public BaseCrawlerAsyncService(string stock_id, CrawlerURL type)
{
switch (type)
{
case CrawlerURL.StockPriceNow:
URL = stockURL + stock_id;
mainSelector = @"center > table:nth-child(9) > tbody > tr > td > table > tbody > tr:nth-child(2) > ";
selector = new StockSelector();
break;
case CrawlerURL.StockJuristic:
URL = JuristicURL + stock_id + ".htm";
mainSelector = @"#main3 > div.mbx.bd3 > div.tabvl > table > tbody > ";
//selector = new StockSelector();
break;
case CrawlerURL.GainDrop5Day:
URL = stock5DayGainDrop + stock_id + ".htm";
mainSelector = @"#main3 > div.mbx.bd3 > div.tab > table > tbody > ";
//selector = new StockSelector();
break;
case CrawlerURL.Yields5Year:
URL = stockYieldsURL(stock_id);
mainSelector = @"#mainCol > div.br-trl > table > tbody > ";
//selector = new StockSelector();
break;
}
}
public async Task <StockNowPriceViewModel> GetStockPriceNowAsync(string stock_id)
{
StockNowPriceViewModel vm = new StockNowPriceViewModel();
string URL = stockURL + stock_id;
var dom = await BrowsingContext.New(config).OpenAsync(URL);// .Result;
var mainSelector = @"center > table:nth-child(9) > tbody > tr > td > table > tbody > tr:nth-child(2) > ";
StockSelector stock = new StockSelector()
{
StockDeal = mainSelector + "td:nth-child(3)",
StockGainDrop = mainSelector + "td:nth-child(6) > font",
};
vm.Price = dom.QuerySelector(stock.StockDeal).TextContent ?? "";
vm.GainDrop = dom.QuerySelector(stock.StockGainDrop).TextContent ?? "";
if (!string.IsNullOrWhiteSpace(vm.GainDrop))
{
vm.GainDrop = vm.GainDrop.Replace("\n", "").Trim();
}
if (vm.GainDrop.Contains("△"))
{
vm.Color = "Red";
}
else if (vm.GainDrop.Contains("▽"))
{
vm.Color = "Green";
}
else
{
vm.Color = "Balck";
}
return(vm);
}
public StockViewModel GetStockById(int id)
{
var URL_Id = id.ToString().PadLeft(4, '0');
StockViewModel stockVM = new StockViewModel()
{
StockID = URL_Id
};
string URL = "q/q?s=" + URL_Id;
var dom = BrowsingContext.New(config).OpenAsync(yahooStockURL + URL).Result;
#region Hide
var mainSelector = @"center > table:nth-child(9) > tbody > tr > td > table > tbody > tr:nth-child(2) > ";
StockSelector stock = new StockSelector()
{
StockName = mainSelector + "td:nth-child(1) > a:nth-child(1)",
StockTime = mainSelector + "td:nth-child(2)",
StockDeal = mainSelector + "td:nth-child(3)",
StockBuy = mainSelector + "td:nth-child(4)",
StockSell = mainSelector + "td:nth-child(5)",
StockGainDrop = mainSelector + "td:nth-child(6) > font",
StockShareCount = mainSelector + "td:nth-child(7)",
StockYesterday = mainSelector + "td:nth-child(8)",
StockOpen = mainSelector + "td:nth-child(9)",
StockTop = mainSelector + "td:nth-child(10)",
StockDown = mainSelector + "td:nth-child(11)",
};
//判斷是否有此股票
var page = dom.QuerySelector(stock.StockName);
if (page == null)
{
return(null);
}
var newStockProp = (from x in TypeDescriptor.GetProperties(stock).Cast <PropertyDescriptor>()
where x.Name != "StockID"
select x);
var setStockProp = (from x in TypeDescriptor.GetProperties(stockVM).Cast <PropertyDescriptor>()
where x.Name != "StockID"
select x);
foreach (var prop in newStockProp)
{
var selectorString = prop.GetValue(stock).ToString();
var data = (Object)dom.QuerySelectorAll(selectorString)
.Select(x => x.TextContent).FirstOrDefault().Replace("\n", "").Replace(URL_Id, "");
foreach (var item in setStockProp)
{
if (prop.Name == item.Name)
{
if (item.Name == "StockGainDrop")
{
data = (Object)data.ToString();
}
PropertyInfo p = stockVM.GetType().GetProperty(item.Name);
p.SetValue(stockVM, data);
}
}
}
#endregion
return(stockVM);
}