objective-c - 从 NSHTTPURLResponse 获取 "Location" header

Question

根本无法从响应中获取“位置” header 。 Wireshark 说我有一个:

Location: http://*/index.html#0;sid=865a84f0212a3a35d8e9d5f68398e535

但是

NSHTTPURLResponse *hr = (NSHTTPURLResponse*)response;
NSDictionary *dict = [hr allHeaderFields];          
NSLog(@"HEADERS : %@",[dict description]);

产生这个:

HEADERS : {
    Connection = "keep-alive";
    "Content-Encoding" = gzip;
    "Content-Type" = "text/html";
    Date = "Thu, 25 Mar 2010 08:12:08 GMT";
    "Last-Modified" = "Sat, 29 Nov 2008 15:50:54 GMT";
    Server = "nginx/0.7.59";
    "Transfer-Encoding" = Identity;
}

无处可寻。如何获得？我需要这个“sid”东西。

Answer 1

NSHTTPURLResponse 是 NSURLResponse 的子类，因此您只需向它询问它的 URL。这将返回一个 NSURL 对象，您可以从中获取 URL 组件，例如查询、参数字符串或片段。在您的情况下，您需要片段组件:

NSURL* url = [response URL];
NSString* fragment = [url fragment];
//fragment should be: 0;sid=865a84f0212a3a35d8e9d5f68398e535