public void Crawl()
{
Init();
Console.WriteLine("Spider Initialized");
UrlsMng.AddUrl(new KeyValuePair <string, int> (rootUrl, 0));
for (int i = 0; i < threadsNum; i++)
{
threads [i].Start(i);
idleThreads [i] = false;
Console.WriteLine("第" + (i + 1) + "条线程开启");
}
}
void CrawlProc(object threadIndex)
{
var currentIndex = (int)threadIndex;
while (true)
{
if (!UrlsMng.HasNewUrl)
{
idleThreads[currentIndex] = true;
if (idleThreads.All(t => t))
{
Console.WriteLine("第" + currentIndex + "条线程退出");
break;
}
Thread.Sleep(2000);
continue;
}
idleThreads[currentIndex] = false;
KeyValuePair <string, int> curntURL = new KeyValuePair <string, int>();
lock (UrlsMng)
{
if (UrlsMng.HasNewUrl)
{
curntURL = UrlsMng.GetUrl();
}
else
{
continue;
}
}
var html = Downloader.Download(curntURL.Key);
var parseResult = Parser.ParseURLS(html, curntURL.Value);
lock (UrlsMng)
parseResult.Keys.ToList().ForEach(url => UrlsMng.AddUrl(new KeyValuePair <string, int>(url, curntURL.Value + 1)));
var filteredContent = Parser.ParseHTML(html);
if (filteredContent == null)
{
filteredContent = html;
}
lock (DataHdler)
DataHdler.CollectData(curntURL.Key, curntURL.Value, html, filteredContent);
}
}