首先，我建议将数据格式更改为以下形式:

First of all I'd suggest changing the format of your data to something like this:

{
   "london":{
      "link":"http://www.London.co.uk",
      "moredata":"..."
   },
   "paris":{
      "link":"http://www.Paris.fr",
      "moredata":"..."
   }
}

这将代表具有相关属性的城市.在您的版本中，无法找到特定城市的正确链接.

This will represent a city with it's associated properties. In your version it's impossible to lookup the right link for a specific city.

然后，您可以按以下方式解析和访问不同的部分:

Then you can parse and access the different parts as follows:

NSString *json = @"{\"london\":{\"link\":\"http://www.London.co.uk\",\"moredata\":\"...\"},\"paris\":{\"link\":\"http://www.Paris.fr\",\"moredata\":\"...\"}}";

NSData *data = [json dataUsingEncoding:NSUTF8StringEncoding];

NSError *error;

NSDictionary *cities = [NSJSONSerialization JSONObjectWithData:data options:nil error:&error];

NSLog(@"link to london: %@", cities[@"london"][@"link"]);

>> link to london: http://www.London.co.uk

此后，您必须使用提取的链接来填充Web视图.

After this You have to feed your webview with the extracted link.