C# WebClient DownloadString 不返回任何内容
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WebClient DownloadString not returning anything
提问by Marcelo Cantú
I want to get the source code from a Search query of Pirate Bay, I have this in my code but it doesn't return anything:
我想从海盗湾的搜索查询中获取源代码，我的代码中有这个，但它没有返回任何内容：
WebClient webpage = new WebClient();
string source= webpage.DownloadString("http://thepiratebay.sx/search/documentary/0/99/0");
采纳答案by Noctis
Here's a quick test:
这是一个快速测试：
xaml:
xml:
<Label Content="{Binding ElementName=window_name, Path=SourceTest}"></Label>
<Label Content="{Binding ElementName=window_name, Path=SourceTest2}"></Label>
Code:
代码：
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.";
Your URL will return an empty string, Google on the other side, will give you the source you're looking for.
您的 URL 将返回一个空字符串，另一方面，Google 将为您提供您正在寻找的来源。
Edit :As I assumed, you need to identify like a web browser. This works with your query:
编辑：正如我所假设的，您需要像网络浏览器一样进行识别。这适用于您的查询：
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);
}
