WebClient的DownloadString不返回任何東西

Question

我想從海盜灣的搜索查詢的源代碼，我有這個在我的代碼，但它不返回任何東西：

WebClient webpage = new WebClient(); 
string source= webpage.DownloadString("http://thepiratebay.sx/search/documentary/0/99/0"); 

Answer 1

下面是一個簡單的測試：

XAML：

<Label Content="{Binding ElementName=window_name, Path=SourceTest}"></Label> 
<Label Content="{Binding ElementName=window_name, Path=SourceTest2}"></Label> 

代碼：

string source_url = "http://thepiratebay.sx/search/documentary"; 

WebClient webpage = new WebClient(); 
SourceTest = webpage.DownloadString(source_url); 
if (SourceTest == "") 
SourceTest = "stream was empty."; 


source_url = "http://www.google.com"; 

webpage = new WebClient(); 
SourceTest2 = webpage.DownloadString(source_url); 
if (SourceTest2 == "") 
    SourceTest2 = "stream was empty."; 

你的URL會返回一個空字符串，谷歌的另一邊，會給你你正在尋找的來源。

編輯： 正如我認爲，你需要找出像一個網頁瀏覽器。這與您的查詢：

string source_url = "http://thepiratebay.sx/search/documentary/0/99/0"; 

using (var webpage = new WebClient()) 
{ 
    webpage.Headers[HttpRequestHeader.UserAgent] = "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.2 (KHTML, like Gecko) Chrome/15.0.874.121 Safari/535.2"; 
    SourceTest = webpage.DownloadString(source_url); 
}