具有ID属性的对象的NSJSONSerialization [英] NSJSONSerialization for an object with an id attribute

问题描述

因此，我正在尝试执行一个返回一些Json的GET请求.从此请求返回的json具有id属性，因此我使用NSJSONSerialization解析json的类应具有id属性.由于id是在Objective-c中保留的，因此我不能将其作为属性包含在类中.基本上，我的问题归结为该怎么做，以确保将id属性正确解析为类的对象.

So I'm trying to do a GET request that returns some Json. The json that gets returned from this request has an id attribute, so the class that I use NSJSONSerialization to parse the json should have an id attribute. Since id is reserved in objective-c, I can't include it as an attribute in my class. Basically, my question boils down to what should I do to make sure the id attribute gets parsed correctly into an object of my class.

推荐答案

是的，id是保留关键字(尽管，正如乔什指出，您可以将其用作变量名，他说的很对，这是个坏主意)，但是它仍然可以用作NSDictionary中的键.例如，如果您的JSON看起来像:

Yes, id is a reserved keyword (although, as Josh points out, you could use it as a variable name, he's quite right that's a bad idea), but it can still be used as a key in a NSDictionary. For example, if your JSON looks like:

{ "id" : "23432423", "name" : "Jason Boggess" }

然后可以按如下方式对其进行解析:

You can then parse it as follows:

NSError *error = nil;
NSDictionary *dictionary = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];
if (error) {
    NSLog(@"%s: JSONObjectWithData error: %@", __FUNCTION__, error);
    return;
}
NSString *identifier = dictionary[@"id"];
NSString *name = dictionary[@"name"];

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