我有一个缩短的网址(例如t.co/12345678
)。我想解决重定向而无需通过NSURLConnection加载整个页面。显然,我可以通过发送NSURLConnection并等待响应来获取它,但这会首先加载整个页面。我只是在寻找重定向网址。这可能吗?如果是这样,怎么样?
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编辑:对于后人,这是amleszk建议的解决方案。
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:shortenedURL
cachePolicy:NSURLRequestReloadIgnoringCacheData
timeoutInterval:15.0f];
[request setHTTPMethod:@"HEAD"];
[NSURLConnection sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {
NSHTTPURLResponse *httpResponse = (NSHTTPURLResponse*)response;
NSURL *resolvedURL = [httpResponse URL];
NSLog(@"%@", resolvedURL);
}];
答案 0 :(得分:5)
与此相同的方法:finding the download size of a URL (Content-Length)
但你想要[NSURLResponse statusCode] = 301/302/303和 位置标题:Getting "Location" header from NSHTTPURLResponse