrcs[j];
try
{
//取消
if (backgroundWorker1.CancellationPending)
return;
this.Hrefs.Add(urlModel2.RelatedPath, urlModel2);
//收集回调
if (null != CollectingUrl)
{
CollectingUrlEventArgs eventArgs = new CollectingUrlEventArgs(urlModel2);
this.CollectingUrl(this, eventArgs);
}
}
catch
{ }
//挂起线程20毫秒
Thread.Sleep(20);
}
}
#endregion
//挂起线程20毫秒
Thread.Sleep(20);
//到达指定深度后,退出
if (level >= depth)
return;
//递归
GetHrefs(level + 1, urlModel.AbsoluteUri, html);
}
}
#endregion
}
}
6.一些事件、委托类:
public delegate void UrlChangedEventHandler(object sender, UrlChangedEventArgs e);
public delegate void FileSavedSuccessEventHandler(object sender, FileSavedSuccessEventArgs e);
public delegate void FileSavedFailEventHandler(object sender, FileSavedFailEventArgs e);
public delegate void DownloadCompletedEventHandler(object sender, DownloadCompletedEventArgs e);
public delegate void CollectingUrlEventHandler(object sender, CollectingUrlEventArgs e);
public delegate void CollectedUrlEventHandler(object sender, CollectedUrlEventArgs e);
public delegate void ProgressChangedEventHandler(object sender, ProgressChangedEventArgs e);
public class CollectedUrlEventArgs : EventArgs
public class CollectingUrlEventArgs : EventArgs
public class DownloadCompletedEventArgs : EventArgs
public class FileSavedFailEventArgs : EventArgs
public class FileSavedSuccessEventArgs : EventArgs
public class UrlChangedEventArgs : EventArgs
代码有点多,各位有需要的还是下载源码查看并运行吧,由于赶时间,没时间仔细测试程序的各个功能,难免有不足的地方。
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