How to use NSJSONSerialization

最新推荐文章于 2025-12-30 19:17:10 发布

转载最新推荐文章于 2025-12-30 19:17:10 发布 · 2k 阅读

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#object #json #list

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本文探讨了在处理JSON数据时遇到的问题，即从NSArray解析为NSDictionary时的常见错误。通过提供实例和解决方案，帮助开发者正确理解并解决这一问题。

Your code seems fine except the result is an NSArray, not an NSDictionary, here is an example:

The first two lines just creates a data object with the JSON, the same as you would get reading it from the net.

NSString *jsonString = @"[{\"id\": \"1\", \"name\":\"Aaa\"}, {\"id\": \"2\", \"name\":\"Bbb\"}]";
NSData *jsonData = [jsonString dataUsingEncoding:NSUTF8StringEncoding];

NSError *e;
NSMutableArray *jsonList = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&e];
NSLog(@"jsonList: %@", jsonList);

NSLog contents (a list od dictionaries):

jsonList: (
           {
               id = 1;
               name = Aaa;
           },
           {
               id = 2;
               name = Bbb;
           }
           )