private void DoIt(ClamThread thread, Stream htmlStream, Link url)
{
if (!CacheHelper.EnableSearch)
{
return;
}
if (CacheHelper.SpideNum > CacheHelper.MaxResult)
{
return;
}
////解析页面,URL符合条件放入缓存，并把页面的连接抓出来放入缓存
UrlAnalysisProcessor.GetHrefs(url, htmlStream, thread.lnkPool);
////如果有连接，拿第一个发请求，没有就结束吧，反正这么耗资源的东西
if (thread.lnkPool.Count > 0)
{
Link firstLnk;
firstLnk = thread.lnkPool[0];
////拿到连接之后就在缓存中移除
thread.lnkPool.Remove(firstLnk);
firstLnk.TheadId = Thread.CurrentThread.ManagedThreadId;
Stream content = HttpPostUtility.SendReq(firstLnk.Href);
DoIt(thread, content, firstLnk);
}
else
{
//没连接了，停止吧,看其他线程的表现
thread._thread.Abort();
}
}
private void StartWork()
{
CacheHelper.EnableSearch = true;
CacheHelper.KeyWord = txtKeyword.Text;
////第一个请求给新浪，获得返回的HTML流
Stream htmlStream = HttpPostUtility.SendReq(CacheHelper.StartUrl);
Link startLnk = new Link()
{
Href = CacheHelper.StartUrl,
LinkName = "<a href = '" + CacheHelper.StartUrl + "' > 新浪 " + CacheHelper.StartUrl + " </a>"
};
////解析出连接
UrlAnalysisProcessor.GetHrefs(startLnk, htmlStream, CacheHelper.LnkPool);
for (int i = 0; i < CacheHelper.ThreadList.Length; i++)
{
CacheHelper.ThreadList[i] = new ClamThread();
CacheHelper.ThreadList[i].lnkPool = new List <Link>();
}
////把连接平分给每个线程
for (int i = 0; i < CacheHelper.LnkPool.Count / 2; i++)
{
int tIndex = i % CacheHelper.ThreadList.Length;
CacheHelper.ThreadList[tIndex].lnkPool.Add(CacheHelper.LnkPool[i]);
}
Action <ClamThread> clamIt = new Action <ClamThread>((clt) =>
{
if (clt.lnkPool.Count > 0)
{
Stream s = HttpPostUtility.SendReq(clt.lnkPool[0].Href);
DoIt(clt, s, clt.lnkPool[0]);
}
});
for (int i = 0; i < CacheHelper.ThreadList.Length; i++)
{
CacheHelper.ThreadList[i]._thread = new Thread(new ThreadStart(() =>
{
clamIt(CacheHelper.ThreadList[i]);
}));
/////每个线程开始工作的时候，休眠100ms
CacheHelper.ThreadList[i]._thread.Start();
Thread.Sleep(300);
}
}