我可以通过NSURLResponse获取URL吗？

Question

我有一个网址并使用viglink api我创建了另一个,现在使用viglink api我想获取URL,如果我得到响应.

  NSString *vigLinkApiKey = @"somekey";
        NSString *url = self.textfieldProductURL.stringValue;
        NSString *affiliatedUrl = [NSString stringWithFormat:@"http://api.viglink.com/api/click?key=%@&out=%@&loc=http://amazon.com[&cuid=%@][&reaf=0][&ref=http://amazon.com]", vigLinkApiKey, url, [PFUser currentUser].username];

        NSLog(@"Product URL: %@", url);

        NSURLRequest *urlRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:affiliatedUrl] cachePolicy:NSURLRequestReturnCacheDataElseLoad timeoutInterval:30];

        NSData *urlData;
        NSURLResponse *response;
        NSError *error;

        // Make synchronous request
        urlData = [NSURLConnection sendSynchronousRequest:urlRequest
                                        returningResponse:&response
                                                    error:&error];
        NSString *str = [[NSString alloc] initWithData:urlData encoding:NSUTF8StringEncoding];
        NSLog(@"str:%@",str);

现在,最后我想在得到回复时获取URL.可能吗.我怎么能得到这个网址？

请发送答案.

谢谢.

Answer 1

NSURLResponse有一个方法- URL用它来获取URL.

NSURL *url = [response URL];

https://developer.apple.com/library/mac/documentation/Cocoa/Reference/Foundation/Classes/NSURLResponse_Class/Reference/Reference.html#//apple_ref/occ/instm/NSURLResponse/URL